Monday, January 9, 2012

Anwar free 9 jan from sodomy case

KUALA LUMPUR — A Malaysian court acquitted opposition leader Anwar Ibrahim of sodomy charges Monday, a surprise ruling that could accelerate the political comeback of one of Asia’s most celebrated reformers ahead of an expected election this year.

“Justice has been done. I am vindicated,” Anwar told thousands of supporters outside Kuala Lumpur’s High Court at the end of the two-year trial that captivated the Muslim-majority nation since a former aide made the accusations in 2008. Some shouted “God is Great” and “reformasi” (reform).

The decision, based on the possible contamination of DNA samples, gives the opposition a firebrand leader in time for elections expected this year.

But it could also undermine one of his main arguments against the government of Prime Minister Najib Razak: That the judiciary is corrupt and biased.

“Najib can come out right now and say the government is reforming. He can point to this and say, things are changing. Now you’re seeing an independent judiciary,” said Shaun Levine, an Asia analyst with political risk consultancy Eurasia Group in Washington.

Judge Zabidin Mohamad Diah found Anwar not guilty due to doubts over whether DNA samples tendered as evidence were contaminated.

“And because it was a sexual offence, the court is reluctant to convict on uncorroborated evidence. Therefore the accused is acquitted and discharged,” Zabidin told a packed courtroom in the Malaysian capital.

Sex between males is a criminal offence in the country of 28 million people. It was the second time Anwar, a 64-year-old father of six, was charged under the law.

FORMER POLITICAL STAR

In the 1990s, Anwar was Malaysia’s political star, heir-apparent to then Prime Minister Mahathir Mohamad, his goateed, bespectacled face appearing on the cover of Time magazine in 1997 next to words “The Future of Asia.”

But he was sacked a year later as deputy prime minister and finance minister after campaigning against corruption and nepotism in politics, and then jailed on sodomy and corruption charges that Anwar and rights groups said were trumped up.

He spent six years in prison until his sodomy conviction was overturned in 2004, and then swiftly returned to politics as the head of a revitalized, multi-ethnic opposition whose strong showing in 2008′s elections deprived the ruling National Front of its traditional two-thirds majority in parliament.

Within weeks of that victory, and with his three-party Pakatan coalition close to a parliamentary majority, a former aide, Saiful Bukhari Azlan, filed a criminal complaint accusing Anwar of sodomizing him.

Anwar called the charges a “vile and despicable attempt at character assassination” by the ruling Barisan Nasional (National Front) coalition ahead of elections due in 2013 but likely to be held this year. A large majority of Malaysians surveyed in opinion polls also doubted the merit of the charges.

“The [verdict] will be more wind in the sails of the opposition Pakatan’s camp than in Barisan Nasional’s camp,” said Ooi Kee Beng, a deputy director at the Institute of Southeast Asian Studies of Singapore.

“Najib can of course say that the judiciary is not as corrupt as Pakatan says but so what? If the judiciary is not very corrupt, it doesn’t mean that the government is good.”

Najib, the son of a former prime minister, has slowly introduced social and political reforms while struggling to reverse a decline in opinion polls as leader of the United Malays National Organization, the Muslim ethnic-Malay dominated party that has ruled since independence from Britain in 1957.

His approval ratings have fallen over the year due to a growing religious divide that has alienated minority non-Muslims and fanned middle-class anger over the slow pace of promised political reforms.

“Malaysia has an independent judiciary and this verdict proves that the government does not hold sway over judges’ decisions,” his government said in a statement that also praised Najib’s “bold democratic reforms.”

But Najib is wary of moving too aggressively and provoking a backlash by conservatives in his Muslim ethnic-Malay dominated government. The election will be a test of whether he can assert a reformist agenda within his own party, Malaysia’s biggest.

A conviction would have meant a jail term of up to 20 years, effectively ending Anwar’s leadership of the opposition.

Anwar has promoted a rival vision for Malaysia that would abolish or scale back its most authoritarian laws and scrap a system of ethnic preferences for Malays that ethnic-Chinese and ethnic-Indian Malaysians say is unfair and has been cited by even some prominent Malays for holding Malaysia back.

Three explosions were heard in the parking area outside the courthouse around the time of the verdict, causing minor injuries to five people and damaging half a dozen cars and motorbikes. A police spokesman said three home-made explosives were detonated but it was unclear who was responsible.

Sunday, June 22, 2008

VALVE SEATINGS


Corrosion of stainless steel valve

Thursday, March 20th, 2008

Corrosion of stainless steel valve stems by packings. Stainless steel
valve stems—in particular those made of AISI type 410 (13Cr) steel—
corrode frequently where the face contacts the packing. The corrosion
occurs usually during storage preceding service, when the packing is saturated
with water from the hydrostatic test.
If the valve is placed into service immediately after the hydrostatic
test, no […]

Valve Compression packings

Thursday, March 20th, 2008

Compression Packings
Construction. Compression packings are the sealing elements in stuffing
boxes (see Figures 3-17 through 3-19). They consist of a soft material
that is stuffed into the stuffing box and compressed by a gland to form a
seal around the valve stem.
The packings may have to withstand extremes of temperature, be
resistant to aggressive media, display a low friction […]

Valve Asbestos Fiber Gaskets

Thursday, March 20th, 2008

Compressed Asbestos Fiber Gaskets
Compressed asbestos fiber is designed to combine the properties of
rubber and asbestos. Rubber has the ability to follow readily the surface
irregularities of the flange face, but it cannot support high loads in plain
strain or withstand higher temperatures. To increase the load-carrying
capacity and temperature resistance of rubber, but still retain some of its
original […]

Sealing with Sealants

Thursday, March 20th, 2008

Sealing with Sealants
The leakage passages between metal seatings can be closed by sealants
injected into the space between the seatings after the valve has been
closed. One metal-seated valve that relies completely on this sealing
method is the lubricated plug valve. The injection of a sealant to the seatings
is used also in some other types of valves to […]

VALVE SEATINGS

Thursday, March 20th, 2008

VALVE SEATINGS
Valve seatings are the portions of the seat and closure member that
contact each other for closure. Because the seatings are subject to wear
during the making of the seal, the scalability of the seatings tends to
diminish with operation.
Metal Seatings
Metal seatings are prone to deformation by trapped fluids and wear
particles. They are further damaged by corrosion, […]

Control VALVE Sealability Against Liquids

Thursday, March 20th, 2008

Sealability Against Gases
The sealability against gases is determined by the viscosity of the gas
and the size of the gas molecules. If the leakage capillary is large, the
leakage flow will be turbulent. As the diameter of the capillary decreases
and the Reynolds number decreases below its critical value, the leakage
flow becomes laminar, and the leakage flow will, […]

VALVE Sealability Against Liquids

Thursday, March 20th, 2008

Sealability Against Liquids
The scalability against liquids is determined by the surface tension and
the viscosity of the liquid.
When the leakage capillary is filled with gas, surface tension can
either draw the liquid into the capillary or repel the liquid, depending on
the angle of contact formed by the liquid with the capillary wall. The
value of the contact angle […]

Flow control valves

The Schrader Valve is a valve stem invented by August Schrader and is used on virtually all automobile tires and lower pressure bicycle tires. It is a poppet valve assisted by a spring. Schrader valves are also used on the fuel rail of some direct fuel injection engines and on […]

Control Valve Introduction

Friday, March 28th, 2008

Double check valve

A double check valve or double check assembly (DCA) is a backflow prevention device designed to protect water supplies from contamination. It consists of two check valves assembled in series usually with a ball valve or gate valve installed at each end for isolation and testing. Often, test […]

All ABout Valve

Friday, March 28th, 2008

ValVue
Privilege Level
Each user is assigned an account. For each account, there is a privilege level associated with it. You provide ValVue 2 users an appropriate privilege level so you can keep field devices secure from the
actions of unknowledgeable or unauthorized users. Privilege level ranges from ‘0’ to ‘9’, where level ‘0’ […]

Flow control valves

Friday, March 28th, 2008

Hydraulics Direct supplies various types of hydraulic products such as control valves, flow control valves and level gauges. Control valves provided by Hydraulics Direct are available in two models such as Flutec flow control valves with check valves and Flutec flow control valves.
Flutec flow control valves with check valves are available in different types. Each […]

Valve replacement

Introduction Diaphragm valves

Wednesday, April 30th, 2008

Single component diaphragm valves are designed to provide a precise fluid supply depending on the application. The dispensed output can be a bead, dot or fill. Material pressure upon the valve forces the diaphragm to allow material through the fluid body and out the dispensing tip. Applying air pressure to the top of the diaphragm […]

Electrohydraulic valve actuators

Wednesday, April 30th, 2008

Electrohydraulic valve actuators and hydraulic valve actuators convert fluid pressure into motion in response to a signal. They use an outside power source and receive signals that are measured in amperes, volts, or pressure. Some electrohydraulic valve actuators and hydraulic valve actuators move rotary motion valves such as ball, plug, and butterfly valves through a […]

INTRODUCTION Globe valve

Wednesday, April 30th, 2008

Flow control valve

A flow control valve regulates the flow or pressure of a fluid. Control valves normally respond to signals generated by independent devices such as flow meters or temperature gauges. Control valves are normally fitted with actuators and positioners. Pneumatically-actuated globe valves are widely used for control purposes in many industries, although quarter-turn […]

Control Valve Application THEORY Idea

Wednesday, April 30th, 2008

Gas valves

Gas valves are used to handle and control the flow of gaseous media such as liquefied petroleum and natural gas. They are made of metal or plastic and vary in terms of valve size, pressure rating, number of ports, and flow. Connection types consist of bolt flanges, clamp flanges, union connections, tube fittings, […]

Valvular heart disease

Wednesday, April 16th, 2008

Percutaneous valve replacement is not a new initiative, since the pioneer attempts to deliver catheter-based valves date back to the sixties. During the last few years, percutaneous heart valve (PHV) replacement and repair has emerged as an additional therapy to potentially avoid the reoperation in young patients with congenital heart disease or severely sick patients. […]

Friday, May 9, 2008

Control Valve Tutorial

Control Valve Tutorial

Schrader Valve

The Schrader Valve is a valve stem invented by August Schrader and is used on virtually all automobile tires and lower pressure bicycle tires. It is a poppet valve assisted by a spring. Schrader valves are also used on the fuel rail of some direct fuel injection engines and on some automotive air conditioning systems,

Solenoid valve

A solenoid valve is an electromechanical valve for use with liquid or gas controlled by running or stopping an electrical current through a solenoid, which is a coil of wire, thus changing the state of the valve. The operation of a solenoid valve is similar to that of a light switch, but typically controls the

Plumbing

Plumbing, from the Latin for lead (plumbum), is the skilled trade of working with pipes, tubing and plumbing fixtures for potable water systems and the drainage of waste. Plumbing originated during the ancient civilizations such as Roman, Persian, Indian, and Chinese civilizations as they developed public baths and needed to provide potable water, and drainage

Variable valve timing

Variable valve timing, or VVT, is a generic term for an automobile piston engine technology. VVT allows the lift or duration or timing (some or all) of the intake or exhaust valves (or both) to be changed while the engine is in operation. Two stroke engines use a Power valve system to get similar results

Zone valve construction and operation

Zone valves as used in home hydronic systems are usually electrically powered. In large commercial installations, vacuum or compressed air may be used instead. In either case, the motor is usually connected to the water valve via a mechanical coupling. For electrical zone valves, the motor is often a small shaded-pole synchronous motor combined with a

Video Games For 2007

In my view, the game industry never gets dull. There’s always something coming down the road that fans are going to appreciate. The new year will be no different in that respect. I’m expecting the PC games industry to bounce back big time in 2007. First we get Windows Vista with its built-in game organizer and

Engine Oil Drain Valve

One Touch Operation Reduces Oil Changing Time and Expenses Eliminates Stripped Thread No More Contact with Hot Oil No Messy Hands or Cloths Easy Installation Introducing the best way to change oil, the Engine Oil

Pressure Tap (Gas Vapor Steam or Liquid )

Pressure Tap For GasFor non-condensing gasses, tapping point should be made to the side or upper quadrant of the process line and fitted with a suitable process isolation valve, The pressure transducer (transmitter) should be positioned above the tapping point with its process connection downwards to allow any condensate

Valve positioners

Valve positioners compare a control signal to a valve actuator’s position and move the actuator accordingly. They are used with both linear valves and rotary valves. When a control signal differs from the valve actuator’s position, the valve positioner sends the necessary power to move the actuator until the correct position is reached. There are

Electrohydraulic valve actuators

Electrohydraulic valve actuators and hydraulic valve actuators convert fluid pressure into motion in response to a signal. They use an outside power source and receive signals that are measured in amperes, volts, or pressure. Some electrohydraulic valve actuators and hydraulic valve actuators move rotary motion valves such as ball, plug, and butterfly valves through a

Pneumatic valve actuators

Pneumatic valve actuators adjust valve position by converting air pressure into linear or rotary motion. Linear motion devices open and close gate, globe, diaphragm, pinch and angle-style valves with a sliding stem that controls the position of the closure element. Rotary motion devices move ball, plug and butterfly valves a quarter-turn (90°) or more from

Electric actuators

Electric actuators mount on valves which, in response to a signal, automatically move to a desired position using an outside power source. Single-phase or three-phase AC or DC motors drive a combination of gears to generate the desired torque level. There are two basic types of electric actuators: rotary and linear. Each type of actuator

Industrial valves

Industrial valves are classified in many different ways. They can be distinguished by material of construction, media handled, and/or application. Most industrial valves are made of metal or plastic materials. Metal valves are made of aluminum, brass, bronze, copper, cast iron, ductile iron, steel, or stainless steel. Plastic valves are made of acetal polymers, polyvinyl

Steam valves

Steam valves are used to control the flow and pressure level of steam and heated water vapor. They are usually made of aluminum, brass, bronze, cast iron, ductile iron, copper, steel, or stainless steel. There are several basic types of products. Angle valves position the inlet and outlet at 90° to provide maximum flow. Ball

Globe valves

Globe valves are linear motion valves with rounded bodies, from which their name is derived. They are widely used in industry to regulate fluid flow in both on/off and throttling service. Globe valves consist of the following moving parts – the disk, the valve stem, and the handwheel. The stem connects the handwheel and the

Positive displacement valves

Positive displacement valves are precision dispensing devices designed to provide precise fluid dispensation depending on applications. They function by opening quickly, releasing product, and closing again. This process may take place numerous times per second. Positive displacement valves use physical moving force to drive material out of the valve. They are typically used to dispense

Diaphragm valves

Single component diaphragm valves are designed to provide a precise fluid supply depending on the application. The dispensed output can be a bead, dot or fill. Material pressure upon the valve forces the diaphragm to allow material through the fluid body and out the dispensing tip. Applying air pressure to the top of the diaphragm

Hydraulic valves

Hydraulic valves contain and transfer the flow and pressure of hydraulic fluid in hydraulic power systems. They range from simple shutoff valves to precision control valves. Common types of hydraulic valves include angle, ball, block and bleed, check, control, cartridge, directional, drain, needle, poppet, pressure relief, safety, shut off, solenoid, spool, and stack mounted valves.

Proactive Control Valve Maintenance

Control Valve Application THEORY Idea

Gas valves

Gas valves are used to handle and control the flow of gaseous media such as liquefied petroleum and natural gas. They are made of metal or plastic and vary in terms of valve size, pressure rating, number of ports, and flow. Connection types consist of bolt flanges, clamp flanges, union connections, tube fittings, butt welds,

Air valves

Air valves allow metered flow of fluid in one or both directions. Many of them allow for free flow in one direction and reduced or metered flow in the reverse direction. They are used in pneumatic circuits to regulate the rate of activation or exhaust of cylinders and other pneumatic devices. Air valves can be

Control Valves

Control valves or proportional valves are power-operated devices used to modify fluid flow or pressure rate in a process system. Search by Specification | Learn more about Control Valves
Air Valves - (427 companies) Air valves allow metered fluid flow in one or both directions. They are used in pneumatic circuits to regulate

Control valves or proportional valves

Control valves or proportional valves are power-operated devices used to modify fluid flow or pressure rate in a process system. These valves are used throughout industry in many applications. Control valves types include globe, diaphragm, pinch, knife or gate, needle, butterfly, ball, and plug. Globe valves are linear motion valves with rounded bodies, from which

Control Valve Packing

Packing is a sealing system which normally consists of a deformable material such as TFE, graphite, asbestos, Kalrez, etc. Usually the material is in the form of solid or split rings contained in a packing box. Packing material is compressed to provide an effective pressure seal between the fluid in the valve body and the

Control Valve Repair Tips

1. If you are dealing with a corrosive fluid, choose the valve body and trim material to match the pump casing and impeller.
2. Velocity is the key to handling abrasive materials. Normal city water velocity is about 7 to 10 F.P.S. (clean liquid). If you have a fluid that is abrasive, keep the velocity as

Seat Leakage Classifications

Rule of Thumb:
There is no such thing as “Bubble Tight.”
Control valves are designed to throttle. However, this is not a perfect world, and control valves are also usually expected to provide some type of shut-off capability. A control valve’s ability to shut off has to do with many factors. The type of valves for instance.

Control Valve Flow Characteristics

Trim design will affect how the valve capacity changes as the valve moves through its complete travel. Because of the variation in trim design, many valves are not linear in nature. THE RELATIONSHIP BETWEEN VALVE CAPACITY AND VALVE TRAVEL IS KNOWN AS THE FLOW CHARACTERISTIC OF THE VALVE. Valve trims are specially designed, or characterized,

How Positioners Work

A valve Positioner is a device used to increase or decrease the air pressure operating the actuator until the valve stem reaches the position called for by the instrument controller.
Positioners are generally mounted on the side or top of the actuator. They are connected mechanically to the valve stem so that stem position can be

Control Valves Final Control Element

Control Valves Do What They Are Told!
Being the Final Control Element in a system is not an easy job. To start with, you are blamed for any and all problems that crop up in the process. You are subjected to corrosion, high velocity, cavitation, flashing liquids, cryogenic temperatures, high temperatures, abrasion, and thermal shock.

Metallic pressure containment vessels

INTRODUCTION.
1. Recent inspection programs for metallic pressure containment vessels and tanks have revealed cracking and damage in a considerable number of the vessels inspected. Safety and hazard evaluations of pressure vessels, as also presented in OSHA Instruction PUB 8-1.5, need to consider the consequences of a leakage or a rupture failure of a vessel.

HYDROSTATIC TESTING

This is the beginning of testing a cylinder for structural integrity. The red tank is a 90 cubic-foot, aluminum scuba cylinder . It has a working pressure of 3300 psi, the test pressure is 5500 psi.
After insuring the tank is empty, we remove the tank valve. The tank is then given a thorough visual inspection

Control Valve Function energy consumption

Disadvantages of this Technique High energy consumption applications are not applicable to this technique because the energy is limited at the source (or barrier). This technique is limited to low-energy applications such as DC circuits, electro-pneumatic converters, etc. Type n Technique: This technique allows for the incorporation of circuits in electrical instruments that are not capable of igniting specific flammable gases or vapor-in-air mixtures under normal operating conditions.

Control Valve Protection

Flameproof Technique: This technique is implemented by enclosing all electrical circuits in housing and conduits strong enough to contain any explosion or fires that may take place inside the apparatus.
Advantages of this Technique Users are familiar with this technique and understand its principles and applications. Sturdy housing designs provide protection to the internal components of the apparatus and allow their application in hazardous environments.

Slot between the control valve

Remove the valve cover to access the drive assembly.
Disconnect the power source plug (black wire) from the PC board prior to disconnecting the motor plug from the PC board. The
motor plug connects to the two-pin jack on the left-hand side of the PC board. The power source plug connects to the four-pin jack.

Bypass Valve

Bypass Valve
The bypass valve is typically used to isolate the control valve from the plumbing system�s water pressure in order to perform control valve repairs or maintenance. The WS1 bypass valve is particularly unique in the water treatment industry due to its versatility and state of the art design features. The 1� full flow bypass valve incorporates Drive Gear Cover The drive bracket holds the PC board, the motor, the drive gears and the drive gear cover in place. The PC board receives and retains information, displays the information, determines when to regenerate and initiates regeneration.

Control Valve Function

Control Valve Function and Cycles of Operation This glass filled Noryl1 fully automatic control valve is designed as the primary control center to direct and regulate all cycles of a water softener or filter. The time clock control valve can be set to perform downflow regeneration or simply backwash. The time clock control valve has two

Control Valve Material

General Information on Elastomer Materials BUNA “N” Buna “N” is commonly referred to as a nitrile rubber, and is ASCO’s standard synthetic elastomer for accomplishing resilient-type seating or sealing. It has excellent compatibility for most air, water and light oil applications. It has a useful temperature range of 0F. ( - 18°C.) to 180°E (82°C.).

Control valves CONTROLVALVE

Let’s face it. Control valves never make anyone’s top 10 list of favorite topics. Yet while they may be considered boring, control valves can impact your bottom line in ways you may not have considered.
A brief example illustrates why. Figure 1 documents control loop performance testing within a power plant and reveals how control valves can affect a process. The loop

Control Valve Leakage

On the surface, this whole subject can appear to be pretty simple. However, ensuring that control valves will shut off properly when installed and throughout their service life requires an understanding
of the physical principles behind shutoff. First, how much leakage can be permitted for a given control valve application? ANSI specifies six different leakage classes. A Class I valve

Proactive Control Valve Maintenance

So far, we’ve discussed how you need to make sure you consider more than just static performance when selecting control valves. But even if you do your homework and have selected the best
valve from an overall financial performance standpoint, how can you be sure the valve will sustain that performance over the life of the plant? This is where

Monitor your Control valves

Real Life Experience As you can see, the game has changed. Focusing on dynamic performance of a process control system by optimizing control valve performance can have a very positive impact on your O&M budget and your throughput. Utilizing modern digital equipment to monitor your valves and establishing a state-of-the-art maintenance program can further boost your bottom line. We’ll complete

INTRODUCTION valve

Flow control valve


A flow control valve regulates the flow or pressure of a fluid. Control valves normally respond to signals generated by independent devices such as flow meters or temperature gauges. Control valves are normally fitted with actuators and positioners. Pneumatically-actuated globe valves are widely used for control purposes in many industries, although quarter-turn types such as

Gate Valve or Sluice Valve

A Gate Valve, or Sluice Valve, as it is sometimes known, is a valve that opens by lifting a round or rectangular gate/wedge out of the path of the fluid. The distinct feature of a gate valve is the sealing surfaces between the gate and seats are planar. The gate faces can form a wedge

Choke valve

A choke valve is valve that lifts a solid cylinder (called a “plug” or “stem”) up and down which is placed around or inside another cylinder which has holes or slots. The design of a choke valve means fluids flowing through the cage are coming from all sides and that the streams of flow (through

Globe valve Description

Globe valves are named for their spherical body shape. The two halves of the valve body are separated by an internal baffle which has an opening forming a seat onto which a movable disc can be screwed in to close (or shut) the valve. In globe valves, the disc is connected to a stem which

eedle valve

A needle valve is a type of valve having a small orifice and a threaded, needle-like plunger. It allows precise regulation of flow, although it is generally used for, and is capable of, only relatively small flow rates. A needle valve has a relatively small orifice with a long, tapered, conical seat. A needle-shaped plunger, on …

pilot valve

A Pilot valve is a dead man’s switch which requires a human operator to hold it in the mid-position and take some action if the operator takes off pressure or applies full pressure. Often (especially in heavy rail applications) this type of fail-safe braking is provided with one foot and one hand control to reduce

Poppet valve

A poppet valve is a valve consisting of a hole, usually round or oval, and a tapered plug, usually a disk shape on the end of a shaft also called a valve stem. The shaft guides the plug portion by sliding through a valve guide. In most applications a pressure differential helps to seal the

Sleeve valve

The sleeve valve is a type of valve mechanism for internal combustion piston engines which have traditionally relied on the more common poppet valve.
A sleeve valve consists of one or more machined sleeves that fit within a piston engine’s cylinders and are designed so as to move so that their openings align with the cylinder’s

Reed valve

Reed valves consist of thin flexible metal or fiberglass strips fixed on one end that open and close upon changing pressures across opposite sides of the valve much like heart valves do. They are intended to restrict flow to a single direction. Reed valves are commonly used in two-stroke engines to control the fuel-air mixture that

Rotary valve

A rotary valve is a type of valve in which the rotation of a passage or passages in a transverse plug regulates the flow of liquid or gas through the attached pipes. The common stopcock is the simplest form of rotary valve. Rotary valves have been applied in numerous applications, including:

Piston valve

A piston valve is a device used to control the motion of a fluid along a tube or pipe by means of the linear motion of a piston within a chamber or cylinder.
Examples of piston valves are: The valves used in the valve gear of many stationary steam engines and most steam locomotives.

Saddle valve

A saddle valve is a valve used to supply liquid where a low volume, low pressure stream is required. The name is derived from the fact that it is mounted in such a way that it “saddles” the line, mounting it from both sides. They are typically used for suppling cold water, via a 3/8 in.

Safety valve

A safety valve is a valve mechanism for the automatic release of a gas from a boiler, pressure vessel, or other system when the pressure or temperature exceeds preset limits. They are often called by more specific names such as pressure relief valves, T&P valves, or temperature and pressure relief valves.afety valves were first used

Relief valve


The relief valve is a type of valve used to control or limit the pressure in a system which can build up by a process upset, intrument or equipment failure or fire, by allowing the pressurised fluid to flow from an auxiliary passage out of the pressure vessel. The relief valve is designed or set