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CWP: Cold Working Pressure: This designates the maximum non-shock pressure a product can operate at. “Cold” is generally defined as a range between -20°F to 100°F. WOG: Water, Oil and Gas: This was an older, generic pressure rating call-out which has been largely replaced by CWP (see above).
What does CWP stand for on ball valve?
CWP & WOG Ratings Cold working pressure (CWP) indicates the valve’s maximum pressure rating at temperatures between -20°F to 100°F. This is commonly referenced alongside the valve’s pressure rating. For example, 720 CWP indicates the valve is rated to 720 PSI within the CWP temperature range.
What does 600 CWP stand for?
CWP stands for Cold Working Pressure and is an indication of the pressure rating for valves at a temperature up to 100°F. The number represents the pressure rating, ie a 600 with CWP under it would mean the valve is rated to 600 PSI CWP.
What is PE ball valve?
PE ball valves are pressure rated up to 16 bar for water applications and 10 bar for gas applications. Depending on the requested pressure rating, the valves are available with SDR11 or SDR17. 6 spigot ends. CERTUS PE Ball Valves. Sizes range from d20 – 180mm.
What is WSP rating?
The Steam Working Pressure (SWP) rating, sometimes known as Working Steam Pressure (WSP), indicates the maximum allowable pressure from hot, vaporized water.
What is 150 psi SWP?
Both IPS and CXC valves are rated at 600 PSI non-shock CWP (Cold Water Pressure) and 150 PSI SWP (Steam Working Pressure). Matco-Norca supplies a full range of ball valves for plumbing applications. The company also has an extensive number of plumbing specialty products that are lead free compliant.
What is valve pressure rating?
Valves are also rated by the CWP rating. This rating represents the maximum allowable working pressure at the ambient temperature to which the valve may be subjected in normal service. Sometimes it is referred to as cold rating. The pressure rating of a valve at —20 to 100°F (—29 to 38°C), as listed in ASME B16.
What is a globe valve?
A globe valve regulates flow in a pipeline. It is used to control or stop the flow of liquid or gas through a pipe. Globe valves are named for their spherical body shape with the two halves of the body being separated by an internal baffle. Globe valves are also known as throttle valves.
How much pressure can a ball valve hold?
The ball valve’s ease of operation, repair, and versatility lend it to extensive industrial use, supporting pressures up to 1,000 bar (100 MPa; 15,000 psi) and temperatures up to 752 °F (400 °C), depending on design and materials used. Sizes typically range from 0.2 to 48 inches (5.1 to 1,219.2 mm).
Can you use a ball valve for gas?
Residential and commercial properties rely on gas ball valves to deliver liquefied petroleum gas (LPG), natural gas, manufactured gas, and gas/air mixtures to gas equipment and appliances. Gas appliances such as boilers, water heaters, furnaces, fireplaces, and gas stoves also commonly rely on a ball valve.
What do the numbers on valves mean?
If two or more letters follow the first letter, the valve contains more than one section in a single envelope (e.g. the ECH35 is a triode hexode). The first digit of the number following the letters shows the type of base but the second digit is merely a sequential number which is given to distinguish between valves.
Can a brass gas valve be used for water?
Most gas valves are brass and heavier than standard valves. It’s better to use a gas valve for water than it is to use a gas valve for gas.
What is non shock cold working pressure?
CWP Cold working pressure – the maximum allowable pressure under non- shock conditions at ambient temperature ( -20° F to +100° F).
Are ball valves directional?
Most ball valves are bidirectional and feature two fixed or floating seats on the upstream and downstream sides of the valve. The double-seated ball valve creates a tight seal when closed with minimal pressure drop.
What is the abbreviation for valve?
Valve Abbreviations Abbreviation Type of Valve Abbreviation IBBM Iron Body Bronze Mounted TC IPS Iron Pipe Size SWP ISRS Inside Screw RS UB GV Gate Valve UC.
What is a sluice gate valve?
Sluice gates are true end of line valves, designed to hold back water with minimal leakage in applications ranging from drainage pipes to effluent ponds to distributor boxes.
What pressure rating is 600 ANSI?
ANSI FLANGE ASTM A105, A350 Gr. LF2/LF6 Class 1 ANSI/ASME B16.34 ANSI PRESSURE RATING 600 140 2840 650 125 2745 700 110 2655 750 95 2535.
How do you determine valve pressure rating?
Temperature is the final key to determining the pressure rating of valve flange. Because metals are weaker at higher temperatures, high pressure ratings correspond with lower temperatures.
What is a Class 125 valve?
In terms of drilling and flange O.D. 125 class is the same as 150 class and 250 class if the same as 300 class. 1 Class 125 flange is rated for 125 psi at 353ºF (178ºC), which is the boiling temperature for water at that pressure. As temperature increases, the pressure rating of the flange decreases.
What is meant by butterfly valve?
Definition of butterfly valve 1 : a valve consisting of two semicircular clappers hinged to a cross rib that permits fluid flow in only one direction. 2 : a damper or valve in a pipe consisting of a disk turning on a bisecting axis.
What is swing check valve?
In swing check valves, a flapper will swing away to allow forward flow of a fluid or gas. When it is time to stop the flow, the flapper will swing back onto the seat, closing the valve automatically as the system pressure decreases. Swing check valves are notable due to their large flow capacity.
What valve is best for throttling?
Among the most common valves, the butterfly valve is the most suitable for throttling. A full quarter turn can open or close the valve.
