Support

Fire safe ball Valves have the ability to maintain their pressure holding capacity during and after exposure to fire. ...

An anti-static device used in a ball valve is to reduce the static charge generated on the ball due to friction. It is used to protect the valve against a spark that may ignite the fuel flowing through it. ...

Ball valves are designed with a stem anti-blow-out device to prevent stem ejection by internal pressure when the stem packing and/or retainer has been removed. ...

API RP 615 provides general guidance on valve selection for the hydrocarbon processing industry (HPI), which includes refineries and petrochemical, chemical, and liquefied natural gas (LNG) plants and their various associated processes. ...

Minimum Bore Sizes for Full-opening Valves, Reduced-opening Valves with Circular Opening, Non-standard Opening Valves in API 6D latest edition. ...

The ball torque value for sizes from 1/2" to 36", Class 150 to 2500, including floating and trunnion mounted ball valves. ...

EN 12266-1 Standard specifies requirements for tests, test procedures, and acceptance criteria for production testing of industrial valves made of metallic materials. ...

Double block and bleed valves are single valves with two seating surfaces that, in the closed position, provide a seal against pressure from both ends of the valve with a means of venting/bleeding the cavity between the seating surfaces. ...

API 6D Pressure test requirements inluding test procedure, test pressure and durating for gate, ball, check and plug valves. ...

According to the ball valve body construction, ball valves can often be divided into side-entry ball valves, top-entry ball valves, and fully welded ball valves. ...

Seat, seal, and gasket material selection guide for ball valves, including application fluid, temperature range, and pressure range, etc. ...

The sealant injection provides a secondary and emergency seal to the stem and/or seat area of a ball valve by means of a suitable facility when soft sealing rings are damaged (seat inserts and o-rings) by accident. ...

Automatic cavity pressure relief is provided to relieve the trapped fluid into the internal pipeline, when the pressure of the trapped fluid goes up abnormally as the unstable factor. ...

Quarter-turn valves require a quarter rotation to fully open or close the valve. They are rapid to open and close. Types: ball, plug and butterfly valves. ...

According to valve end connection types, valves may be classified as: flanged end valves; welded end valves; threaded end valves; and hub end valves. ...

Relia ball valves are manufactured in accordance with API, ANSI, ASME and BS standards. Specifications for ball valves of design, fire-safe testing, wall thickness, testing, end connections, inspection and numerous other associated requirements. ...

ASTM A105/A105M specification covers forged carbon steel piping components for ambient- and higher-temperature service in pressure systems. Included are flanges, fittings, valves, and similar parts ordered. ...

A352/A352M specification covers steel castings for valves, flanges, fittings, and other pressure-containing parts intended primarily for low-temperature service. ...

ASTM A351 covers austenitic steel castings for valves, flanges, fittings, and other pressure-containing parts. ...

ASTM A217/A217M specification covers martensitic stainless steel and alloy steel castings for valves, flanges, fittings, and other pressure-containing parts intended primarily for high-temperature and corrosive service. ...

MSS SP-91 Standard Practice provides guidelines for the operation of manually actuated valves as affected by the valve operator’s input. ...

API RP 591 provides recommendations for evaluation of a manufacturer’s valve construction and quality management system for the purpose of determining a manufacturer’s capability to provide new valves manufactured in accordance with the applicable st ...

API RECOMMENDED PRACTICE 621 provides guidelines for reconditioning heavy wall (API 600, API 623, and API 594 type) carbon steel, ferritic alloy (up to 9 % Cr), stainless steel, and nickel alloy gate, globe, and check valves for ASME pressure classes ...

BS 1414 Standard specifies requirements for cast or forged carbon and alloy steel outside screw and yoke, solid wedge (plain or flexible) rising stem gate valves. ...