Unless the code governing what you do dis-allows it, or the requirement is for seamless pipe only, the two are interchangeable. As an example, the company I work for is a distributor of steel pipe, flanges and fittings. When we order pipe of this type, we order it “quad stencilled”, […]
Read More →Static electricity is experienced during seasons when the air is dry. The crackle sound that occurs when removing a sweater is from the static electricity generated by friction between clothing materials. Similarly, the slight pain sensation experienced when touching a door knob after walking on carpet is due to […]
Read More →Index 1.0 Valve Design 2.0 Body Design 3.0 Trim Design 4.0 Valve Actuation 5.0 Choke Valve Data Sheet 1.0 Valve Design Design methodology, qualification and performance verification for production chokes is covered by the API specification 6A (ISO 10423) for surface equipment and API 17D for subsea equipment. These […]
Read More →The globe valves, unlike the gate valves, allow the fluid to be regulated or controlled at the same time that they isolate the line. They have a movable disk-type element and a stationary ring seat in a spherical body. Their spherical body shape is divided in two halves, separated by an […]
Read More →Double Offset, High Performance , High Pressure, High Temperature, Zero Leakage Butterfly Valves [A] STEM: The high-strength, one piece stem is 17-4 PH Stainless Steel. The valve stem is standardized for interchangeability of Bray actuators. [B] BLOW-OUT PROOF STEM: A retaining ring is installed between the machined stem groove […]
Read More →Abbreviations and Terminology: FC: Fail closed FL : Fail locked FO : Fail open MOV: Motor Operated Valve PRV : Pressure Relief Valve PSV : Pressure Safety Valve SOV : Solenoid Operated Valve Armature: Part of an electric machine that strengthens magnetic fields. Bonnet: Removable cover giving access to valve […]
Read More →It is maximum allowable torque a stem of a quarter turn valve can be subjected to without mechanical failure. Engineering unit Nm OR lb-in During valve operation, torque delivered by actuator (Pneumatic or electric) at any stage, should not exceed MAST value. If it happens stem may be subjected to […]
Read More →Design acc.to API 6D, DIN3357Face-to-Face acc. to ASME B16.10Flange acc. to ASME B16.5, DIN EN1092Butt Weld acc. to ASME B16.25Test acc. to API 598, DIN3230Fire Proof acc. to API607Anti-H2S acc. to NACE MR-0175Size from 2” to 42”,Pressure from 150LB to 2500LB,PN16 to PN320We cover the following range of exotic alloys […]
Read More →cryogenic valves, please consider following points:- Body(Austenitic SS) and trim material selection(Austenitic SS) Soft seat(PCTFE) and seal(Lip seals-PTFE+SS/Elgiloy) material for the ball valves. Material of seal ring(Solid seal ring is generally selected) for triple offset butterfly valves Extended Bonnet requirement for the valves to protect the valve packing from freezing. […]
Read More →Generally A105 and 234 can be welded to X42. Over that you should spec WPH Y Grades matching your pipe. Such as X52 to WPH Y52, X60 to WPH Y60, etc. Source: Pipelines, Piping and Fluid Mechanics engineering – Eng-Tips
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