check valve pdf

The DUAL PLATE WAFER CHECK valve LUG type covers the bolt along the entire length of the body. LUG type valves are supplied in scallop to keep the weight as low as possible, thereby minimizing the cost. LUG type valves are supplied with straight-through bores according to API-594. Note: 1. For more information contact the company.

Check Valve BS 1868* API 603 Gate Valve API 603 ASME B16.34 Gate, Globe, Check Valves ASME B16.34 ASME B16.34 Face-to-face / End-to-end dimension ASME B16.10 End Flange dimensions ASME B16.5** Butt-weld End dimensions ASME B16.25 Valve Inspection & Testing API 600, API 598, BS 6755 Part I 20 L&T Cryogenic Valves L&T Cryogenic Gate & Globe Valves

ZRK-ZRKF-swing check valves are designed to block media on one side of the pipe within allowable pressure and temperature limits (see data sheet) and to be installed in a pipe system only. They are only to be used with media, which the material and the seals are resistant to. They are not suitable for media with solid components.

Check to see that all valve joints and pressure containing bolts are tight. Leave the valve exposed while the pipeline is being pressurized. Rel.6/18/ Page 4 KENNEDY VALVE Plant and Industrial Group 1021 East Water Street Elmira, New York 14901 Telephone (607) 734-2211 Fax (607) 734-3288 CHECK VALVE RECOMMENDED STORAGE AND HANDLING

Parker C Series Check Valves are designed for uni-directional flow control of fluids and gases in industries such as chemical processing, oil and gas production and transmission, pharmaceutical, pulp and paper, power and utilities. Flow Calculations with 1000 psig (69 bar) Inlet Pressure Valve Series Maximum C V Pressure Drop

Ball Check Valves are simple and compact and commonly used on small water or wastewater pumps where economy is important. A Ball Check. Valve consists of a 

Swing Check Valves Description: Bolted cover check valves Swing type Non-return BS1868 API6D ASME B16.34 API600 Design Standards: Wall Thickness: Face to Face: End Connection: ANSI B16.10 Raised face Ring type joint ANSI B16.5 ASME B16.47 series A or B BS4504 PN16, 25, 40, 64, etc

Series C check valves permit free flow in one direction, and dependable shut-off in the reverse direction. Operation When pressure going through the valve is increased to the cracking level, the valve opens. When the pressure is reduced to below the cracking level, the valve closes. Features • Stainless steel poppets standard.

Dual plate Check valves require correct positioning of the closure element to seal properly. Operation Mechanism The Dual plate check valve has two semicircular D-shaped closure plates (2) loaded with torsion spring (5) and hinged on a central hinge pin (3) such that they can swivel freely about the axis of the hinge pin.

Right Angle Check Valves These valves allow free flow in one direction and prevent flow in the reverse direction. Cracking pressure specified is the pressure required to open the valve and allow free flow. Specifications Model Number Designation Model Numbers Rated Flow * L/min Max. Operating Press. Kgf/cm 2 Cracking Pres. Kgf/cm 2 Mass Kg

The “flapperless” design is gentle on the seat as the piston rises and lowers with increased and decreased flow rates. SCV Dual Plate Check Valve design