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CHECK VALVES

INDUSTRIAL VALVES

INSTRUMENTATION
VALVE AUTOMATION
   Swing check Valve
 

Special Features :Check Valve is a Mechanical device, a valve that normally allows a fluid to flow through it in only one direction. Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in wide variety of applications. Although they are aviliable in a wide range of sizes and costs, many check valves are very small and simple/ or cheap. Check Valves work autometically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves or made of metal

An important Concept in check valves is the cracking pressure which is the minimum upstream pressure at which the valve will operate. Typically the check valve ia designed for and can therefore be specified fpr spacific cracking pressure

CHECK VALVES - STEEL BOLTED COVER SWING TYPE
CHECK VALVES - STEEL PRESSURE SEAL COVER SWING TYPE
CHECK VALVES - WAFER
CHECK VALVES - DUAL PLATE
CHECK VALVES - NON SLAM
CHECK VALVES - FLAP TYPE

 
Technical Spicification
Techinical Data

MANUFACTRING STRANDARD: BS 1868
FACE TO FACE, END TO END: ANSI B16.10
END CONNECTION: FLANGED END TO ANSI B 16 5 RF 15D#
BUN WILD END TO ANSI B 16 25
INSPECTION AND TESTING STANDARD-BS 6755(PORT-1)

 
AVAILABLE SIZE
150# 300# 600# 900# 1500# 2500# PN 16/40
1'-16'NB 1'-12'NB 11/2'-12'NB 21/2'-12'NB 21/2'-12'NB 2'-8'NB 1/2'-16'NB
 
P NO Qty Nomenclature Mote rial
1 1 BODY ASTM A216 Gr WCB
2 1 COVER ASTM A216 Gr. WCB
3 1 MINCE ASTM A216 Gr. WCB
4 1 SEAT RING ASTM A217 Gr. CA15
5 1 WSK ASTM A217 Gr.CA15/ASTM A216 Gr.WCB+13CRFACING
6 2 DISK RETAINING NUTS CARBON STEEL BS 916
7 1 CMSK WASHER CARBON STEEL
8 1 HINGE PIN 13Cr. STEEL TO AISI 410
9 1 COVER GASKET ASBESTOS TILLERSS 304 SPIRAL WOUNDED
10 Req COVER STUDS ASTM A 193 GR. B7
11 Req COVER NUTS ASTM A 194 GR. 2H
 
PRESSURE
HYDROSTATIC
TEST SHELL
VALVE CLOSURE
TEST (FLUID)
150# 300# 600# 900# 1500# 2500# PN 16/40
425 1100 2715 3250 5400 9275 24/60
PSIG PSIG PSIG PSIG PSIG PSIG Kgcm3/PSIG
300 800 1600 2400 4000 6790 16/40kg/cm3
PSIG PSIG PSIG PSIG PSIG PSIG PSIG
 

 

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