Double Flange Type Double Disc Swing Check Valve Double
Flange Type Double Disc Swing Check Valve belong to short type
check valve, mainly used in water, steam, oil, chemical fluid,
compound fluid and other pipelines, can effectively prevent medium
fluid flow back; Compared with the traditional H44 flange swing
check valve has the advantages of small size, light weight, quick
switch, reliable sealing, convenient installation, long service
life and so on. Specifications:Size: 2" to
80",DN50-DN2000Class: 150LB to
2500LB,PN16-PN420Type: Double disc,double flanged
typeMaterial: C95800, WCB, WCC, WC6, WC9, C5, C12, CF8, CF8M,
CF3, CF3M, CN7M, LCB, LCC, DUPLEX SS, C95800,C95500,C63200,MONEL,
ALLOY 20 etcsurge pressure: water hammer pressure is very
small, the disc stroke is short, and auxiliary spring open and
close;Flow resistance: the valve flow resistance is small,
flow resistance coefficient is 2.6-0.7, the larger the diameter,
the smaller the flow resistance;High temperature: 450 ºC.Use
fixed number of year: top 10 years;Applicable
medium: water, steam, oil, chemical fluid, composite fluid,
etc. Feature:1. High working pressure: all kinds of
materials can reach 1.0mpa respectively at normal temperature.2,
wide operating temperature: PPR operating temperature is
-20ºC~+70ºC; The operating temperature of PP is
-20ºC~+95ºCC; The operating temperature of GFRPP is
-20ºC~+120ºC.3, good impact resistance: PPR, GFRPP has high
mechanical strength and impact resistance.4, liquid flow resistance
is small: the inner wall of the product is smooth, the friction
coefficient is small, and the transmission efficiency is high.5,
excellent chemical performance: this product non-toxic, tasteless,
acid and alkali resistance, corrosion resistance, wide range of
use. PPR is mainly used for food, beverage, tap water,
purified water and other liquid pipes and equipment with health
requirements, can also be used for corrosive small liquid pipes and
equipment; PP, GFRPP is mainly used for corrosive strong acid,
strong alkali and mixed acid liquid (gas) circulation.6, easy
installation, good sealing: this product is light in weight, using
bonding or welding, complete pipe fittings, simple construction,
good sealing, small labor intensity. Installation
Precautions:1. Do not make the check valve bear weight in the
pipeline. The large check valve should be supported independently,
so that it is not affected by the pressure produced by the pipe
system.2, installation should pay attention to the medium flow
direction should be marked with the direction of the arrow valve3,
swing check valve should be installed in vertical pipeline
operation, but also installed in horizontal pipeline.4, lifting
check valve should be installed in the horizontal pipeline
operation.About this productH46H/H46W/H46X-10-40C/P/R. INSPECTIONWe
welcome all the world customers to contact us for more
cooperation.With our years of technical knowledge and experience,we
assure you,Naibang will be one of your best parters in China.
Design and manufactureAPI594,API 6D,JB/TB8937Face to face and end to endAPI594,API6D,DIN3202,JB/T8937;Pressure-temperature ratingASME B16.34,DIN2410,GB/T9124,HG20625,SH3406,JB/T74Inspection and testAPI598,JB/T9092;Pipe flangeJB/T74~90,JB/T9112-9124,HG20592~20635,SH3406,ASME B16.5,DIN2543~2548,GB/T13402,API605,ASME B16.47.
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