The Swing Check Valve has a flat disc that pivots or swings about a hinge pin. They are low cost, and have low head loss characteristics when fully open. But because of the long stroke and inertia of the disc, the traditional swing check valve may slam in vertical pipe installations. These valves are therefore sometimes outfitted with a lever and weight accessory. They can handle liquids with solids such as waste water.
Model No. :H44W
Material:stainless steel
Connection form:flange
Usage:flow control
Seal:Swing dics
Standard: ANSI,GB
Design Features
1.Design standard as per: BS1868,ASME B16.34, GB/T 12236.
2.Compact and reasonable product structure, reliable tightness and good performance;
3.Smooth fluid passageway and small fluid resistance;
4.Swing type disc.
5.Can be designed with a Damping Cylinder.
6.Rapid closing and flexible actions of the valve disc .
7.Small closing impact, water hammer is not liable to be generated.
8.Smooth fluid passageway and small fluid resistance.
Product Range
1.Body material: carbon steel, stainless steel, alloy steel
2.Nominal diameter: 1/2"~40"(DN15~DN1000)
3.Pressure range:Class150~2500(PN10~PN420)
4.End connection: RF, RTJ, BW
5.Working temperature:-196oC~+560oC
Execution Standard
Product specificationDesign specFace to faceFlangedPressure-tempTest&check
API6D/BS1868ASME B16.10ASME B16.5ASME B16.34API598
Performance Specification
Nominal pressure(LB)150300600900
Strength testMPa3.17.815.323.1
Lbf/in150112522253350
Water seal testMPa2.25.611.216.8
Lbf/in31581516302440
Air seal testMPa0.5~0.7
Lbf/in60~100
Main External and Connecting Dimensions
Unit:mm
NPSLDD1D2BZ-dH
2鈥?/p>203150120.792.114.34-19144
2-1/2鈥?/p>216180139.7104.815.94-19150
3鈥?/p>241190152.412717.54-19210
4鈥?/p>292230190.5157.222.38-19217
5鈥?/p>330255215.9185.722.38-22.5235
6鈥?/p>356280241.321623.98-22.5305
8鈥?/p>495345298.5270278-22.5370China Check Valve factory
website:http://www.zjxhvalve.com/check-valve/