Swash plate type non-impact check valve

“Swash plate check valve” generally refers to tilting disc swing check valve.

Chinese name: PXH44H-150LB swash plate type non-impact check valve

Structure length: ASME B16.10
Product design press: ASME B16.34
Inspection and testing: API 598

PXH44H-150LB swash plate type non-impact check valve details:

1. Product overview:

It is a new type of check valve developed by combining our company’s many years of valve production technology with foreign advanced product design and development. Its main advantage is to overcome the impact and water hammer caused by the swing check valve and the lift type upper return valve under working conditions. Phenomenon, to achieve no impact operation.

2. Design specifications:

Flange size according to: ASME B16.5 GB HG SH

Pressure rating: Class 150, 300, 600 PN 2.0, 5.0, 10.0 MPa

3. Structural features:

The double eccentric valve flap gradually contacts the sealing surface when it is closed, so that it can work without impact and noise.

Micro-elastic metal seat with good sealing performance.

Butterfly valve disc design, fast, sensitive and long service life.

The swash plate structure makes the fluid channel streamlined, with low flow resistance and energy saving effect.

4. Materials for main parts:

code	valve body	valve flap	valve sealing/seat
P	CF8	CF8+STL	0Cr19Ni9	PTFE
R	CF8M	CF8M+STL	0Cr17Ni12Mo2
K	CF3	CF3+STL	00Cr19Ni11
J	CF3M	CF3M+STL	00Cr17Ni14Mo2
E	CN7M	CN7M+STL	20 alloy
C	WCB	WCB+13Cr	0Cr19Ni9
D	LCB	CF8+STL	0Cr19Ni9

5. Main properties:

Items	normal swing check valve	swash plate type non-impact check valve
Closing force	big	small（about 1/5～1/8 of the former）
compact force	big	None
sealing  performance	as per API 598, leakages allowed	can realize no leakage
flow resistance	big（ξ=1.3～2.5）	small（ξ=0.18～0.6）
flow ability	small(Cv=76)	big(Cv=154～333)
weight	big	small（about 80% of former）

Related news /knowledge:
Current status and development of Chinese valves;
Classification of check valves;
What is double plate swing check valve;
Wafer type double disc swing check valve introduction;