Flanged Pressure Seal Check Valve

GZP Swing check valves are manufactured to the latest edition of API 600/ASME B 16.34 and tested to API 598

Classify：

Swing Check Valve

型号：

1051801403694866432

keyword：

Consult immediately

Product details

Introduction video of Swing Check Valve :

GZP Swing check valves are manufactured to the latest edition of API 600/ASME B 16.34 and tested to API 598.All valves from GZP VALVE are strictly 100%tested before shipment to guarantee zero leakage.

Swing check valve is a valve that normally allows fluid (liquid or gas) to flow through it in only one direction and prevent the flow in the opposite direction. They are widely applied in petroleum, chemical, food, medicine, textile, power, marine, metallurgy, energy systems, etc

The disc of swing check valves is round-shaped; it makes rotary movements along the shaft's central line acted by the fluid pressure,the fluid flows from the inlet side to the outlet side. When the inlet pressure is lower than the outlet pressure, its disc can close automatically due to factors like fluid pressure difference and deadweight to prevent the fluid from flowing back;

The main construction features of GZP Swing check valve are following:
1.Built-in trim structure design
GZP check valve adopts a built-in structure. The valve disc and hinge arm are both inside its inner chamber, thus having no impact on its flow and reducing its leakage points;
2.Integral forged or rolled body seat or seat welded and overlaid in kinds of material
Welded overlay are strictly according to approved WPS procedures. After welding and all required heat treating, the seat ring faces are machined, thoroughly cleaned and inspected before leaving for assembly.
3.The large size is provided with a lifting ring for lifting, thus easier for installation; Swing check valves can be installed in either horizontal or vertical direction.

Technical Data
Design Standard	API6D, BS1868, DIN3356,EN10739
Body Material	Carbon Steel, Stainless Steel, Alloy Steel, Duplex Steel.etc.
Body Material	NACE MR-01-75/NACE MR-01-03 Special Requirements
Pressures range	ANSI 150 ~ANSI 2500 ,PN10~PN420
Size range	DN50(2") ~DN1200 (48")
Face to Face	ANSI B16.10,EN 558,DIN3202
Flanged RF, FF, RTJ Ends	ASME B16.5 ≤ DN600 (24") ASME B16.47 A ≥ DN650 (26")
Flanged RF, FF, RTJ Ends	BS 4504,DIN 2543-2545,EN1092
Butt-Weld BW Ends	ASME B16.25 ,DIN 3239,BS 2080, EN 12627
Temperature range	-29°~ 425°C
Design Feature
Construction	Lift type, Swing type,Wafer type,Pressure seal bonnet,Bolted Bonnet
Disc Type	Dual plate, single plate, plug type
Seat Sealing	Integral body seat ,seat welded and overlaid
Fire Safe Design	API 607,BS 6755
Inspection & Test
Visual Inspection	MSS SP-55
Material Inspection	PMI Test----Chemical Analysis
	HB Test---Hardness Test
	UT---Ultrasonic Test
	RT---RadiographicTest
	MT---Magnetic Test
	NDT Test Non-destructive
Dimention inspcetion	According to drawings
Valve Inspection and Test	API 598,DIN 3230,EN 12266,BS 5146

Plug type check valve

Cast Steel check valve

Plug type check valve

Cast Steel check valve