CHECK VALVE SWING TYPE SINGLE DISC DUCTILE IRON DN50- DN400

CHECK VALVE SWING TYPE SINGLE DISC DUCTILE IRON DN50- DN400

Ref Price:: $20.00 - 200.00 / pc

Loading Port:: Tianjin

Payment Terms:: TT or LC

Min Order Qty:: 1 pc

Supply Capability:: 9999 pc/month

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Quick Details

Standard or Nonstandard:	Standard	Structure:	Check	Pressure:	Medium Pressure
Power:	Hydraulic	Material:	Casting	Temperature of Media:	Medium Temperature
Media:	Water	Port Size:	DN50-400	Place of Origin:	China (Mainland)
Model Number:	H76X	Brand Name:	CMAX	Application:	General
Name:	Single disc wafer type check valve	Standard:	API,DIN,JIS,BS,	Medium:	wafer,oil,gas,Acid,alkali
Valve body material:	cast iron,Stainless steel,brass	Size:	2"~16" or DN50~DN400	Advantage:	no leakage

Packaging & Delivery

Packaging Details:

Veneer board boxes

Name:Wafer type check valve,single door check valve,wafer type swing check valve.

Valve body:cast iron ,GG25,GGG40,CF8M

1.Working pressure:1.6Mpa

2.Testing :API598 DIN3230

3.Flange standard

DIN2501 PN10/16

BS4504 PN10/16

BS10 TABLE "D"/"E"

JIS2220 10K/16K

ANSI125/150

4.Face to face

ANSI125/150

DIN3203 K3-1999

Technical Date		Material Specification
Nominal Diameter	DN40-DN1000	Valve Body	Cast Iron or Ductile Iron
Nominal Pressure	PN10/PN16	Valve Disc	Cast Iron or Ductile Iron or Stainless Steel
Operation Temperature	-40°C~225°C
Flange Driling Standard	EN 1902-2 PN10/16	Seal Material	EPDM OR NBR
Suface Treatment	Painting	Valve Spring	Stainless Steel

CHECK VALVE SWING TYPE SINGLE DISC DUCTILE IRON DN50- DN400

Q:The working principle of the vacuum check valve: A vacuum check valve is a valve that automatically prevents fluid from flowing back. The disc of the check valve is opened under the action of fluid pressure, and the fluid flows from the inlet side to the outlet side. When the inlet side pressure is lower than the exit side, the valve automatically closes under the influence of fluid pressure, gravity and other factors to prevent fluid flow backwards.Vacuum check valve according to the structure, can be divided into lifting check valve, swing check valve and butterfly check valve three.

Q:Which type of check valve should be selected for vertical pipes?: The check valve on the vertical pipeline shall ensure that the spool goes back to its position when the fluid is stationary and reversed.Optional:Butterfly check valves, pipes of low pressureVertical lift check valve, high pressure resistance, good tightnessSwing check valve: flow must be from the next up, the pipe diameter is unlimited

Q:The principle of the check valve: The function of the check valve is to allow the medium to flow in one direction only, and to prevent the flow in the opposite direction

Q:Does the regulator have a check action? If yes, can I use it as a check valve?: The regulating valve is to adjust the pressure, and the check valve is to prevent the backflow of fluid.Clear division of labor, non-interference in each other.Even if some special pressure regulating valve has a non-return function, it can not be used as check valve.It is recommended to install a check valve on the pipe to make sure it is safe.Hope to be of help to you!

Q:Is it necessary to install a check valve in the piston refrigeration compressor?: To solve this problem, we first need to know the working cycle of the piston compressor:1, compression process, suction valve closed, refrigerant gas in the cylinder from low pressure to high pressure process;2 the exhaust process, compression end, from the cylinder through the exhaust valve to exhaust pipe process;3, expansion process, exhaust end, exhaust valve closed, the piston from the bottom of the cylinder moving to the top of the cylinder process;4 suction process, suction valve opens, low-pressure refrigerant gas inhalation process of the cylinder;From the above piston engines don't seem to need what steps to open check valve. Because the suction valve and exhaust valve on the cylinder are constantly switching each other, the piston machine continues to inhale and exhaust the process. If only from the piston machine, there is no need to install a check valve.But to consider the whole refrigeration system, rather than a simple piston compressor, when the piston of more than 2 units must be horizontal pipeline in a single compressor exhaust pipe to the exhaust duct installed on the check valve and pipe installation is about

Q:The check valve on the air pipe is installed in front of the fan and is there any difference in the back (direction is correct)?: Installed in front of the wind blowing, the top open check valveIt is difficult to install the check valve, which is installed on the rear by the force of air suction.

Q:What is the HH44X-16 H of the double acting slow closing check valve? Can you explain it in detail?: 1. The first H is the meaning of the check valve (the first letter of the Chinese phonetic alphabet). The second H is the meaning of "slow closing" (the first letter of the Chinese phonetic alphabet).

Q:Standard and specification for stop check valves: Design and manufacture: GB12235 structure length: GB12221Pressure temperature range: GB9131, JB/T74, HG20604Connection flange: JB/T79, GB9113, HG20592Test and test: JB/T9092, GB13927

Q:What are the brands of check valves?: Also known as check valve, one-way valve, counter flow valve, and back pressure valve. The check valve belongs to an automatic valve, whose main function is to prevent the backflow of medium, prevent the reverse of pump and drive motor, and release the container medium.

Q:Circulating water check valve, I want to ask is not greater than DN600, you can use HBH747H hydraulic butterfly valve closed butterfly valve, less than DN600 of HD43X slow butterfly butterfly check valve, what does hydraulic check mean? Need hydraulic?: The opening and closing parts depend on the flow of the medium and the power is turned on or off by itself. The valve that prevents the backflow of the medium is called a check valveThis hydraulic pressure refers to the liquid pressure in the pipeline, not another pressure; the big caliber butterfly valves are small, and the small ones are all one-way valves. Another HB-HV hydraulic check valve, which is used on the oil circuit, the module and the operation circuit, you do not need.

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