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: Check valve symbols?: Check valve refers to rely on the flow of the media itself and automatically open and close the valve flap, used to prevent media backflow valve, 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.The opening and closing parts depend on the flow of the medium and the power is turned on or off by itself.

Q: Check valve note BC/PISTON: SPR-L what does that mean?: BC==Bolted Cover/ bolted bonnetPISTON== lifting typeSPR-L==Spring-loaded/ is loaded with springsTogether, it is: a spring-loaded check valve. Bolted bonnet (this is common)

Q: Detailed distinction between backflow preventer and check valve: The backflow preventer consists of two separated check valves and a drain valve. Due to the local head loss of the check valve, the pressure in the middle cavity is always lower than the pressure at the inlet. This pressure difference causes the drain valve to be closed and the pipe is in normal water supply. In abnormal pressure (i.e., the outlet pressure is higher than that of the middle cavity), even if the two check valve can not reverse sealing, safety relief valve can automatically open the reverse water emptying, and the formation of air separation, ensure the health and safety of water upstream.

Q: What are the differences between the vertical check valve and the horizontal check valve?: The main difference is whether the valve center and valve seat are placed horizontally or vertically. It is usually designed with the pipe

Q: The difference between slow closed valve and open the valve: The difference is mainly that the opening and closing of the slow closing check valve depend on the external and external forces to perform the slow opening and closing (usually hydraulic cylinder or pneumatic cylinder). The swing check valve is opened and closed by the pressure of the pipe medium to complete the opening and closing (and the pressure of the pipeline).

Q: What are the specifications of the DN200 check valve?: DN200 is a specification.The principle of the check valve, the check valve, the opening and closing parts, depend on the flow of the medium and the power to open or close on its own, so as to prevent the backflow of the medium, called the check valve. Check valves belong to the automatic valve, mainly used for one-way flow of media channels, allowing only medium to flow in one direction, to prevent accidents. The check valve is divided into three kinds: lift check valve, swing check valve and butterfly check valve. The lift check valve can be divided into two types: vertical and horizontal. Swing check valve is divided into single, double valve and multi flap type of three. Butterfly check valve for straight through, more than a few kinds of check valve, in the form of connection can be divided into thread connection, flange connection and welding three. A check valve is a valve that automatically prevents the flow of fluid. 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.

Q: Check valve authentication information: If you need surface processing, please contact the manufacturer.ISO 9001-2008Check-All valve company has ISO9001-2008 certification. Our certificate number is: FM 40858, which was issued by the British Standards Institute (BSI). The certificate indicates that the design, manufacture and distribution of all Check-All products comply with the requirements of ISO-9001-2008. This also means that when you order the Check-All valve, you will be assured of a high quality check valve on time.NACE Compliance certification of the American Society of corrosion protection engineersMany Check-All valve products comply with NACE MR0175/ISO 15156 and NACE MR0103. Contact manufacturers can get.

Q: I have to use a check valve to prevent return water due to pipe installation problems due to regular water supply. But the recent discovery of a running water phenomenon, just on a full tank of water slowly from the pipeline flow away, but not all go, a flow did not flow, time is not the same, but sometimes sometimes does not flow, this is going on, ask professional personage answer: You should be horizontal check valve, with pressure difference, water pressure is not lost; or a check valve inside where the card, must be a certain pressure to baffle back.The problem can't be solved: if you change the pipe, you'll have a vertical check valve

Q: What is the HC41X-16Q model of the optical valve? What is its main function?: Usually the valve is automatically work, fluid pressure flow in one direction, the valve open; the opposite direction of fluid flow by gravity, fluid pressure and valve closing effect on the valve seat, thereby cutting off flow. Not suitable for medium containing solid particles and viscosity. When the medium according to the provisions of the direction of flow, the valve by the media force, is open;

Q: How can the fast closing noise check valve prevent water hammer?: Biaoguan valve that once the pump stopped, check valve spool in the spring or other auxiliary device for double end under the action of force balance in advance to the closed position, can greatly reduce the amount of water and initial water reflux falling height, water hammer force is calculated by gravity superposition, to reduce the amount of water is equal to the reduced gravity, but fell short height reduces the inertia time is relatively reduced speed, and can prevent the formation of destructive or reduce water hammer water hammer.

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