Ref Price:
$20.00 - 200.00 / pc
Loading Port:
Payment Terms:
TT or LC
Min Order Qty:
1 pc
Supply Capability:
9999 pc/month

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Product Description:

Quick Details

Standard or Nonstandard:





Medium Pressure





Temperature of Media:

Medium Temperature

Port Size:


Place of Origin:

China (Mainland)

Brand Name:





Water, air, oil

Packaging & Delivery

Packaging Details:

standard export packing plywood case

Delivery Detail:

30 days


● Rubber encapsulated disc
● Drain plug hole makes insertment of lifting equipment for flap possible
● Suitable for both horizontal and vertical installation
● FBE coated inside and outside
● Product color:Blue RAL5017


Technical Specification
● Flanges Drilling:EN1092-2 PN16
● Hydraulic test to ISO5208
Seat Test Pressure:17.6 bar
Shell Test Pressure:24 bar
● Maximum temperature:70℃



Parts Name       Material                                         
Valve bodyDutile iron, stainless steel, Cast Seel
Valve glandDutile iron, stainless steel, Cast Seel
Connection typeFlange connection
Application temperature≤80°C
Valve discStainless steel+ nylon cloth wrap




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Q:What are the types of check valves?
The check valve is divided into three kinds: lift check valve, swing check valve and butterfly check valve:1. lift check valve is divided into two types of vertical and horizontal.2. swing check valve is divided into single, double flap and multi flap type of three.3. butterfly check valve is straight through type.The above types of check valves can be classified into thread connection, flange connection, welding connection and clamp connection in connection forms of four kinds.Texture of material1. cast iron check valve2. brass check valve3. stainless steel check valve4. carbon steel check valve
Q:My hood inside outside blow valve pops ringing
Do you think the situation in the wind ` a valve installed in the opposite direction of the flue you can, you should pay attention to when installing wind don't understand the whole, an anti air valve system, like on the wall in the general store has large lampblack machine. Or you in the hood where to buy, you can go to a can go, I also bought the lampblack machine, where he will give you, or call at the time according to the hood people to give you what you can handle.
Q:What's the difference between the cut-off, check, check, and stop valves three? Better picture,
Stop check valve: when the handwheel is rotated so that the valve stem rises, the disc does not rise together, but only the valve clack is released.
Q:Swing check valve can prevent any sewer defection
Sure。Swing check valve, also known as one-way valve or check valve, its role is to prevent the medium back in the pipeline.
Q:What is the difference between the silent check valve and the silent check valve?
DRVZ according to the outline of the design of hydraulics has streamlined waterway better, with the design of internal guide fluid to ensure minimal pressure loss, silent check valve in water backflow before quickly shut down to avoid water hammer, water hammer sound and destructive impact to mute.
Q:The self-priming pump with check valve (check valve, water valve)?
Self suction pump reverse water valve is a check valve.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 check valve can also be used to provide a supply to the auxiliary system where the pressure may rise above the system pressure. The check valve can be mainly divided into swing check valve (rotating by gravity center) and lift check valve (moving along the axis).The function of this type of valve is to allow the medium to flow in one direction and to prevent flow in the direction. 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.
Q:What's the difference between the cut-off check valve and the stop valve?
The stop check valve prevents backflow and is indistinguishable from the exterior, but can be separated from the spool.
Q:Method for mounting back check valve of pump
Installation method of pump outlet check valve:1, swing check valve is generally installed in the horizontal pipe: for caliber DN~80mm check valve, can also be installed in theVertical or upward sloping pipe.2, the straight through lift check valve should be installed on the horizontal pipe;3, vertical lift check valve must be installed on the vertical pipe, the medium for bottom-up flow.As the check valve is easy to damage, therefore, should be installed near the pump outlet valve, in the upper part of the check valve with a cut-off valve (general use of ball valve or gate valve), easy to overhaul. To facilitate the relief of the check valve before disassembly, the relief valve shall be installed between the check valve and the shut-off valve.
Q:Why is the water ring vacuum pump equipped with check valves?
The check valve is a one-way valve, the instantaneous vacuum of the stopping pump is higher than the pump cavity, and the gas enters the pump cavity from the exhaust port, and the water pressure is connected to the vacuum pipeline, and the function of the check valve is to prevent water from entering the pipeline
Q:What is the function of the stop valve and check valve installed on the water supply pipe?
The cut-off valve is a common valves, can also be used for throttling, mainly used to connect or disconnect the line of medium, generally not for regulating flows.

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