Ref Price:
$20.00 - 200.00 / pc
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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 is the reason that the check valve does not stop water?
4 the vertical lift check valve shall be mounted on a vertical pipe.5, the lift type horizontal check valve shall be installed on the horizontal pipe.6. Do not check the weight of the valve in the line. The large check valve shall be independently supported so as not to be affected by the pressure caused by the piping system.
Q:Check valve h42h-dn80 what does that mean?
According to the provisions of the JB/T 308-2004 valve type programming method:H = check valve4 = connection: flange2 = structure form: vertical lifting typeH = sealing surface material: Cr13 stainless steelDN80== nominal diameter: 80mm
Q:Is it necessary to install a check valve in the piston refrigeration compressor?
The small refrigeration system does not require the installation of a special check valve or check valve.Only the larger refrigeration system needs in the pipeline are arranged on the corresponding one-way valve or check valve when using the piston compressor, the main purpose is to prevent too much liquid refrigerant migration to the piston compressor resulting in frozen oil is liquid refrigerant dilution and lubrication performance variation, the compressor with varying degrees of lack of oil operation.
Q:If there is no check valve, there will be a reverse flow of water, what is the damage to the pump?
For the work of the pump, when stopped, the water will reverse the impact of the blade, resulting in changes in motor power, while the impact will bring air, it is easy to blade cavitation, affecting the life of the pump ah!Like you said, if the two pumps are connected in parallel, another pump reverses, and that's the same thing. Damage doubles. For a high power motor, it doesn't start several times.
Q:What's the difference between a stop valve and a check valve? Is it a valve?
The cut-off valve is a common valves, mainly used to connect or disconnect the line of medium, generally not for regulating flows.globe valves for a wide range of pressure and temperature, but are generally used for medium and small diameter pipes. The cut-off valve is closed parts (valve) moving along the centerline of the valve seat valve. The stop valve is mainly used for cutting in the pipeline.
Q:With no negative pressure water supply, the pump is equipped with a check valve, the construction ring network also needs to install check valve?
With no negative pressure water supply, the pump is equipped with a check valve, the construction ring network also needs to install a check valve, or else the water pump may enter the ring network.
Q:How to install the check valve?
Mounting position of check valve:Installed in the cut-off valve (solenoid valve, pneumatic valve, etc.), to prevent the back of the valve medium, the formation of back pressure or water hammer, affecting the normal use of the front valve.Check valve installed in the pipe bend elbow or vertical direction of the drop is larger, but also to prevent water hammer impact on the pipeline and damage.
Q:Pump adapter need check valve?
Multifunctional pump combination device usually comes with safety valves and check valves, usually in the flange pipe interface or who is interface settings simple check valve, safety valve is white, but does not apply to the north, the northern cold, need to separate the pipes below plus a check valve, a higher temperature of the South may be suitable for direct use of non frozen.
Q:Does the check valve of the flue of the range hood work?
There is also a smoke exhaust smoke fire check valveThe utility model is installed at the rear end of a kitchen fume exhauster or a toilet exhaust fan to a common exhaust pipe inlet with a fireproof grade, and the fan is opened (exhaust gas) when working. In the fan does not work naturally closed (to prevent backflow, waste) or common duct inside temperature reaches a set value can be automatically closed, and within the stipulated period of time to meet the fire performance requirements, the role of smoke from fire retardant valve. This metal valve works on more, the basic effect should be good.
Q:How to control the common flue return and smoke return?
In the hood outlet to install a reasonable design, shut tight, open the hood in place, can be easily wind blown open, will not be open to the flue suction, and the blade contact area is very small, and a sealing ring, not to hinder the blade opening exhaust flue check valve closed Miller beauty you can eliminate the smoke intrusion and poor smoke.

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