H71H, H71W PN10~PN40 PN40 pair clamp lift check valves

Product introduction:
The valve is composed of valve body, disc, spring, etc., installed horizontally or vertically in the pipeline system to prevent media backflow, with short structure, small volume, light mass; Disc close fast, water hammer pressure is small; Flow channel unobstructed, fluid resistance is small; Sensitive action, good sealing performance.
The main function is to prevent the backflow of the medium, it is an automatic valve that depends on the pressure of the medium to open and close. Because the structural length of the sandwich check valve is shorter than that of the general flange check valve, it is suitable for places where installation space is limited. Wafer check valves with short length structure, small volume light weight, the disc to close rapidly, small water hammer pressure, flow channel unobstructed, fluid resistance small, horizontal line or vertical line can be used, easy installation, action quick, sealed performance is good, the disc short trip, close the valve impact is small, simple and compact, aesthetically pleasing, long service life, high reliability, prevent the backflow medium, automatic control, etc.
Structural features:
1, the structure and length is short, the length of the structure only traditional flange check valve 1/4-1/8;
2, small size, light weight, its weight only traditional flange check valve 1/4-1/20;
3, disc closed quickly, water hammer pressure is small;
4, horizontal pipe or vertical pipe can be used, easy to install;
5. Unobstructed flow channel and low fluid resistance;
6, sensitive action, good sealing performance; 7. Disc stroke is short and valve closing impact is small;
8, the overall structure, simple and compact, beautiful shape;
9. Long service life and high reliability.
USES:
The sandwich check valve is suitable for nominal pressure pn1.0mpa ~ 42.0mpa, Class150 ~ 2500mm; Nominal size DN15 ~ 1200mm, nps1/2 ~ 48; Working temperature 196 ~ 540℃ of various pipeline, used to prevent media backflow. Through the selection of different materials, can be used in water, steam, oil, nitric acid, acetic acid, strong oxidation medium urea and other media. Scope of use: the product can be used in water supply, heating and acid making medium system with strong oxidation, often used as boiler accessories.
The product conforms to the standard: JB/T 8937. No Information           

Main performance parameters

model	Nominal pressure PN	Applicable temperature /°C	Applicable medium
H71H-10C~40	10~40	≤200	Water, steam, oil
H71W-10P~40P	10~40	≤200	Corrosive medium such as nitric acid
H71W-10P8~40P8	10~40	≤200	Corrosive medium such as nitric acid
H71W-10P3~40P3	10~40	≤200	Strong oxidizing medium
H71W-10R~40R	10~40	≤200	Corrosive media such as acetic acid
H71W-10R8~40R8	10~40	≤200	Corrosive media such as urea
H71W-10R3~40R3	10~40	≤200	Corrosive media such as urea

Main overall dimensions

                                                          （unit：mm）