HHQ47H self control slow closing counterweight butterfly check valve

HHQ47H self control slow closing counterweight butterfly check valve

HHQ47H self control slow closing counterweight butterfly check valve is installed at the exit of pump, it can prevent from medium backforward and water hammer damage when pump stop or emergency power shutoff.

Structure

Sloping seat designed, double offset disc

Metal to metal sealing surface. Valve seat plating hard alloy or stainless steel. Disc sealing surface is multi-layer designed (stainless steel 316L & flexible graphite)

Installed with hydraulic slow closing device, small concentration slurry fluid. Valve diameter 250-2400mm, Valve nominal pressure no more than 2.5MPa

Application

Available medium: Water, sewage and others

Material

Valve Close Feature

Flow coefficient (Kv) & Flow resistance coefficient when valve fully opened (ζ)

DN250-DN600

DN500-DN1400

DN1600-DN2400

We are Valve manufacture with 40 years manufacturing expertise, China Classification Society in 2007 and achieved the certificate of valve manufacturing, improved quality of valve manufacturing, shipbuilding became a professional valve manufacturer. By 2010, the United Kingdom (LR) Lloyd's approval of qualified products, the company mass 8.5MPa pressure level valve; large-tonnage dock with the cone-shaped discharge valve has a strong competitive strength; innovative valve technology important for our national defense work services. We have been to improve our level of product design to meet the requirements of the user market. Filling pressure medium sealed the success of large-diameter valve manufacturer, industrial valves in China narrowed the gap with foreign technology.

Ministry of Water Resources State enterprises to obtain the production of hydraulic valve structure permits the production of large turbine main valve, vent valve, adjustable door; company has a nationally recognized NDT qualification.

Double-sided sealing large diameter butterfly valve, double valve sealing surface and a half, large-diameter spherical sealing butterfly valve, fixed emission cone valve, piston valve and high wear-resistant plate-shaped valve, instrument valve has become our main products, such valves door for the oil refinery has a certain market competitiveness.

American butterfly valve according to the introduction of production technology standards ANSI/AWWAC504-80 U.S. manufacturing is one of our important products, learn more advanced features of high-performance butterfly valve seal is eccentric way our water supply, environmental protection and sewage treatment., Metallurgical and chemical pipeline product of choice.

Large-diameter valves are widely used in power plants nationwide and abroad, a large thermal power plants, hydropower. I produced a soft seal butterfly valve, metal sealed butterfly valve, quick exhaust valve closing, slow closing hydraulic control valve series full range of control.

The company also produced a vacuum valve, hydraulic control valves, eccentric fan-shaped valves, check valves, mud valves, composite-style exhaust valve, expansion joint head, mechanical water gate boxes.

Our new base covers an area of 60 acres, the main production plant 10,000 square meters, office support facilities nearly 5,000 square meters, a large vertical lathe and CNC machine tools and other testing equipment.

Over 20 international ser v ices working for you with SOP.

We are not only sale products, we are doing market solution for you.