Hydraulic Control Valve
1. Product introduction
Hydraulic control valve is a general term for a series of control valves. It was produced in Israel, the Netherlands, Denmark, the United States, Canada and other countries earlier. It entered China in the 1990s. Adjustable pressure reducing valve, slow closing check valve, flow control valve, pressure relief/pressure sustaining valve, electric valve, water pump control valve, differential pressure balance valve, emergency shutdown valve, deluge valve, fixed water level valve and other products. And widely used in construction, fire, water plants, HVAC, municipal, steel, electric power, petroleum, chemical and other systems of the pipeline network.
Hydraulic control valve uses the principle of hydraulic control, uses the pressure difference between the upper and lower valve chambers to control the movement of the valve disc, and then generates a series of valves with different functions through the bypass pipeline and various pilot valves of different structures.
●In 2001, the hydraulic control valve produced by our company was appraised by the Shanghai Municipal Science and Technology Commission and the Construction Committee as the most advanced product in China, and the appraisal number is 2001-6133.
●In 2002, the Shanghai Municipal Engineering Construction Standardization Office entrusted the company to formulate the recommended application map of Shanghai construction products
"SJ Series Hydraulic Control Valve Installation Diagram" Atlas No. 2002 Shanghai S/T-104.
●In 2002, the company was entrusted by the China Engineering Construction Standardization Association to formulate the design specification standard for hydraulic control valve application, the standard number is CEC8144:2002.
●In 2004, the company was entrusted by the China Engineering Construction Standardization Office to formulate product industry standards for hydraulic control valves.
Hydraulic control valve is a general title of one series control valve, was earlier made in Israel, Holland, Demark, UAS, Canada etc. countries and led intoChina in 1900s. The hydraulic control valve series made in this Co.cover remote control floating valve, adjustable pressure reducing valve, slowly closed checkvalve, pressure discharge/sustaining valve, electric valve, water pump control valve, pressure differential balancing valve, emergent close valve, raining valve,water level fixing valve etc. products and are used for the pipe network of building, fire-fighting, water works, warming, steel & iron, electric power, petroleum,chemical industry etc. systems.
This valve makes a series valve formed by such a way as utilizing the hydraulic control principle and the pressure differential between both upper andlower valve cavities to control the disc’s movement and acting as different functions via the by-pass pipelines and the pilot valves of various different struc-tures.
●In 2001, the hydraulic control valve products made in this Co. were entitled as the most advanced products nationwide approved by both Scientific Commission and Construction Commission of Shanghai. The appraisal number: 2001-6133.
●In 2002, this Co. was entrusted by the office of Shanghai Engineering Construction Standardization to draw out SJ series hydraulic control valve installa-tion figure collection of the recommended application figure collection of Shanghai buildings’products, the figure collection number: 2002 HU S/T-104.
●In 2002, this Co. is entrusted by the Association of China Engineering Construction Standardization to draw out the standard for the application and de-sign rules of hydraulic control valves. The standard number: CECS144: 2002.
●In 2004, this Co. is entrusted by the office of China Engineering Construction Standardization to draw out the industrial standard for the hydraulic controlvalve products(coming soon).
2. Product Features: PRODUCT FEATURES
●The valve body adopts full channel and streamlined design, with small fluid resistance and large flow rate;
●The inside and outside of the valve body and valve cover are coated with epoxy resin powder, which can prevent the corrosion of the valve body and valve cover;
●Adopt foreign detachable valve seat Advanced technology, ingenious structure, easy maintenance and replacement (no need to dismantle the whole valve); ●
It can be installed vertically or horizontally in the pipeline, and its reliability remains unchanged;
Double protection of sealing gasket and sealing ring;
●The piston cylinder adopts the guide hole, and the damping is appropriately increased to make the piston movement more flat and flexible;
●The complete combination of stainless steel piston cylinder, integral piston and butadiene rubber sealing ring greatly prolongs the service life.
● The body is full-channel and streamline designed, leaving small fluid resistance and a big flow;
● Both outside and inside of body and bonnet are coated with epoxy resin powder and can prevent them from corrosion;
● Use the advanced foreign know-how of removable seat ring, exquisite structure, easy repair and replacement (no need to remove the whole valve);
● Vertically or horizontally mountable in the pipeline with the reliability kept unchanged;
● A dual protection of sealing pad and sealing ring is used on the connections between body, bonnet and piston cylinder;
● For the piston cylinder, a flow-guide hole is set and appropriate damp is addad with it so as to have the piston movement more stable and flexible;
● The complete combination of full stainless steel piston cylinder, overall piston and NBR seal ring gets the duration greatly extended.
