1, the concept of hydraulic control valve: hydraulic control valve is a water pressure control valve, which consists of a main valve and attached to the catheter guide valve needle valve and pressure gauges and other components. 2, the type of hydraulic control valve: According to the purpose of use? Function and place can be evolved into a remote control float valve? Pressure reducing valve? Slow closure check valve? Flow control valve? Relief valve? Hydraulic electric control valve, pump control valve Wait. According to the structure can be divided into two types of diaphragm and piston type 3, hydraulic control valve diaphragm type and piston type two types of valve works the same, are the pressure difference between the upstream and downstream â–³ P as the driving force, controlled by the pilot valve, the diaphragm Piston) Hydraulic differential operation, fully hydraulically adjusted so that the main valve disc fully open or fully closed or in regulation. When the pressure water entering the control chamber above the diaphragm (piston) is vented to the atmosphere or downstream low pressure zone, the pressure acting on the bottom of the valve disk and under the diaphragm is greater than the pressure above, pushing the main valve disk fully open (Piston) above the control chamber pressure water rotor pump can not be discharged to the atmosphere or the downstream low-pressure zone, the pressure acting on the diaphragm (piston) is greater than the pressure value below, so the main valve When the pressure value in the control chamber above the diaphragm (piston) is between the inlet pressure and the outlet pressure, the main valve disc is in the regulated state and the adjustment position depends on the needle valve in the catheter system and Adjustable pilot valve joint control. Adjustable pilot valve through the downstream outlet pressure and with its changes to open or close its own small valve port, thereby changing the diaphragm (piston) above the control room pressure value, control valve plate valve position adjustment. More Keyword Search: Control Valve
We
can produce the carbon steel pipes according to the EN10210,EN10216 and EN10297 standards, Such as the S235JRH steel pipe,S275J0H
steel pipe,S275J2H steel pipe,S355J0H steel pipe,S355J2H steel pipe,E355 steel
pipe,P235GH steel pipe and P265GH steel pipe.
Yangzhou Chengde Steel Pipe (YC) has been
growing to a leading large diameter seamless pipe manufacturer with production
range Ø219 ~ Ø1750 mm in OD and wall thickness from 8 mm up to 150mm.
The product covers coal power generation, Nuclear power, Oil and gas. Chengde
group acquired investment cooperation from American Carlyle Group and PCC
(Precision Castparts Corp., Fortune 500 enterprise of the world, majorly in
Aerospace and Power industries) successively as her special marketing strategy
and the excellence of the product cost performance.
YC has been granted a number of approval
certificate by international institutions, such as ASME Nuclear pipe
certificate, China Nuclear HAF certificate, 914mm Cylinder certificate, API
monogram and certificate, ISO9001 by TUV NORD, ISO14001/OHSAS18001 by CQC,
approvals from Shipping Classification Bureaus like DNV, RINA, ABS, Lloyd, GL,
Bureau Veritas, and permit of exporting to Europe as PED 2014/68/EU and AD 2000
certificates for pressure pipes, CPD (Construction Products Directive), etc. and
these certificates support the development of international sales market.
EN 10210 Carbon Steel Pipe
Carbon Steel Seamless Pipes,En10210 Pipe,S355J2H Pipe,S235Jrh Pipe
YANGZHOU CHENGDE STEEL PIPE CO.,LTD , https://www.chengdepipe.com