Manufacturer Control Valve China Low Price Best Quality Wholesale

Manufacturer Control Valve China Low Price Best Quality Wholesale System 1

Manufacturer Control Valve China Low Price Best Quality Wholesale

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Loading Port:: Tianjin

Payment Terms:: TT OR LC

Min Order Qty:: 111 PCS

Supply Capability:: 1000 PCS/month

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Packaging & Delivery

Packaging Detail:	According to customers' required
Delivery Detail:	According to customers' required

Specifications

Control Valve:
1.OEM&ODM is welcomed
2.Material:Stainless steel

China Low Price Best Quality Wholesale Manufacturer Control Valve

1.Sample service is provided
2.Very competitive price
3.Perfect aftersale service
4. Material:Stainless Steel

5.OEM&ODM is welcomed

6.Payment Terms:T/T L/C
7.Delivery Time:5-25 days
8.MOQ:1 Piece,it is up to which size clients want
9.Price Terms:FOB Dalian,CIF specified port

Promise mass, the price is reasonable, be provided for goods to expect quick.

Q: Proportional valve why than other small pipeline valves: 3.9 automatic control valveGraphical representation of numbers, names, symbols3.9.1 a pneumatic valve film head cut off the gas valve to maintain the original opening3.9.2 pneumatic valve closed to prevent head cut off the gas valve does not close the film3.9.3 prevent full pneumatic valve head valve does not open cell membrane3.9.4 basic type of pneumatic control valve3.9.5 pneumatic open pneumatic control valve, film head inflating valve opens3.9.6 pneumatic closed pneumatic control valve with membrane head closed3.9.7 pneumatic butterfly valve basic type3.9.8 pneumatic open air butterfly valve, film head inflating valve opens3.9.9 pneumatic closed air butterfly valve with film head closed3.9.10 pneumatic three way regulating valve combined type3.9.11 pneumatic three way control valve split flow type3.9.12 pneumatic valve with hand wheel basic type. Other types of valves with graphics by "people"3.9.13 with handwheel and positioner pneumatic control valve basic type. Other types of valves with graphics by "people"3.9.14 pneumatic cut-off valve three through 1 - 2 head membrane inflatable membrane head 2 - 3.3.9.15 electric control valve refers to the electric actuator with magnetic amplifier actuator3.9.16 electric valves are driven by ordinary single-phase or three-phase electric heads (motors)3.9.17 electric gate valves are driven by ordinary single-phase or three-phase electric heads (motors)3.9.18 electric butterfly valves are driven by ordinary single-phase or three-phase electric heads (motors)3.9.19 two position two way solenoid valve3.9.20 two bit, three way solenoid valve has 1 - 2 electricity, no electricity 2 - 3 links3.9.21 two position, five way solenoid valve P - gas source A, B - vent S, R - Exhaust

Q: Remove the handle and lever the stem rotation with a wrench,: First you know what valve you need, or you know where to use the pipe material, so you do not need to understand the valve material.

Q: What does the PN on the valve mean?: 1, mark "ON25" and "PN16" respectively what does that mean? 2, the valve above has an outer six corners, so PN16 refers to the nominal pressure of 16 kg valve. Valves on the fittings are standard parts, special

Q: What does the 4 point valve mean?: That is not clear, American Standard or GB, or what other

Q: such as gate valve, three way plug valve: The pressure gauge shall be fitted with three way cock.The safety valve does not install any valves and other components on the boiler. Can be installed in the pressure vessel, but when the equipment is running to handle and open the valve, plus seals, hang the obvious mark, a warning can not be closed.

Q: What are the other valves used for the control of dual-use items?: This product is in the operation of import and export trade, electronic key enterprises must be able to operate

Q: Where is the valve used?: Oil and gas pipelines, gas stations, gas stations, petrochemical plants, water works,

Q: What are the key valve enterprises in China? Mainly in those areas?: How much? I don't know. It depends on what valve you need. Hebei iron and steel Wenzhou, needle valve Funing, Anhui Tongdou valve. Do not want to buy a high price of Shanghai valve, look at your specific needs

Q: What are the general types of valves?: Valve is a control component in the fluid delivery system. It has the functions of closing, adjusting, guiding, preventing reverse flow, stabilizing voltage, shunting or overflow and releasing pressure.Function and use(1) cut off categories: such as gate valve, globe valve, plug valve, ball valve, butterfly valve, needle valve, diaphragm valve and so on. Cut off valve, also known as closed-circuit valve, stop valve, whose role is to connect or cut off the pipeline medium.Check valves, also known as check valves or non-return valves, check valves belong to an automatic valve, its role is to prevent the pipeline medium backflow, to prevent the pump and drive motor reversal, as well as the leakage of container media. Pump water off the bottom valve check valve also belongs to class.The function of the relief valve is to prevent the medium pressure in the pipeline or device from exceeding the required value so as to achieve the purpose of safety protection.Control valve, throttle valve and pressure reducing valve, its role is to regulate the media pressure, flow and other parameters.(2) vacuum type: such as vacuum ball valve, vacuum flapper valve, vacuum air charging valve, pneumatic vacuum valve, etc.. Its function is to change the direction of the air flow in the vacuum system, adjust the air flow rate, cut off or connect the vacuum system of the pipeline, and the component is called the vacuum valve.(3) special uses such as pigging valves, vent valves, drain valves, exhaust valves, filters, etc.. The exhaust valve is an essential auxiliary component in the pipeline system. It is widely used in boilers, air conditioners, petroleum, natural gas, water supply and drainage pipelines. Often installed in the commanding heights or elbows, etc., to exclude excess gas pipeline, pipe road to improve the use of efficiency and reduce energy consumption.

Q: How can the material be checked by valve approach? What experiments do you need?: May refer to the valve pressure test principle and the pressure test matters needing attention.(1) in general, the valve shall not be subject to strength test, but the body and bonnet shall be subjected to strength tests after the repair of the valve body and bonnet or corrosion damage. For the relief valve, the constant pressure and seat return pressure and other tests shall be in accordance with the specifications and the relevant regulations.(2) the installation of the valve should be done for strength and tightness test. Low pressure valve sampling 20%, if not qualified should be 100% of the inspection; medium and high pressure valve should be 100% of the inspection.(3) the installation position of the valve shall be in the direction of easy inspection during the test.(4) welding connection valve, not with blind plate pressure test can be used when the cone seal or O ring seal pressure test.(5) when hydraulic test, the valve air will be excluded as much as possible.(6) the pressure should be increased gradually during the test, and the pressure will not be sudden and sudden.(7) strength test and sealed test duration is generally 2~3min, important and special valves should last 5min. Small caliber valve test time can be a little shorter, large caliber valve test time can be longer. During the test, the test time can be extended if in doubt. Strength test, does not allow the body and bonnet sweating or leakage. Sealing test, the general rotor valve only once, the safety valve, high pressure valve and other raw valve to be carried out two times. When testing for the low pressure, large diameter valve is not important and there are provisions to allow leakage of the valve, allowing a small amount of leakage; the common valve, power station valve, marine valves and other valve requirements vary on leakage requirements according to relevant regulations.

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