Swing Check Valve

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Loading Port:: China Main Port

Payment Terms:: TT or LC

Min Order Qty:: 1 Piece pc

Supply Capability:: 1000000 Pieces Per Year pc/month

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Swing check valve

*Good quality with reasonable price.

*Qick deliver time and enough store of valves.

*Many types to choose.

Swing check valve

Bolted cover,swing type disc

Threaded or welded seat ring

ASTM A216 WCB,A217 WC6,A351CF8,A351CF8M,

A351 CF3,A351 CF3M,A351 CN7M

Specifications of flanged Swing Check Valve

size: 1/2"-42"

material: steel

Certification:ISO9001,ISO14001,API609,CE0036

Guarantee: 18months

Q: Does the check valve differ in front of the water meter and press it behind the water meter?: The combination of the meter and check valve must be the check valve behind the meter because the purpose of the check valve is to prevent the water meter from reversing and to protect the rotating vulnerable parts in the water meter.. At present, there are water meters with check valves, which can simplify installation and provide efficiency

Q: How to install industrial check valves? How should they be used?: 4, the check valve closes, will produce water hammer in pipeline pressure, will lead to serious damage to the valve and piping or equipment, especially for the big pipe or high pressure pipeline, it should pay attention to those who use check valve. (end)Check valve to have two kinds, one is installed in the pump before the vertical Straw end, the purpose is to take out a water pump to charge a water pump and pump, because Straw in the anhydrous pump only idle pumping Sheung Shui, so the pump must be filled with water to produce water. The installation of this pump is a kind of method is higher than the water level when the negative pressure is also called method such as drawing water from wells. Another method is the liquid level above the pump pump installation, for this method of using two water supply, because the liquid level above the pump to start and stop the pump when convenient do not turn off the pump outlet valve, the check valve should be installed in the pump in the rear.

Q: The difference between check valve and check valve: 1, one-way valve: is a typical seat valve, one-way valve Check, Valve, also known as check valve or check valve. Used in hydraulic systems to prevent reverse flow of oil flow. There are two one-way valve one-way and right angle type. Straight through one-way valves are threaded and installed on the pipe line. The right angle one-way valve has threaded connections, plate connection and flange connection in three forms. Liquid control check valve, also known as blocking valve or pressure valve, which is the same as one-way valve, used to prevent reverse flow of oil. But in the hydraulic circuit needs the oil flow reverse flow, but also can use the control oil pressure, opens the one-way valve, causes the oil flow to be possible to flow in two directions. The hydraulic control check valve adopts a conical valve core, so the sealing performance is good. When the closed oil circuit is required, the valve can be used as the one-way locking of the oil circuit to maintain the pressure. Liquid control check valves control the leakage of oil, there are two types of internal and external leakage. In the oil flow reverse outlet, no back pressure in the oil pipeline can be used to vent type; otherwise, need to leak type, in order to reduce the control oil pressure2, check valve is only one kind of valve, it can be said that one-way valve is a kind of check valve,

Q: How to install the check valve?: Mounting position of check valve:Installed in the cut-off valve (solenoid valve, pneumatic valve, etc.), to prevent the back of the valve medium, the formation of back pressure or water hammer, affecting the normal use of the front valve.Check valve installed in the pipe bend elbow or vertical direction of the drop is larger, but also to prevent water hammer impact on the pipeline and damage.

Q: Tap water tank with vertical and horizontal check valve.: Look at your pipe installation position, if it is vertical, of course, the vertical check valve is good, if it is horizontal, of course, choose a horizontal check valve.The function of the check valve is to ensure the flow of the fluid in one direction. The moving parts are usually pressed against the seat to form a seal. Small pressure must be applied to moving parts to open the valve. Once opened, fluid power is generated to allow the valve to open or increase opening. Before the valve closes, fluid flow must stop. Fluid power generated by fluid flow prevents all valves from closing. The spring can be used or not to control the opening and to close it. Some check valves rely solely on gravity to provide closing force. Valves that rely on gravity must be installed according to the manufacturer's instructions. If horizontal pipes are laid, the slope of a short distance local pipe must be changed.The swing check valve is powered by gravity. When the valve is opened, the force required to control the valve opening is increased. If the balance between disc weight and fluid dynamic force is incorrect, the valve will not be fully opened. Increasing flow speed may cause unexpected corrosion or erosion damage, so gravity driven valves must be used to meet operating conditions.When the valve is fully opened, the disc or piston stroke must be limited by the stopper. Fully open valve, but not limited, the valve is easy to vibration. Vibration may cause hinge pins or pistons to wear rapidly. Valves using springs may suffer from early spring faults (caused by fatigue). Vibration may be caused by vortices or disturbances. When the fluid has some viscosity, the fluid damping can control the vibration. Valves with springs may be fitted with different rigid springs. If the full stroke stops, including extrusion, to prevent backlash after rapid opening, this can be an effective vibration damper.

Q: What is the reason that the valve is not used for a period of time?Anonymous browsing | 314 times: 1, the valve at both ends of the road must be blocked, there is dry ventilated room. Such as long-term storage, should always check rust corrosion.2, the valve should be cleaned before installation and eliminate the defects during transportation.3, the installation must be carefully checked on the valve signs and nameplates are in line with the use of requirements.

Q: Swing check valve can prevent any sewer defection: The opening and closing parts depend on the flow of the medium and the power is turned on or off by itself. The valve that prevents the backflow of the medium is called a check valve.

Q: Does the regulator have a check action? If yes, can I use it as a check valve?: There are some regulators that have this reverse cut-off. A regulator without overflow. Such as gas regulator.For example, the compressed air regulator has no reverse cut-off function.Regulators in the form of a lot of specific circumstances, specific analysis, only to exceed the body can withstand the pressure, generally not bad.

Q: Is the tank stop valve a non-return valve or a check valve?: The check valve is not the same as the cut-off valve. The difference between them is mainly that the structure is very different.

Q: Are check and check valves the same kind of thing?: Yes, that's right. Ha-ha。 My friend needs an anti - stop valve to find me. I have one for sale here.

Our products are in accordance with different standards, such as API, DIN, JIS, BS, and GB, as well as non-standards. We also provide OEM products according to client requirements. Our products are widely used in oil refinery, petroleum, chemical plant, power station, natural gas, and civil industry. We have obtained ISO9001 International Quality Management System Certificate.

1. Manufacturer Overview

Location	Jiangsu,China
Year Established	2001
Annual Output Value	US$10 Million - US$50 Million
Main Markets	North America South America Eastern Europe Southeast Asia Africa Oceania Mid East Eastern Asia Western Europe
Company Certifications	ISO9001

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3. Manufacturer Capability

a) Trade Capacity
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Language Spoken:	English
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Factory Size:
No. of Production Lines	Above 10
Contract Manufacturing	OEM Service Offered
Product Price Range	High and/or Average