1/8 Inch Aluminum Plate

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Butterfly Valve Stainless Steel Threaded Directional Made in China

Butterfly Valve with Plastic Handle Made in China on Good Sale

Butterfly Valve Plastic Handle Made in China on Hot Sale

Butterfly Valve Stainless Steel Threaded Directional with Plastic Handle Made in China

Butterfly Valve Stainless Steel Threaded Directional on Sale

Butterfly Valve with Plastic Handle Made in China on Hot Sale

Butterfly Valve Stainless Steel Threaded Directional on Sale Made in China

Butterfly Valve Stainless Steel Threaded Directional with Good Quality Made in China

Butterfly Valve Stainless Steel Threaded Directional with Plastic Handle

Butterfly Valve with Good Quality with Plastic Handle

FAQ

Where is it installed, what is the role, what is the material, and are there other alternatives instead of this effect?

Valve packing in the valve under the gland to prevent leakage, you can use ordinary asbestos rope and butter emergency replacement

G what's the meaning of the valve?

Valve with other function or with other special mechanism, fill in a Chinese language before the valve type code number

What are mine valves?

You want to see what works on the use of what media, in the choice of what type of valve is more appropriate. Shanghai HuquanValve manufacturers, veteran enterprises, trustworthy.

What does the valve QF mean?

Valve type, one of the contents, Q refers to the ball valve, F refers to the F-4 seals.

How about leaking water pipe valve?

1, if it is household valveA, the valve and pipe connections at the leakage, in the connection, do not rub tape (the best counter clockwise direction, so that when the valve is connected, the more twisted the more tight) ;B, if the valve itself in the leak, there are ways, it is necessary to open the valve, in which to add sealed or O ring, but it is recommended to replace a more convenient.2, if it is industrial valvesA, industrial valves leaking, if not the valve itself in the leak, then in the valve and pipe connections to join the sealing ring,B, if the valve itself is leaking, it is best to return to the manufacturer for maintenance, if not convenient, then only the manufacturers to come here for maintenance.

Is the heat jacketed valve fitted with flanged flanges?

Insulation valve is the standard valve, just in order to ensure the link bolt flange to super space, usually a large ball than normal level, such as the use of the path is DN80 flange, flange is DN100, so is the standard, but the size of flange connecting with other valves are not the same.

Standard and specification for pressure test of valves

(11) when the valve with drive device is tested and its tightness is tested, the sealing test shall be carried out by using the driving device to close the valve. For manual drive units, seal test shall also be done with the actuating closing valve.(12) the by-pass valve installed on the main valve after the strength test and the sealing test. The strength and tightness test of the main valve is carried out. The main valve should be opened when the closing member is opened.(13) iron valve strength test, the application of Pratia tapping valve and valve cover, check whether there is any leakage.(14) the valve test, in addition to the provisions of the plug valve to allow sealing surface oiling, other valves are not allowed in the sealing surface of the oil test.(15) when the valve pressure test, the blind plate on the valve pressure should not be too large, so as to avoid deformation of the valve, affecting the test results (cast iron valve if pressed too tight, will be damaged).(16) after the valve test pressure, should promptly remove the water and clean the valve, should also be prepared for the test record.

What is the KVS in the valve parameter?

The Kvs of the valve reflects the passing capacity of the valve