American standard-compliant material Tin bronze valve clack castings

The valve disk is the valve core, which is one of the main core parts of the valve. It directly bears the pressure of the medium in the valve . The materials used must comply with the " pressure and temperature grades of the valve ". Each disk has a cylindrical bore with a transfer shaft and a ring groove or sealing surface mounted with a sealing ring. According to the use of the valve disk, the valve material can be cast iron, carbon steel and stainless steel. The blanks are all castings.

Butterfly valve disk is shaped like a disc. Most of the valve disk sealing surface is soft material, such as rubber or plastic, using a pressure ring to fix the sealing ring on the disk.

The main technical requirements for butterfly valve disk are:

1.The ring groove precision with sealing ring is generally 6 ~ 7 grade, and the finish is not less than ? 5.

2.The accuracy of two axle holes is 4~6 grade, and the degree of finish is not less than ? 6.

3.The precision of the no-match processing surface is 8 grade, and the finish is ? 3.

4.Different axes of two axle holes is not greater than the specified value.

5.The non-perpendicularity of the two axle holes on the end face is not greater than the specified value.

Valve clack

Material:RG5?C95800   Weight range:5-500kg

Castings of such material have good abrasion resistance and corrosion resistance, easy processing, good castability and air tightness. The castings are applied in the shipbuilding industry. The material standard complies with EN1982:1998?ASTM B148.

Butterfly valve clack 

Material:RG5?C95800?C95500?C83600    Weight range:5-500kg

Castings of such material have good abrasion resistance and corrosion resistance, easy processing, good castability and air tightness. The castings are applied in the shipbuilding industry. The material standard complies with EN1982:1998?ASTM B148.

Wuxi Dongao is one of the professional manufacturers and suppliers of use american standard-compliant tin bronze/aluminum bronze/copper alloy material for processing and customization of ball valve/right angle valve/butterfly valve/check valve clack castings in China, which is competitive in good corrosion resistance. Welcome to buy or wholesale the high quality products made in China from our factory.