China Geared Rubber Lined Butterfly Valve Suppliers, Manufacturers, Factory

Geared Rubber Lined Butterfly Valve

Feature of gearbox rubber lined butterfly valve

1. The half-shaft design makes the valve only have two parts in contact with fluid, namely the valve plate and the valve seat. Effectively prevent corrosion, increase the service life of the valve, and maximize the flow rate.

2. The triple shaft end seal effectively prevents external leakage.

3. The smooth valve plate and the valve seat closely cooperate to effectively prevent internal leakage and reduce valve torque.

4. The replaceable valve seat support ring avoids the expansion and deformation of the rubber valve seat and makes the replacement of the valve seat easier.

5. The rubber valve seat is directly vulcanized on the support ring, which is suitable for high flow rate and vacuum applications and improves the service life.

6. The shaft sleeve adopts self-lubricating bearing design, which effectively reduces friction, requires less maintenance and has a long service life.

7. A variety of materials can be selected for valve seat and valve plate. The valve can be applied to a variety of different media.

Quick details of a rubber lined butterfly valve with gearbox

DN（mm）	50～2000
PN（MPa）	0.6	1	1.6
Strength test	0.9	1.5	2.4
Seal test	0.66	1.1	1.76
Gas seal test	0.6	0.6	0.6
Applicable medium	Air, water, sewage, steam, gas, oil, etc.

The main material of geared butterfly valve lined with rubber

Part name	Material
Body	Ductile iron, cast steel, alloy steel, stainless steel
Disc	Stainless steel 2507, 1.4529, ductile iron lining rubber and special materials
Sealing ring	All kinds of rubber, Teflon
Stem	2Cr13、SS
Packing	O-ring, flexible graphite