98-21000W 98-21200W 98-21120W 98-21125W Pneumatic bellows seal control valve

98-21000W 98-21200W 98-21120W 98-21125W Pneumatic bellows seal control valve

Overview of  98-21000W 98-21200W 98-21120W 98-21125W Pneumatic bellows seal control valve

98-21000W 98-21200W 98-21120W 98-21125W Pneumatic bellows seal control valve is a product developed on the basis of digesting and absorbing foreign advanced technology. 97-21000w series products are composed of pneumatic diaphragm multi spring actuator and 21000w series single seat bellows sealing valve, with small volume and light weight.

Working Principle of 98-21000W 98-21200W 98-21120W 98-21125W Pneumatic bellows seal control valve

The regulating valve is composed of electric actuator or pneumatic actuator and regulating valve. The regulating valve is usually divided into straight through single seat regulating valve and straight through double seat regulating valve. The latter has the characteristics of large flow capacity, small imbalance and stable operation, so it is usually especially suitable for occasions with large flow, high pressure drop and less leakage .The regulating valve is used to regulate the flow, pressure and liquid level of the medium. The opening of the valve is automatically controlled according to the signal of the regulating part, so as to achieve the regulation of medium flow, pressure  and liquid level. 

Features of 98-21000W 98-21200W 98-21120W 98-21125W Pneumatic bellows seal control valve

98-21000W 98-21200W 98-21120W 98-21125W Pneumatic bellows seal control valve

1. Small volume

2. Light weight.

3. Good stability,

4. Small leakage,

5. Wide application range,

6. Double sealing

7. Prevent leakage

8. Suitable for vacuum applications

Main tech data of 98-21000W 98-21200W 98-21120W 98-21125W Pneumatic bellows seal control valve

Pressure rating: 150300,

Caliber: 3 / 4,1,2,3,4,6

Connection mode: socket welding, flange, butt welding

Temperature range: - 17 ~ 200 ℃

Structure: Globe, bellows seal, sliding stem

Size: DN20～DN200

Rating: PN16~PN64

Body: WCB, CF8, CF8M

Trim: 304SS, 316SS, 316L

Note: Any special design or question of 98-21000W 98-21200W 98-21120W 98-21125W Pneumatic bellows seal control valve,kindly contact the manufacturer for more details.