- DN15-DN600
- Stop
- DN15/20/25/32/40/50/65/80/100/125/150 (1/2″-6″)
- PN16/PN25/PN40 (1.6MPa/2.5MPa/4.0MPa)
- -29℃~200℃ (NBR bellows), -40℃~425℃ (stainless steel bellows)
- WCB cast steel (A216 WCB), 304/316 stainless steel (A351 CF8/CF8M)
- 316L stainless steel (wall thickness 0.25-0.5mm), 2-4 layers, fatigue life ≥10,000 cycles
- PTFE (standard), PPS (high-temp), hard alloy (abrasion-resistant)
Specification
Bellows Seal High Pressure Cast Steel Globe Valve
I. Product Overview
NEWWAY bellows seal flanged globe valves are engineered for toxic, flammable, and high-purity media, featuring dual sealing from bellows and packing to eliminate external leakage. Constructed from WCB cast steel, 304/316 stainless steel, and CF8/CF8M, they cover DN15-DN150 (1/2″-6″) with PN16-PN40 (1.6MPa-4.0MPa), suitable for -29℃~425℃. The valve regulates flow via stem movement, offering linear flow characteristics for precise control in chemical, pharmaceutical, and power industries with strict leakage requirements.
II. Core Technical Parameters
Specifications & Pressure-Temperature Range
Nominal Diameter: DN15/20/25/32/40/50/65/80/100/125/150 (1/2″-6″)
Pressure Class: PN16/PN25/PN40 (1.6MPa/2.5MPa/4.0MPa)
Temperature Range: -29℃~200℃ (NBR bellows), -40℃~425℃ (stainless steel bellows)
Materials & Sealing System
Body Bonnet: WCB cast steel (A216 WCB), 304/316 stainless steel (A351 CF8/CF8M)
Bellows: 316L stainless steel (wall thickness 0.25-0.5mm), 2-4 layers, fatigue life ≥10,000 cycles
Seat Seal: PTFE (standard), PPS (high-temp), hard alloy (abrasion-resistant)
Connection: Flanged (ASME B16.5, GB/T 9113), RF/FF face
Actuation & Operation
Actuation: Manual (with gearbox option), electric (IQ series actuator), pneumatic (double-acting cylinder)
Flow Characteristic: Linear, turndown ratio 100:1
Protection Grade: IP67 (electric actuator), Ex d IIB T4 (explosion-proof option)