HomeProductsAngle Seat Valve SeriesWelded Angle Seat Valve

Welded Angle Seat Valve

Industrial grade sealing - Zero water hammer design - Lifetime maintenance free
➤ Ultra-strong welded structure: 304/316 stainless steel one-piece welded valve body, bearing pressure up to 16-40bar, completely eliminating the risk of leakage, suitable for steam, corrosive media and high temperature fluids (-30℃~+300℃).
➤ Flow optimization technology: Y-type DC flow path design, flow resistance reduced by 45%, KV value increased by 30% (DN50 up to 55m³/h), significantly improve the delivery efficiency.
➤ 10 million times long life: Hardened 316L stem + PTFE self-lubricating seals, withstanding 10 million times of high-frequency opening and closing, truly maintenance-free.
➤ Global compliance certification: ISO 9001, FDA/EC1935 (sanitary), to meet the aseptic and safety requirements of the food, pharmaceutical and chemical industries.


1. Key Innovations 

✅ Zero Water Hammer Mute Technology
- Bi-directional flow design: inflow above the valve seat (steam/gas enhances sealing), inflow below (liquid automatically absorbs impact), completely eliminating pipeline vibration and noise.  
✅ 360° Intelligent Installation
- Pneumatic actuator can be rotated in all directions, adapting to horizontal/vertical/inclined pipelines; Namur standard interface quickly integrates solenoid valves/limit switches.  
✅ Ultra-low air consumption and energy saving 
- Only 0.4~0.7MPa driving pressure is required (40% energy-saving compared with similar), single-acting spring reset ensures automatic valve shutdown in case of air source failure, guaranteeing system safety.  
✅ Aseptic grade technology 
- The 316L valve body is mirror polished (Ra≤0.8μm), with zero-dead-angle structure to eliminate microbial residues, FDA/3-A certified, and suitable for CIP/SIP cleaning process.  

2. Technical Specifications 

Parameters
Standard configuration
Extended options
Body Material
 PTFE (-30℃~+180℃) 
F46 (+220℃)/EPDM (Food Grade)
Sealing Material
PTFE (-30℃~+180℃) 
 F46 (+220℃)/EPDM (Food Grade)
Connection Method
 Butt Weld/Socket Weld ( ASME B16.25) 
Quick-fit/Threaded (customized) 
Nominal Diameter
DN10-DN80 (standard)
DN100-DN150 (high-pressure type)
Pressure Range
0~16 bar (Vacuum to PN25) 
40 bar (PN40 customized) 
Temperature Range
-20℃~+200℃
+300℃ (autoclave type) 
Actuator Type
Single Acting (Normally Open/Normally Closed)/Double Acting
Explosion Proof Pneumatic Heads/Manual Emergency Switches 
Life Cycle
 ≥5 Million Openings and Closings 
10 Million Openings and Closings (High Frequency) 
Certification Standards
ISO 9001, RoHS
 3-A, FDA, ASME BPE


3. Industry Applications 


Food, Beverage & Pharmaceuticals
- Aseptic Filling Line: CIP line control for beer/dairy (mirror polish + FDA approved)  
- Bioreactors: precise addition of culture media (zero dead space design, GMP Class C compliant)  

High temperature and high pressure scenarios  
- Steam sterilization equipment: 180°C saturated steam control (F46 seals resistant to 300°C)  

- Chemical reactor: thermal oil/acid transportation (316L valve body resistant to strong corrosion) 

 

Environmental Protection and Automation

- Wastewater treatment systems: metered injection of acid and alkali fluids (PTFE seals for corrosion resistance)

- High-frequency cooling cycle: fast start-up and shutdown of laser equipment (0.2 second response, 1000 times/hour)


4. Customization Options

▸ Actuator Configurations: Normally open (gas shutdown safety mode), Normally closed (spring-loaded emergency shutdown), Dual-acting (stabilized gas supply scenario)

▸ Intelligent accessories:

- Limit switch: valve position feedback signal (PLC interlock control)

- Explosion-proof solenoid valve: 24VDC/220VAC (Ex d IIC T6 certification)

- Electrical positioner: 4-20mA remote flow accurate adjustment

▸ Special working conditions adapted:

- Deep cold treatment: -50 ℃ liquid nitrogen environment (special sealing package)

- Coated stem: hydrofluoric acid solvent corrosion-resistant coating

- Sanitary upgrades: triple-clamp quick-fit connections (DIN11851 standard)

If you have any enquiry about quotation or cooperation,please feel free to email us at or use the following enquiry form. Our sales will contact you within 24 hours. Thank you for your interest in our products.

Sign up for the newsletters