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Service & Suport
SW4 Series - Single Seat Valves
The SW4 series hygienic single seat flow control valve is highly versatile and fulfills the demands of today’s processing industries. The hygienic valve design makes it ideal for applications in dairy, processed foods, beverage, brewery, and chemical industries.
SW4 Single Seat Valve Overview
Key Advantages
- Thick valve housing reduces stress in the seat area
- Wear-resistant elastomer/PTFE shaft seal and bearings extend seal life
- Convenient installation and maintenance
- Profile seals with markings for fast identification
- Metallic stop ensures proper compression of seat seal
- Ball-shaped housing reduces CIP cleaning time by preventing sump/dome formation
- Quick-release clamp closure for simple valve servicing
- Multiple housing configurations available
- Certified 3-A sanitary design
Construction Materials
All product-wetted components are made of AISI 316L / 1.4404 (DIN EN 100888) stainless steel. Seal materials include EPDM (standard), with options for HNBR and FPM.
SW4 Valve Variants
Configuration Options
- Manual actuation (SW4 H)
- Divert valve (SWS4)
- Tank outlet version (SWT4)
- High-pressure design (SWhp4)
- Steam barrier version (SW4 DPF)
- Long stroke variant for viscous media or large particulates
- Modulating cone option (SWR4)
- Tangential inlet/outlet configuration
- ATEX compliant versions
- 3-A version for enhanced hygienic applications
Nominal Dimensions
Available in DN 25 – DN 150 / 1” – 4”, and 6” sizes
Sizes: 1" - 4", 6" / DN25 - DN150 Product Wetted Parts: AISI 316L Non-Product Wetted Parts: AISI 304 Seal Materials:
- Standard EPDM
- Optional: HNBR, FPM
Min. Control Air Pressure: 87 PSI (6 bar) Max. Control Air Pressure: 116 PSI (8 bar)
SW4 Single Seat and Change Over Valve Dimensions
Optional Equipment:
- Stroke limitator (1” - 4” and DN25-100)
- Crank handle for manual operation (1” - 4”, 6” and DN25-150)
- Oil damp cylinder (1” - 4” and DN25-100 )
- Steam barrier
- Long stroke (2” - 4” and DN50-100)
- Tangential inlet (1” - 4” sizes only)
- Proximity holder
- Tank outlet version
- 3-A version
- CU control units
Pressure Ratings:
Operating Pressure: Maximum line pressure: 145 psi (10 bar)
Temperature Ratings:
Operating temperature: Maximum 275ºF (135°C), Short time 284ºF (140ºC) - no steam