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

Key Applications

Dairy
Beverage
Brewery
Clean in Place
Chemical

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)

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