Shut-Off Double Seat Mix Proof Valves - W71 Series

Mix Proof valves provide safe separation of dissimilar products within the same valve body. For general purpose Mix Proof applications, WCB offers the W71 Series for standard shutoff service.

Materials

• Product Wetted: Stainless Steel, ASTM 316L (UNS-S31603); (DIN-1.4404)
• Non-Product: Stainless Steel, ASTM 304 (UNS-S30400); (DIN-1.4301)
• Seat: Tri-Ring Compression Seal on Upper and Lower Stems, TFM availability
• Elastomers: EPDM or FKM (Fluoroelastomer)
• Finish: ≤ 32 Ra (≤0.8 µm) Other finishes available upon request.
• Available Configurations: Shut-off, Divert, Horizontal, Tank Outlet

Pressure Ratings:

Operating Pressure:

1½"-3" Sizes - 150 psig (10.3 bar)
4" Size - 100 psig (6.9 bar)
4" Sch. 5 Size - 150 psig (10.3 bar)
6" Size - Consult Factory
6" Sch. 5 Size - 150 psig (10.3 bar)

Other W71 Valves:

• W71 Brewery Double Seat Mix Proof (Schedule 5 piping)

3D Single Seat and Mix Proof Valve Drawings

• 60 Series and 70 Series, upper and lower bodies and accessory Drawings

2D Single Seat and Mix Proof Valve Drawings

• 2D 60 Series and 70 Series Drawings

Product Literature:

• DS-1220, W71 & W73 Double Seat Mix Proof Valves, in pdf format 3,000KB, 8 pages

• DS-1205, Mixproof Valve Key, in pdf format 1,285KB, 8 pages

• DS-1221, W72 RS Double Seat Mix Proof Valves, in pdf format 1,800KB, 4 pags

• DS-1222, W75 Series PMO Compliant Mix Proof Valves, in pdf format 1,400KB, 8 pages

• DS-1225, W72 RSP Mix Proof Valve for Particulates Data Sheet, in pdf format 335KB, 4 pages
  
  
• FH-1835, W70 Series Mix Proof Valves flyer, in pdf format 340KB, 2 pages
  
  
• FH-1861, W72RSP Mix Proof Valve for Particulates flyer 150KB, 1 page
  
  
• FH-1872, W75CP PMO Double-Seat Mix Proof Valve for Continuous Processing Brochure 765KB, 4 pages

• 95-03076 - W75RS PMO Double Seat Mix Proof Valves with the W-Series 2-Piece Control Module Manual 1,600KB, 36 pages
  
  
• 95-03077 - W-Series Control Top Manual 2,600KB, 48 pages
  
  
• 95-03083 - W-Series, 2-Piece Control Top and Switch-Only Options Manual 4,780KB, 46 pages
  
  
• 95-03087 - W-Series Mix Proof Valves (in O.D. Tubing Sizes) W71, W72RS, and W73 Manual 2,500KB, 74 pages
  
  
• 95-03094 - Mix Proof Valves (in O.D. Tubing Sizes) W75CP PMO Mix Proof Valve Manual 1,670KB, 34 pages