Drinkwater Products

S-2000 Clamp Ring Quick Opening Closure

The S-2000 Clamp Ring Closure is manufactured primarily for pipeline applications ranging from 4” to 48” (DN100 to DN1200) in diameter. We understand the variety of needs that pipeline applications require and as a standard, all closures are certified to ASME B31.3/B31.4/B31.8/CSA Z662 Cat. I with a 0.5/0.6 design factor. High quality components placed in user-friendly locations and features that keep safety priority, and the operator in focus makes the S-2000 an appealing Clamp Style Closure option. 


  • Certified to ASME B31.3/B31.4/B31.8/CSA Z662 Cat. I
  • 1480 M.A.W.P with 0.5 & 0.6 design factor
  • O-Ring location outside the working area protects from tools and debris
  • Pressure alert valve design without the need for O-Ring
  • Through bores on all wall thicknesses
  • Increased structural strength on the hub for warpage prevention


  • Door designed per ASME BPVC VIII DIV. 1, U-Stamp compliant
  • Pressure alert valve per UG-35.2 of ASME BPVC VIII DIV. 1
  • Clamp screw opening and door load binder assist on 32″ to 48″ (DN800 to DN1200) closures
  • Nace MR0175 compliant material
  • -50° to + 400°F (-45° to 204°C)
  • Viton O-Ring supplied with closure


  • Flanged closure – welded connection or one-piece
  • ASME BPVC VIII Div. 1 with U-Stamp for the door only or full closure (door, hub, and clamp ring)
  • Clamp screw opening assist and load binder on 24″ to 30″ (DN600 to DN750) Closures
  • Custom wall thickness, vents, and other modifications
  • Special materials and O-Rings
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