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Clamp Ring Closures

S-2000 Clamp Ring Quick Opening Closures

The S-2000 Clamp Ring Closure is manufactured primarily for pipeline applications ranging from 2” to 48” (DN50 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 
  • Large cross section O-Ring design provides positive seal and protection from tools and debris+
  • Pressure Alert Valve design without need for O-Ring
  • Through bores on all wall thicknesses 

  • Clamp Ring Closure S 2000 1

    Clamp Ring Closure S 2000 1

  • Clamp Ring Closure S 2000 2

    Clamp Ring Closure S 2000 2

  • Clamp Ring Closure S 2000 3

    Clamp Ring Closure S 2000 3


  • 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 assist 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 door only or full closure
  • Screw opening assist and load binder on 24” to 30” closures (DN600 

to DN750) closures

  • Custom wall thickness, vents, and other modifications
  • Special Materials and O-Rings

Part Guide