Closures
Closures
S-500 THREADED QUICK OPENING CLOSURE
The S-500 Threaded Quick Opening Closure is a robust, industry proven solution for safe and efficient pipeline access. Designed for oil and gas service, it combines cost effective construction with enhanced operator control and sealing performance.
Design & Construction
- Threaded quick opening design
- Proven robust closure style widely used in oil and gas
- Flat sealing surface for improved seal performance
- Bidirectional hinge design allowing left or right opening
- Pressure Alert Valve standard on 6 inch and larger sizes
- Cap designed in accordance with ASME Section VIII Div. 1
Sizes & Pressure Ratings
- Available in diameters from 2 inch through 52 inch
- Pressure series 150 through 2500
- Maximum test pressure 1.5 times design pressure
- Designed to ASME B31.3, B31.4, B31.8, and CSA Z662 Category I
- Temperature range minus 50°F to plus 400°F
Materials & Options
- NACE MR0175 compliant materials available
- Stainless steel and Inconel weld overlay options
- Custom wall thickness and vent configurations
- Horizontal, vertical, inclined, or declined hinging
- Specialty O-rings available upon request
S-2000 CLAMP RING QUICK OPENING CLOSURE
The S-2000 Clamp Ring Quick Opening Closure is engineered for pipeline applications requiring fast, safe, and repeatable access. Certified to major pipeline standards, it delivers operator focused safety with robust clamp style construction.
Design & Construction
- Clamp ring style quick opening closure
- Large cross section O-Ring for positive sealing and debris protection
- Pressure Alert Valve design
- Through bores on all wall thicknesses
- User friendly component placement
- Viton O-Ring supplied standard
Sizes & Pressure Ratings
- Available from 2 inch through 48 inch diameter
- Certified to ASME B31.3, B31.4, B31.8, and CSA Z662 Category II
- 1480 MAWP with 0.5 and 0.6 design factor
- Maximum test pressure 1.5 times design pressure
- Temperature range minus 50°F to plus 400°F
Standards & Options
- Door designed per ASME BPVC Section VIII Div. 1
- U-Stamp compliant door option available
- NACE MR0175 compliant materials
- Flanged welded connection option
- Screw opening assist and load binder options on larger sizes
- Custom wall thickness, vents, specialty materials, and O-Rings available
S-3000 INTERNAL DOOR QUICK OPENING CLOSURE
The S-3000 Internal Door Quick Opening Closure features a proven internal locking ring design that provides secure, fail safe sealing in pipeline and pressure vessel applications. Manufactured in diameters from 6 inch through 84 inch, it is engineered for long term durability in demanding oil and gas service.
Design & Construction
- Internal door design with sliding locking ring mechanism
- Locking ring expands into the outer hub to secure the door
- Durable actuation components designed for long term operation
- O-Ring or Lip Seal configuration depending on size and pressure
- Fail safe design
- Available in horizontal or vertical orientation
Sizes & Pressure Ratings
- Diameters from 6 inch to 84 inch
- Series 150 up to 285 PSI MAWP
- Series 300 up to 740 PSI MAWP
- Series 600 up to 1480 PSI MAWP
- Maximum test pressure 1.5 times design pressure
Materials & Options
- Certified to ASME B31.3, B31.4, B31.8, and CSA Z662 Category I
- Door designed per ASME BPVC Section VIII Division 1
- Pressure Alert Valve per UG-35.2
- NACE MR0175 compliant materials
- Stainless steel, duplex, and super duplex options
- Inconel or stainless weld overlay
- Hydraulic lift option on vertical closures
- External hinge trim for offshore use
Stark Regional Oil & Gas Valve Support
Triple S Solutions provides exclusive regional representation across the Mountain West and Northern Plains. Supporting upstream and midstream operations with proven valve, closure, and flow control product lines.
We operate in the field. We understand the basins. And we support distributors and OEM partners with decisive, territory-driven service.
- Colorado
- Montana
- New Mexico
- North Dakota
- South Dakota
- Utah
- Wyoming
Connect with our regional sales team for fast quoting, project support, and direct access to factory resources.
Primary basins served: Bakken, Williston, DJ, Powder River and Green River.
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