Closures
S-500 THREADED QUICK OPENING CLOSURE
Proven threaded closure designed for safe, dependable access to pipelines and pressure vessels. Modified ACME threads, a removable Pressure Alert Valve, flat sealing surfaces, and supplied opening tools improve operator control while reducing hammering and supporting reliable O-ring performance.
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Highlights
- Sizes 2″ to 52″ (DN 50 to DN 1300)
- Pressure Series 150 to 2500
- ASME B31.3, B31.4, B31.8, and CSA Z662 Cat. II
- ASME BPVC Section VIII Division 1 compliant cap
- Modified ACME thread engagement for added safety
- Pressure Alert Valve on sizes 6″ and larger
- Flat sealing surfaces with industry-standard O-ring
- Horizontal, vertical, inclined, or declined installation
- Temperature range -50°F to 400°F
Application
- Pipeline and pressure vessel access
- Oil and gas processing equipment
- Pig launcher and receiver access points
- Horizontal or vertical vessel installations
- Applications requiring robust threaded closures
- Sweet or sour service environments
S-2000 CLAMP RING QUICK OPENING CLOSURE
Fast-operating clamp ring closure designed with operator safety and sealing reliability in mind. The horizontally hinged door, integrated Pressure Alert Valve, true through bore, and protected large cross-section O-ring provide secure, user-friendly access for demanding pipeline applications.
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Highlights
- Sizes 2″ to 64″ (DN 50 to DN 1600)
- Up to 1480 PSI MAWP with 0.5 and 0.6 design factors
- ASME B31.3, B31.4, B31.8, and CSA Z662 Cat. II
- ASME BPVC Section VIII Division 1 compliant design
- Horizontally hinged door keeps operator out of the opening path
- Pressure Alert Valve secures the clamp in the closed position
- Large cross-section O-ring protected from tools and debris
- True through bore across all wall thicknesses
- Temperature range -50°F to 400°F
Application
- Pipeline access and maintenance
- Pig launcher and receiver closures
- Horizontal pressure vessel openings
- Oil, gas, and produced water systems
- Applications requiring rapid, repeatable access
- Sweet or sour service environments
S-3000 INTERNAL DOOR QUICK OPENING CLOSURE
Versatile internal door closure designed for a wide range of sizes, pressures, and orientations. An expanding lock ring secures the door within the hub, while the fail-safe design, Pressure Alert Valve, and durable operating components provide smooth, dependable access.
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Highlights
- Sizes 6″ to 84″ (DN 150 to DN 2100)
- Pressure Series 150 to 2500
- ASME B31.3, B31.4, B31.8, CSA Z662 Cat. II, and ASME Section VIII
- Internal expanding lock ring design
- Fail-safe door remains wedged within the hub
- Large cross-section O-ring or lip seal configurations
- Horizontal and vertical orientation options
- Load binder assist on horizontal sizes 24″ and larger
- Temperature range -50°F to 400°F
Application
- Large-diameter pipeline access
- Pressure vessels and process equipment
- Pig launcher and receiver closures
- Horizontal or vertical installations
- Offshore and corrosive service configurations
- High-pressure oil and gas applications
Regional Oil & Gas Valve Support
Elkhorn Valve & Equipment 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 understand the basins and we support distributors and OEM partners with decisive, territory-driven service.
- Colorado
- Iowa
- Kansas
- Montana
- New Mexico
- Nebraska
- 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, Green River and Uinta.
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