OP5600
High Performance, O-Port
Class 150
Knife Gate Valve
The OP5600 is a high performance, O-Port style knife gate valve specifically designed for use in severe service applications in the pulp & paper, chemical, mineral processing, and power generation industries. The through conduit design with pressure assisted seat and dual transverse seals, provides reliable, bidirectional shutoff in various applications such as slurries, dry materials, static columns, high consistency stock, wood chips, and highly viscous fluids.
Please contact us for pricing and availability.
Product Information
Sizes Available
- 2” to 24”(50mm to 600mm)(larger sizes available on request)
Pressure Rating
- ASME Class 150
Temperature Rating
- EPDM: –22°F to 300°F (–30°C to 150°C)
- Viton B: 5°F to 392°F (–15°C to 200°C)
- Viton GFLT: –40°F to 392°F (–40°C to 200°C)
- AFLAS: 14°F to 446°F (–10°C to 230°C)
- Buna-N (NBR): –22°F to 212°F (–30°C to 100°C)
- Polyurethane: –40°F to 176°F (–40°C to 80°C)
- FFKM: –4°F to 572°F (–20°C to 300°C)
Standards & Approvals
- Design: MSS SP-135, ASME B16.34
- Flanges: ASME B16.5, B16.47 Series A
- Testing: MSS SP-151, API 598
- Markings: MSS SP-25
- Mounting: ISO 5211
- Quality: MSS SP-55, ISO 9001:2015
- Registration: CRN
Features & Benefits
- Through Conduit design ensures reliability on static columns and dry materials
- Spring loaded seat design provides improved process sealing
- Full port opening allows maximum throughput and minimizes pressure drop
- Transverse seal design with scrapers reduces material build-up and provides reliable sealing
- Oversize flushing ports allow elimination of material buildup
- Lockout pin and safety covers, included as standard, ensures operator and maintenance safety
- High visibility clevis provides easy identification of valve position
- Provision for proximity sensors allows easy integration for position feedback
- ISO 5211 mounting pattern allows direct mounting of various actuation options
- Grease fitting on handwheel bearing reduces operating torques


























