Orbinox Uni-Directional Heavy Duty Stainless Steel Knife Gate Valve (ET Series)
The Orbinox ET Knife Gate Valve range is a heavy-duty, Stainless Steel, Uni-Directional, fully lugged, fully ported, non-clog knife gate valve, with Rising Stem and designed according to MSS SP-81 & TAPPI TIS 405-8.
Typically used for isolation duties in general industrial service applications, the Orbinox knife gate valve can be supplied with a Metal/Metal seat or a unique, replaceable, resilient seat design with a reinforced, Stainless Steel retainer ring that mechanically locks the seal into the body. Various material options and seat arrangement designs can be selected including material deflection cones, high performance rings and for high temperature and high-density media applications. All ensure secure Uni-Directional shut-off and the internal design of the body ensures a non-clog performance with a media of suspended solids, including Pulp & Paper, Food & Beverage, Raw Sewage, Sludges and Slurries.
Supplied with an AISI 430 Stainless Steel, Rising Stem as standard and a compact and extremely robust, Carbon Steel Yoke with AISI 304 Stainless Steel option, it can be supplied with DIN (EN 1092-2) PN10 or ANSI Class 150 flange connections, in sizes from DN50 up to DN900. Larger sizes are available as are alternative flange connections, a Non-Rising Stem option and Epoxy Coated, Carbon Steel Yoke option.
Available in a one piece, precision machined CF8M Stainless Steel cast body as standard, the ET model, is reinforced with ribs in larger diameters and includes internal cast-in guides and gate wedges allowing for a tighter gate/seat shut-off. This results in a fully guided gate and assured Uni-Directional shut-off, minimising the chance of gate seizure due to a build-up of solids over time. For finer solid applications, flushing ports can be added and depending on the process, purging can be achieved using steam, air or other liquids. All sizes of bodies are full ported for maximum flow capacity and minimal head loss and come fitted as standard with Rising Stem Protector. Larger sizes are available on request along with 60° or pentagonal V-Port design options dependent on the type of fluid control required.
The Stem is Stainless Steel whilst the gate, in AISI 316 as standard, is polished on both sides, lapped and supplied with a bevelled edge, specifically to cut through solids. This avoids seat damage, jamming of the gate and optimises the seal between the gate, seat and packing.
The packing, as standard, is PTFE impregnated synthetic fibre with an EPDM O-ring for long-life performance and is easily adjustable with an accessible Gland Follower. A bonnet with atmospheric sealing for greater packing protection is available along with other Stem, Gate & Packing Materials so please contact the Office to discuss your particular application for design optimisation.
Orbinox Uni-Directional Heavy Duty Stainless Steel Knife Gate Valve Features:
- Uni-Directional Heavy Duty Knife Gate Valve
- Sizes DN50 up to DN900
- Up to 10 Bar working pressure
- Standard Flange Connection DIN (EN1092-2) PN10 & ANSI150
- Designed to MSS-SP-81 and TAPPI TIS 405-8
- A range of operators and Non-Rising Stem available
- CF8M Body as standard with special alloy options
- Stainless Steel Polished Gate in 316 with Bevelled edge
- Metal to Metal or Multile Resilient Seat options
- A wide range of long life packing materials
- Protective Bonnet, V-Port & Flush Ports options available
- Directives: MACHINES / PED / ATEX
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