Standard and bolted bonnet all stainless steel knife gate valves for low emissions
All stainless steel design
Standard knife gate valves: NPS 2–24 (DN 50–600)
Bolted bonnet knife gate valves: NPS 4–24 (DN 50–600)
ASME Classes: 1690-4500
0-14ph packing standard
Locking device on standard knife gate valve
Environmentally friendly bi-directional bolted bonnet and standard body styles
Resilient and metal seats
Velan's proven pressure seal design.
No penetration of hinge pin to outside eliminating possibility of pin seal leakage and allowing for in-line service.
Compact cage unit: all moving parts are attached to the carrier and can be removed easily for service.
Forged seat/disc is CoCr alloy, ground and lapped to a mirror finish for maximum erosion resistance and long service life. It is seal-welded to the body.
Disc can partially rotate for tight shutoff. In the fully open position, it rests against a stop.
CoCr alloy bearings for hinge pin.
Easy in-line service. All parts are easily accessible for maintenance. Seating faces can be re-lapped.
Forged bonnet.
Velan globe valve’s top and bottom-guided disc assures stem operation without side thrust caused by high pressure flow. The non-rotating stem results in lower friction of all moving parts and longer stem packing life. All this resulting in smooth, easy operation and tight shutoff under extreme pressures.
A complete range of gate, globe, and check valves for all of your high pressure and high temperature applications, proven over years of service in conventional thermal and nuclear power plants as well as other HP steam services around the world. Also preferred in high pressure, high temperature hydrocarbon or petrochemical processing services. Only Velan offers the advantages of one-piece forged valves in sizes up to 24" (600 mm).