Продукция RF Valves

SKG Flanged
The heavy duty slurry knife gate valve shall be a flanged, bi-directional valve with a packingless design. The full port bore shall be formed by two heavy duty elastomer sleeves, one on either side of the gate. Each sleeve shall have a J-ring design stiffener to maintain the shape of the sleeve. Upon closing, the gate will progressively separate the sleeves and once fully closed, will form a bubble tight seal with the upstream sleeve. The yoke shall consist of two yoke plates that fully enclose the gate, spindle and clevis to protect these components from slurry splatter. The yoke design will allow for easy mounting of proximity or limit switches. Steel proximity switch covers must be provided to prevent damage during transport and operation. Provision must be made for lockouts in the open and closed position with open and closed indicators. The top bracket must accept manual, pneumatic or electric actuation for easy conversion in the field.

SKG Wafer
The heavy duty slurry knife gate valve shall be a wafer style, bi-directional valve with a packingless design. The full port bore shall be formed by two heavy duty elastomer sleeves, one on either side of the gate. The roundness of the sleeve shall be maintained by an embedded stiffener ring near the sealing face and a steel disc on the mating face. Upon closing, the gate will progressively separate the sleeves and once fully closed, will form a bubble tight seal with the upstream sleeve. The yoke shall consist of two yoke plates that fully enclose the gate, spindle and clevis to protect these components from slurry splatter. The yoke design will allow for easy mounting of proximity or limit switches. Steel proximity switch covers must be provided to prevent damage during transport and operation. Provision must be made for lockouts in the open and closed position with open and closed indicators. The top bracket must accept manual, pneumatic or electric actuation for easy conversion in the field.

LW Ductile Iron — Soft Rubber Lined
The knife gate valve will be of wafer style and semi lugged design with the bore and connecting faces soft rubber lined. The design will allow for bi-directional flow against maximum operating pressure. The body seal must be fully moulded with a lip seal and must be mechanically retained in the valve body. The gate’s sides must remain in contact with the body seal during opening and closing of the valve and the gate must be guided by the valve body. The sealing to atmosphere must be achieved through a combination adjustable stuffing box acting as the primary seal and a secondary transverse seal. The internal bore will include self-cleaning flush out corners and there will be no seat pockets or cavities in the bore for media to settle in. The valve must incorporate PTFE scrapers to keep the blade free from any foreign matter over the whole width of the gate during operation.

MH Ductile Iron — Soft Rubber Lined
The knife gate valve will be of wafer style and mono ring flanged with the bore and connecting faces soft rubber lined. The design will allow for bi-directional flow against maximum operating pressure. The body seal must be fully moulded with a lip seal and must be mechanically retained in the valve body. The gate’s sides must remain in contact with the body seal during opening and closing of the valve and the gate must be guided by the valve body. The sealing to atmosphere must be achieved through a combination transverse seal acting as the primary seal and a secondary adjustable stuffing box seal. The transverse seal must be repackable under full line pressure in the open and closed position while the stuffing box seal must be replaceable, with the valve in the fully open position. The internal bore will include self-cleaning flush out corners and there will be no seat pockets or cavities in the bore for media to settle in. The valve must incorporate PTFE scrapers to keep the blade free from any foreign matter over the whole width of the gate during operation.

MLB Ductile Iron — Fusion Bonded Epoxy
The knife gate valve will be of wafer style and mono ring flanged with a fusion bonded epoxy coated ductile iron body. The design will allow for bi-directional flow against maximum operating pressure. The body seal must be extruded and must be mechanically retained in the valve body. The gate’s sides must remain in contact with the body seal during opening and closing of the valve and the gate must be guided by the valve body. The sealing to atmosphere must be achieved through a combination transverse seal acting as the primary seal and a secondary adjustable stuffing box seal. The transverse seal must be repackable under full line pressure in the open and closed position while the stuffing box seal must be replaceable, with the valve in the fully open position, under full line pressure. The internal bore will include self-cleaning flush out corners and there will be no seat pockets or cavities in the bore for media to settle in. The valve must incorporate PTFE scrapers to keep the blade free from any foreign matter over the whole width of the gate during operation.

PB
Heavy duty ported blade knife gate valve shall be a wafer, bi-directional valve with flushing abilities. The bore shall be formed by two heavy duty elastomer sleeves, one either side of the gate integrally moulded with a stiffener ring. The stiffener ring shall maintain the shape of the sleeve. The sleeves shall be compressed between the pipe flanges once installed.