Nodular Cast Iron gate valves with fully rubbered wedge are design for closing / opening the flow of drinking water or nonaggression sewage at the tempreature of 70C and the pressure up to 16 bar.
On request gate valves may be adapted to water at the temperature of 110C, pressure 10 bar.
Closing of the gate-valve proceeds by means of a hand wheel and turning the hand wheel in the clockwise direction (when facing the top of the valve).
On the Purchaser's request, the anticlockwise closing is also avaliable.
All the gate valves specified in this leaflet may be installed into either horizontal or vertical pipelines.
Application
Face to face dimension: series 14 acc. to PN-EN 558-1; F4 according to DIN 3202
Flanged end connections: PN-EN-1092-2;ISO 2531; DIN 2501
Drilling of flanges: PN 10/16
Protective coating: powder epoxy coating or acc. to buyer's request:polyester or polyurethane
Coating thickness: 250um or acc. to buyer's request.
Specification
Component
Material
Body
EN-GJS-500-7
Bonnet
EN-GJS-500-7
Resilient wedge
EN-GJS-500-7 / NBR or EPDM
Stuffing-box
EN-GJS-500-7
Monolithic stem with symmetrical trapezoid thread
X20Cr13
Stem nut
CuZn39Pb2
Threaded bush
CuZn39Pb2
Body bonnet seal
NBR lub EPDM
Bonnet stuffing-box seal
NBR lub EPDM
Stem sealing
NBR lub EPDM
Internal wrenching bolts sealed with sealing compound
