FIG740
FIG 740 is designed to meet the requirements of a general purpose
bi-directional shut-off valve. An elastomer seal is held in a groove in the
single-piece cast body and provides peripheral sealing of the gate edge.
Since there is no raised seat or pressure-assisted sealing as in conventional
uni-directional knife gate valves, FIG 740 provides zero leak bi-directional
shut-off from minimum pressure to the rated pressure.
Port opening is same as for schedule 40 pipe thereby offering unrestricted
flow and minimum pressure drop.
SPECIFICATIONS TYPE : Bi-directional gate valve
SIZE RANGE : 50mm to 600mm (higher sizes on application)
PRESSURE RATING : CWP-10 bar
ENDSTYLE : Full lug
FACE-TO FACE : As per MSS SP-81
DRILLING : Suitable for mounting between flanges drilled to ANSI 150lb (standard); others on request.
BODY : Stainless steel; carbon steel. Others on application
SEAT : Replaceable, elastomer cord seal; chloroprene standard; max. service temp - 80 deg C
GATE : 304/316 stainless steel plated is standard; others on request
STEM : 304 st. steel standard; others on request
SUPERSTRUCTURE : Steel yoke, epoxy coated standard; others on request
ACTUATOR OPTIONS : Direct mounted rising stem hand wheel standard; non-rising hand wheel, chain wheel, geared hand wheel, pneumatic cylinder and electric actuator options available
SPECIAL : Can be provided with bolt-on bonnet where required
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