2.5MPa Dark Bar Resilient Seated Gate Valve with 50-1000mm Diameter Range for Water and Industrial Applications
The 2.5MPa Dark Bar Resilient Seated Gate Valve features a plastic deformation compensation package that achieves superior sealing performance, effectively overcoming common issues of poor sealing, leakage, and rusting. This design saves valuable installation space while providing reliable flow regulation and shut-off capabilities for water, sewage, construction, petroleum, chemical, food, pharmaceutical, textile, electric power, shipbuilding, metallurgy, and energy systems.
Nominal Pressure: 1.0-2.5MPa
Operating Temperature: 0-80°C
Diameter Range: 50-1000mm
Flange Standards: GB/T 17241.6, GB9113
Test Standards: GB13927, AP1598
| Component | Material |
|---|---|
| Valve Body | Gray Cast Iron, Nodular Cast Iron, Cast Steel |
| Wedge | Ductile Iron + EPDM Rubber |
| Stem | Stainless Steel (2Cr13/20Cr13) |
| Stem Nut | ZCuAl10Fe3 Gunmetal |
| Bonnet | Gray Cast Iron, Nodular Cast Iron, Cast Steel |
| Gland | Ductile Cast Iron |
| Sealing Rings | EPDM/NBR |
| Handwheel | Ductile Cast Iron |
- Triple Stem Sealing: Three independent seals with NBR wiper ring, polyamid bearing with 4 O-rings, and EPDM rubber manchette
- Fixed Wedge Nut: Dezincification-resistant brass with lubricating properties
- Vulcanized Wedge: Ductile iron core fully vulcanized with drinking water approved EPDM rubber
- Corrosion Protection: Epoxy coating to DIN 30677-2 and GSK guidelines
- Full Bore Design: Smooth continuous bore without seating recess
- Pressure-Resistant: Round rubber bonnet gasket prevents blow-out during pressure surges
- Replaceable Seals: O-rings replaceable under pressure without stopping water flow
European Standards: EN 1074-1 and 2 / EN 1171
American Standards: ANSI/AWWA C509, ASME B16.10-2000, ASME/ANSI B16.42-1998
British Standards: BS5163, BS5150, BS4504 part1(EN1092)
German Standards: DIN3352, DIN3202
WRAS Approval: EPDM rubber parts certified for drinking water applications
Widely used in water supply, sewage disposal, electric power, chemical processing, shipping, energy systems, and industrial fluid control applications.
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