Figures 310 and 312 K-LOK® High Performance Butterfly Valves

Description
Specifications
Documentation

Butterfly Valves, High Performance, Metal Seated, Keystone K-LOK Figure 310/312 High Performance Butterfly Valve

Figures 310 (wafer) and 312 (lug) high performance valves are well suited for high performance applications such as low pressure steam, chilled water, and air.

Features & Benefits:

Uninterrupted gasket surfaces help eliminate problems associated with seat retaining screws in the gasket surface and allows use of standard spiral wound gaskets.
Unique interference seat design with energized elastomer O-ring allows bi-directional ANSI Class VI shut-off at lower pressures. The seat is further energized by line pressure, providing the same tight bi-directional shut-off at full-rated pressure.
Heavy duty circular key holds the seat and retaining ring in place, providing bi-directional, dead-end service at full-rated pressure. This helps eliminate the need for easily corroded and hard-to-remove retention screws.
Valve stem designed to API 609 standards is blow-out resistant.
Seat retaining ring is housed within the flange gasket ID to eliminate potential emission path.
Face-to-face conforms to MSS SP-68 and can be configured to ISO 5752 short.
Adjustable packing utilizes unique rocker-shaped gland bridge that compensates for uneven adjustment of gland nuts.
Extended neck allows for two inches of clearance for insulation.

Specifications
Industry Compliance:
ASME B16.34
API 609
MSS-SP68
CRN Registration
PED Compliant in some configurations

Technical Data
Size Range: 2" to 12" [50 to 300 mm]
Rating: ASME Class 150
Pressure: 285 psi bi-directional, dead-end
Vacuum: 50 microns
Temperature: -20°F to 350°F

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產(chǎn)品名稱：310和312K高性能蝶閥

Figures 310 and 312 K-LOK® High Performance Butterfly Valves

Features & Benefits: