Features

DongsanValve’s Cast steel valve are constructed with design of API 600, ASME B16.34 & API 6D. And It’s built up with BS 1873 additionally for Globe valve. Bolted Bonnet, Outside Screw & Yoke is applied to Globe valve basically. Rising handwheel to be provided.

Standard trim is API trim 8 for carbon steel valves, API trim 5 for chrome alloy valves, and API trim 10 for CF8M (T316) valves for optimal performance under normal conditions. Other trim materials available on request. Wall thickness per heavy wall API 600 requirements.

Seat faces lapped for smooth finish and superior sealing. Swivel disc for optimal seating and longer seat life. Stems of hand wheel operated valves are rotating / rising design. Each valve is shell, seat and backseat pressure tested per industry standard API 598. Gland is two piece gland / gland flange design for optimal alignment and uniform packing compression.

End Flanges have the following raised faces per ASME B16.5: Classes 150-300: 1/16” (2mm) Classes 600-1500: 1/4” (7mm). Weld ends are available per ASME B16.25 or per customer’s specification.

Impactor hand wheel design standard on the following sizes to assist seating.

8” to 12” class 150
6” to 12” class 300
4” to 10” 600

For larger sizes or pressure classes, gears are standard.

Each valve has a unique certification number that is traceable to the valve certification sheet which includes MTR data, pressure test, inspection result and certificate of conformance.

Other available options as follows:

-Alternate valve materials such as chrome and stainless steel alloys
-Alternate trim materials
-Bypass, drain and other auxiliary connections
-Gear, motor, and cylinder actuators available
-NACE service
-Special cleaning for applications such as oxygen or chlorine
-Other options available as specified

Specifications

Bolted Bonnet/ Plug type Disc/ Outside Screw & Yoke/ Full Port/ Flanged Ends or Butt-weld Ends/ Operators : Handwheel, Gear or Actuator

- Size Range : NPS 2(DN 50) to NPS 30(DN 750)
- Pressure Rating : ASME Class 150 to 2500
- Wall Thickness & General Design Code : API 600, ASME B16.34
- Face-to-face or End-to-end : ASME B16.10
- Flanged End : ASME B16.5 Flanged End, RF/RTJ
- Buttwelding End : ASME B16.25
- Valve Inspection and Test : API 598
- Materials : CS, LTCS, SS & Duplex, Etc..