Expanding Gate Valves
Serve petroleum, gas, chemical, water, and slurry applications with an emphasis on reliability, safety, and positive shut-off.
Size Range
2" – 48"
Class Range
150 – 2500
Temperature Range
-29°C to 190°C (-20°F to 374°F) standard; -46°C to 210°C (-50°F to 410°F) low-temp; higher available on request
Reference
Design Standard
- API 6D
- ASME B16.34
Face to Face
- Flanged ends: API 6D, ASME B16.10
- Welded ends / adapting flange: ASME B16.34, MSS SP-44
- Butt weld ends: ASME B16.25
Inspection
- API 6D
- ISO 5208
Design Features
- —Full bore for pigging, with extended seat-ring seal life versus a slab gate valve of similar size
- —Hand-wheel-actuated gate expansion produces a tighter seal as torque increases, independent of line pressure
- —Internal/external cavity pressure relief system option
- —Lower operating torque than an equivalent slab gate valve
- —Primarily used in high-temperature refinery, power plant, and critical pipeline isolation service
Materials Available
Casting Material
- WCB
- LCB
- WC6
- WC9
- C5
- C12
- CF3
- CF3M
- CF8
- CF8M
- C95500
- 4A
- 5A
- Inconel 825/625
Forging Material
- A105
- LF2
- F11
- F12
- F304
- F321
- F347
- F316
- 304L
- 316L
- C61900
- F51
- F53
- F55
- Inconel
Literature
Select what you'd like below and we'll email you secure download links.
Catalogue
Snapshot & One-Pager
Unique to Ranger
High-Pressure Pneumatic Shell Test
For all cast steel gate, globe, and check valves, as well as cast trunnion and floating ball valves, RANGER-FZV submerges the completed, uncoated valve in water and pressure tests the casting with nitrogen or compressed air. Pinholes or casting deficits invisible to a standard hydrotest are revealed as bubbles in the water — castings have failed this test after passing hydrotest.
View full Casting Quality program →