Floating
model A21C
Model A21C is the cryogenic execution of the Valland floating ball valve, for small bore low-temperature duties from 1/2" to 8". Construction materials are selected among stainless steels, 6Mo, nickel alloys and titanium for low-temperature toughness; the valve features live-loaded stem packing, anti-blowout stem and antistatic device.
As with the whole cryogenic range, valves can be tested at -196 °C per BS 6364 in-house, and are fire safe per API 6FA/API 607/ISO 10497 with fugitive emission testing per ISO 15848. Typical use is on LNG and cold process small bore lines, in manual execution with lever or gearbox.
| Applicable standards | API 6D Design according to ASME B16.34 or ASME VIII Div. 1 & 2 |
| Pressure Class Range | ANSI Class 150 lbs. to 4500 lbs. |
| Size Range | From 1/2" to 8" |
| Ends design | Flanged (RF/RTJ) - ASME B16.5, ASME B16.47 or MSS SP-44 Compact (Norsok Standard L-005) Butt-Weld (ASME B16.25) and/or Butt-Weld + Pipe Hubbed according to client Clamp Special client's requirements |
| Body Design | Two or Three Pieces |
| Closure Design | Bolted Closure |
| Seat design | Soft Sealing - Metal to Metal (c/w hardfacing) |
| Valve operation | Manual: Lever or Gearbox |
| Available Materials | SS, 6Mo, Inconel, Incoloy, Hastelloy, Monel, Titanium NACE MR0175 according to client request. |
| Additional Features | Anti Blowout Stem, Antistatic Device |
| Testing and Certification | Testing: Hydrostatic, High Pressure Gas, Pneumatic and Functional API 598 - API 6D Fire testing: API 6FA, API 607, BS 6755 part 2, ISO 10497 Fugitive Emission Test: ISO 15848 - 1 & 2 PED 2014/68/UE Mod.H |
