model A11 (Hydrogen)

Applicable standards API 6D Design according to ASME B1634 or ASME VIII Div. 1 & 2
Pressure Class Range ANSI Class 150 lbs. to 4500 lbs.
Size Range API 6D - from 1/2" to 42"
Ends design Flanged (RF/RTJ) - ASME B165, ASME B1647 or MSS SP-44
Flanged (6B/6BX) - API 6A
Compact (i.e. Norsok Standard L-005)
Butt-Weld (ASME B1625) and/or Butt-Weld + Pipe
Hubbed according to client Clamp
Special client's requirements
Body Design Two Pieces
Closure Design Bolted Closure or Fully welded
Ball support Trunnion (small sizes < 4") - Support Plates
Seat design Floating Self-Relieving - Floating Double Piston Effect
Soft Sealing - Metal to Metal (c/w hardfacing)
Valve operation Manual: Lever or Gearbox
Actuated: Pneumatic / Hydraulic / Electric / Electro-Hydraulic
Available Materials UNS S31600/3, UNS S31254, UNS S20910 and UNS S66286.
Proper material selection verifed by Valland material experts.
NACE MR0175 according to client request.
Additional Features Double Block and Bleed, Double Isolation Barrier (DIB), Anti Blowout Stem,
Antistatic Device, Special gasket to avoid contamination from environment.
Testing and Certification Testing: High Pressure Gas, Pneumatic and Functional
Test in hydrogen environment according to client specifications
API 598 - API 6D
Fire testing: API 6FA, API 607, BS 6755 part 2, ISO 10497
Fugitive Emission Test: ISO 15848 - 1 & 2
SIL Certificate up to SIL 3
PED 2014/68/UE ModH - UKCA - TSG (upon request)