SSTMS4 Trunnion Mounted 3-way Ball Valve Range

3-way Soft seated trunnion valve, designed to ASME and API specifications, with a bore of 13mm up to 25mm. This Subsea valve range is designed for superb sealing for up to a depth of 10,000ft.

UNI Directional Flow
Servicing Kits
Severe Temp Rating
NACE Approved
Specifications & Ratings
The SSTMS4 range offers a single block 3 way design to API specifications with threaded connections. The in-house design team can accommodate most requirements.
Valve Types
Single Isolate,Single Block and Bleed,Double Block and Bleed
Pressure Rating
Up to ASME Class 2500
Temperature Rating
-29°C up to 121°C
Bore Size
13mm - 25mm
Connection Size
1/4" - 6"
  • NPT
  • BSPP
  • BSPT
  • Butt Weld
  • Socket Weld
  • Flanged
1/4" - 6"
  • Lever
  • ROV
Material Options
Materials include forged stainless steels, Duplex and Super Duplex. Other exotic materials available upon request.
Material Construction
  • Stainless Steel 316
  • Monel
  • Duplex
  • Super Duplex
  • 6Mo
  • Titanium
  • Hastalloy
  • Inconel
  • Incoloy
  • Carbon Steel
  • Other Materials can be made available upon request
Trim Material
  • All trim materials are made from corrosion resistant materials.
Bolting Materials
Standard bolting grades as required.
Material Traceability
Testing & Design Standards
All Alco Valves Group products are designed to comply with or exceed internationally recognised products. API 6A PR2 and ASME B16.34 approved tested.
Testing Standards
  • API 598
  • API 6A PR2
  • ISO 5208
Design Specifications
Fire Safe Standards
Not Applicable
Relevant Approvals
Customer specifications can be adhered to.