S Series Ball Valve

The bolt together or ‘S’ Series offers flexibility and interchangeability. Upon installation it is easily maintained by removal of the centre section for renewal of the seats and seals prolonging the valves life. With its ‘Bolt together’ design it is readily converted to actuator control.

Fire Safe Design
UNI Directional Flow
Servicing Kits
Severe Temp Rating
NACE Approved
Specifications & Ratings
Flexible, safe and robust interchangeable valves with optional actuation. Manufactured with the choice of threaded, socket or butt weld ends for installing the valve into the pipeline and also includes as anti blowout system. Materials of construction can be supplied to meet requirements of NACE MR-01-75.
Valve Types
Single Isolate
Pressure Rating
1000 - 3000 psi
Temperature Rating
-20°C up to 110°C (larger temperature ranges available)
Bore Size
10mm - 50mm
Connection Size
1/4" - 2 1/2"
  • NPT
  • BSPP
  • BSPT
  • Compression Ended (Single & Twin Ferrule)
  • Socket Weld
  • Butt Weld
  • Threaded
  • NPT
  • BSPP
  • BSPT
  • Compression Ended (Single & Twin Ferrule)
  • Socket Weld
  • Butt Weld
Lever with T bar option and lockable
Material Options
Materials of manufacture are 316 SS as standard with other material options available.
Material Construction
  • Stainless Steel 316
  • Monel
  • Duplex
  • Super Duplex
  • 6Mo
  • Titanium
  • Hastalloy
  • Zirconium
  • Inconel
  • Incoloy
  • Carbon Steel
  • Ali Bronze
  • Brass
  • Other Materials can be made available upon request
Trim Material
  • Options available upon request.
Bolting Materials
Material Traceability
Testing & Design Standards
All Alco Valves Group products are designed to comply with or exceed internationally recognised products. API 598 approved tested.
Testing Standards
API 598
Design Specifications
MSS SP 99 and others.
Fire Safe Standards
Optional - ISO 10497
Relevant Approvals
Customer specifications can be adhered to.