SEVERE SERVICE UNION BONNET SERIES (UB SERIES):

  • Rigid Union Bonnet Construction for Accidental Disassembly

  • Straight and Angled Flow Pattern

  • Roll threaded Spindle threads for anti-galling and extended service life

  • Unique Spindle Back Seat prevents Stem Blow Out

  • Stem Ball and V-Tip as Standard

  • Metal to Metal Seat

End Connections

  • Powerlok Tube End, NPT, BSPT, BSPP, ISO, DIN and JIS pipe threads

Size range

  • 1/8” to 1” and 3mm to 25mm
  • Tube End and Male/Female Threaded Pipe End Connections

Operating Pressures

  • Up to 6000 psig

Operating Temperature

  • Up to 200°C with PTFE Stem Seals
  • Optional Graphite Stem Seals for up to 640°C

Materials of Construction

  • Stainless Steel as Standard
  • Special Alloy Construction on request

NACE Compliance

  • Sour Gas Service Compliant as per NACE MR-01-75 (on request)

Actuation Options

  • Pneumatic Actuation on Request

Special Applications

  • CNG and H2 compatible vetted parts as added option.

Mounting Options

  • Panel Mounting as Standard

Relevant Design Standards

  • Threads – ANSI B1.20.1
  • Pressure Test – BS EN 12266-1
  • OIL & Gas

  • Chemical & Petrochemical

  • Power Generation

Note: – As a drive for continuous improvements of our products, Powerlok reserves the right to change the descriptions contained in this brochure without prior notice. Consult local Agent or Factory for revisions and/or service related issues.