B3 Series — Pressure Control Valves
Self-actuated upstream pressure control valves for precise, power-free regulation.
The B3 Series consists of self-actuated, self-operated upstream pressure control (back pressure) valves suitable for a wide range of fluid applications. These valves maintain a constant preset upstream pressure and open proportionally when the inlet pressure exceeds the preset value.
The unique glandless construction eliminates packing leakage, making the B3 Series ideal for zero-leakage applications. Improved sensitivity and repeatability ensure precise, reliable fluid pressure control.
Key Features
- Precise Process Control — Self-actuated sensing for accurate, repeatable upstream pressure regulation.
- Glandless Construction — Eliminates stem seal leakage paths for zero fugitive emissions.
- Easy Maintenance — Minimal moving parts — internals replaceable without pipeline removal.
- Tamper Resistant — Lockable pressure adjustment to prevent unauthorised modification.
- Wide Flow & Pressure Range — Handles broad operating envelopes from low-flow to full-bore capacities.
Technical Specifications
| Body Sizes | 1″ to 8″ — ANSI B16.5 Class 150 & 300 |
| Set Pressure Range | 0.4 to 28 kg/cm²g |
| Temperature Range | -25°C to 180°C |
| Certification | ISO 9001:2015, IBR Approved |
Applications
- Chemical equipment and piping
- Air/gas compressors and pumps
- Cryogenic systems
- Technical gases
- LPG/LNG terminals