Solenoid Valve Replacements
Safe replacement strategies for discontinued gas and air solenoid valves.
Pressure & Flow Verification
When replacing valves (e.g., Honeywell VR to VAA), simply matching the pipe size (DN) is not enough. You must verify the Maximum Inlet Pressure and flow capacity (Kv/Cv) to ensure safe operation. Always perform a leak test after installation.
Replacement List
| Brand | Discontinued Model | End of Life | Official Replacement | Key Differences | Interchange? | Action / Advice |
|---|---|---|---|---|---|---|
| Honeywell | VR (Air Solenoid) | 2022-12-30 | VAA (Air Solenoid) | Official replacement. Check DN, connection (thread/flange), max pressure. | Conditional | Perform leak test and stroke time verification. |
| Siemens | VGD / VGG / VRH (Various) | Unknown | Contact Support | No unified public map. Depends on valve body + actuator combo. | No | Provide specific valve model for authorized lookup. |
Priority Procurement & Maintenance Advice
- Honeywell VR → VAA: Follow the official replacement guide but double-check the connection type (Threaded vs Flanged) and voltage.
- Siemens Valves: Since many Siemens valves are modular (Body + Actuator), identify the exact combination to find the correct replacement parts.
- Safety Check: Valve replacement is a "Gas Train" modification. It requires a formal leak test and verification of the valve proving system (if equipped).