OBSOLETE: Honeywell ceased production in 2020. No longer available.
- We purchased all remaining stock from Honeywell, AstralPool, and Raypak and sold out in 2022.
- There is no legal replacement gas valve for these in Australia. In most cases, a new heater is required.
- Overseas versions of the SmartValve are not compatible and are not legal for Australian appliances.
- Heater will likely need to be replaced as most heaters with this valve were discontinued between 2014-2016.
Archived information (for reference only)
Honeywell SmartValve gas valve regulator used on many Hurlcon, AstralPool, Raypak, and other gas heaters (and some other gas appliances).
- Hurlcon / AstralPool part number: 73733
- Raypak part number: 56609198
- Honeywell model: SV9605H 1004 (SV9605H1004)
Related parts often replaced at the same time
Known part numbers / cross references
- 9605H1004
- SV9605H1004B
- TPGHWSV9605H
- HWSV9605H
- HWQ3450C116913
- 2501322
- 24V (variant reference)
Suits (examples only)
- Hurlcon / AstralPool: Part Number 73733
- Raypak: Part Number 56609198 (H.S.I. SV9605H 1004 “Smart Valve”)
- Hurlcon / AstralPool models: MX 125, MX 150, MX 200, MX 250, MX 300, MX 350, MX 400
- Raypak models: Raypak 280, Raypak 350, Raypak 430, some RP2100 models (pre-2019)
- Hurlcon HM & HB boilers: HB 200, HB 250, HB 300, HB 400, HB 500, HM 200, HM 250, HM 300, HM 400
- Also used across various hot water heaters, central heaters, and other gas systems that used the Honeywell 9605H-1004 SmartValve®.
Important (LPG and gas pressure)
- For LPG: use the existing spring from the old valve, or purchase a new LPG kit for these valves (located under the gas pressure adjustment).
- When replacing gas valves, gas pressure must be adjusted to the heater’s compliance label.
Notes (what the SmartValve does)
The SmartValve® controls gas and flame, and also performs hot surface ignition (HSI) and flame rectification via the flame sensor on the pilot assembly. It is not a simple open/close solenoid valve.
SmartValve® System Controls combine gas flow control and electronic intermittent pilot sequencing functions into a single unit. They can also monitor airflow proving switches and limit circuits, and provide pre-purge, post-purge, and timed trial-for-ignition functions, with shutoff and retry logic.


