Gast · Relief / safety valve
AG258
Pressure/Vacuum Relief Valve 1.50” NPT Adjustable 30-200 in. H2O; 200 CFM maximum
Where to get it
No supplier lists this number with us yet. Ask for a quote and a specialist finds price and availability for you.
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As printed in the source
| AG258 | Pressure/Vacuum Relief Valve 1.50” NPT Adjustable 30-200 in. H2O; 200 CFM maximum (read by Claude, checked against the page)
Fits 25 models
As listed by GastWhen ordering, give the model and serial number from the nameplate: some parts changed within a model’s life.
Where it sits
In the R1102K-01
7 · Relief valve
- Pressure/Vacuum Relief Valve 1.50” NPT Adjustable 30-200 in. H2O; 200 CFM maximumAG258
- Pressure/Vacuum Relief Valve 2.50” NPT Adjustable 25-200 in. H2O; 560 CFM maximumAG258F
- Horizontal Swing Type Check Valve, R1, R2AH326B
- Horizontal Swing Type Check Valve, R4, R5, SDR4, R4PAH326D
- SPRINGAJ113DQ
- SPRINGAJ113DR
- SPRINGAJ113FQ
Our drawing of the machine type, with the R1102K-01's own parts; this part is highlighted. Side view along the shaft: the impeller runs in the open channel of the housing, closed by the cover.
Part number, name and fitment as published by Gast (source), retrieved 2026-10-20. Vac & Air is independent and not affiliated with the manufacturers shown; names and numbers identify the parts only.