# Fire Hydrant Relief Valve, 500 GPM

Fire Hydrant Relief Valve, Inlet Size 2 1/2 in, Capacity 500 gpm @ 45 fps, Inlet Pressure 0 to 300 psi, Pilot Adjustment Range 20 to 175 psi, Body Material Cast Iron, Connection Type FNST Swivel, Seal Material Buna N Quad Seal, Stem Material Stainless Steel AISA303, Diaphragm Material Nylon Reinforced Buna N, Seat Material Brass, Control Circuit Fixed Orifice, Application Installed on fire hydrants to provide temporary relief protection to a water system

graingerSKU: 6AKX9, mscSKU: , zoro\_no: G1303513, mongo\_id: 65bbe92822d7a989a993b56a

## Details

- **Price:** 2752.49 USD
- **Vendor:** Watts
- **Type:** Relief Valves
- **Tags:** DESCRIPTION_UPDATE

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2752.49 USD | In stock |

## Images

- Z3y9J0fo5oy.JPG
- Z3y9J0fo5oz.JPG

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> Source: [The Tools Man](https://www.thetoolsman.com/products/watts-fire-hydrant-relief-valve-500-gpm-1116fh)
> Updated: 2026-07-13