Graco 103347 Safety Relief Valve
Graco 103347 Safety Relief Valve — pop-off safety valve set to ~100 psi (7 bar) with 1/4-18 NPT male thread. Protects Graco pressure tanks and air systems from over-pressure.
- Fits: Stainless Steel Pressure Tanks — 5 Gal (236087), 10 Gal (236088), 15 Gal (236089)
- Also used on select Graco Ram Package assemblies
- Verify spec: ~100 psi & 1/4-18 NPT before ordering
Overview & Key Details
Compatible Machines
- Graco Stainless Steel Pressure Tanks — 5 Gallon (236087), 10 Gallon (236088), 15 Gallon (236089) (uses this safety relief valve)
- Select Graco Ram Package assemblies (per factory parts lists that include this valve)
- Other Graco pressure-pot / air-pressure systems that specify a 1/4-18 NPT, ~100 psi (7 bar) safety relief valve
What It Is
The Graco 103347 Safety Relief Valve (also called a “pop-off” valve) protects pressurized systems by automatically venting air when pressure exceeds the set limit, helping prevent unsafe over-pressure conditions.
Key Specifications
| Part Number | 103347 |
|---|---|
| Type | Safety Relief Valve (air, “pop-off”) |
| Relief Setting | ~100 psi (≈ 7 bar, 0.7 MPa) |
| Thread / Port | 1/4-18 NPT (male) |
| Typical Use | Pressure tanks / pots, ram packages, and other Graco air-pressure systems requiring a 100 psi safety valve |
Why Choose This Valve
- Helps maintain safe operation by relieving excess pressure automatically
- Matches Graco assemblies that specify ~100 psi and 1/4-18 NPT
- Direct fit for multiple Graco Stainless Steel Pressure Tank models (5/10/15 gal)
Installation & Maintenance Notes
- Install in the designated port; confirm 1/4-18 NPT thread compatibility.
- Do not exceed the system’s rated working pressure—this valve is a safety backup, not a regulator.
- Function-check periodically (per your equipment manual). Replace if the valve fails to relieve at the specified range.
Frequently Asked Questions
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