

Graco|563161
GRACO VALVE, RELIEF, 1/4 NPT, 3000 PSI 563161
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Email sales@goind.com.au or call 07 3204 2240 for live availability.
Ships from Brisbane warehouse. Standard delivery 2-5 business days Australia-wide.

SIMPLE MECHANICAL PROTECTION FOR GRACO PUMPS AND DISPENSING SYSTEMS
Graco 1/4 NPT pressure relief valve rated to 3000 PSI. Protects pumps and dispensing systems from over-pressure damage in diesel, oil, and grease applications.
What it does
When your pump deadheads against a closed valve or a blocked filter chokes flow, pressure climbs fast. Without a relief path, seals blow, hoses burst, and you lose half a day fixing damage that costs ten times what this valve costs. This Graco unit cracks open at a preset threshold, dumps the excess back to tank or atmosphere, and closes again when pressure normalises. No electronics, no settings to drift. Just a spring-loaded poppet that does one job reliably.
Where it fits
Standard 1/4 NPT thread suits most Graco pump assemblies and aftermarket pressure manifolds. Mount it close to the pump outlet or at a high point in the dispensing line where trapped pressure might spike. Common in diesel bowsers, oil dispensers, AdBlue rigs, and grease systems where intermittent flow creates pressure surges. If you are running Graco gear, this is the OEM part the system was designed around.
Features & Benefits
Key Features
- Pressure rating - 3000 PSI
- Connection - 1/4 NPT thread
- Mechanical relief operation, no power required
- Suits diesel, oil, AdBlue, grease systems
- Compact 0.03 kg inline body
- Graco OEM replacement part
Benefits
- Prevents burst hoses and blown seals
- No wiring or controllers to maintain
- Drop-in fit for Graco pump assemblies
- Keeps dispensing gear running between services
| Max Working Pressure | 3000 |
| Weight | 0.03 |
| Connection Size (in) | 0.25 |
| Overall Length (cm) | 3 |
| Length | 35 |
Shipping & Dimensions
Ships from Brisbane warehouse. Standard delivery 2-5 business days.
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Compatible Products
Frequently Asked Questions
Can't find your answer?
Contact UsWhat is the Graco relief valve?
A mechanical pressure relief valve that opens at a preset threshold to protect pumps, hoses, and fittings from over-pressure damage in diesel, oil, AdBlue, and grease systems.
What pressure does it relieve at?
The valve is rated to 3000 PSI maximum. The exact cracking pressure is preset by Graco and should match your pump specification. Confirm cracking pressure with your system datasheet or contact us for confirmation.
Does it need electrical power?
No. This is a purely mechanical valve. It opens when system pressure exceeds the preset threshold and closes again when pressure drops.
Can I adjust the relief pressure?
No. Graco relief valves are factory-set and not field-adjustable. If you need a different cracking pressure, you need a different part number.
What is the warranty and how do I get support?
12-month manufacturer warranty on defects. Valve internals wear over time and are not warranty items. For fitment advice or bulk orders, contact sales@goind.com.au or 07 3204 2240.











