Campbell 4030E 3/4" FNPT Brass Spring Check Valve
A 3/4" FNPT brass spring check valve with .5 psi cracking pressure, 13 gpm flow and 400 psi water rating
- Lead-free brass meets potable-water standards
- 5 psi cracking pressure opens with minimal flow
- 13 gpm capacity handles high-demand fixtures
- 400 psi rating suits high-pressure systems
- Spring-loaded design works horizontally or vertically
Campbell 4030E Brass Check Valve
The Campbell 4030E is a 3/4 inch FNPT lead-free brass spring check valve built for potable water lines. It suits residential and light commercial plumbing where backflow prevention is required.
Thermals noise and power
The valve operates passively with no electrical draw and no moving parts that generate noise. It handles water temperatures from 35 to 180 degrees Fahrenheit and withstands pressures up to 400 psi in the horizontal or vertical orientation.
Upgrade path and fit
This valve replaces a worn swing check or a missing backflow device on a 3/4 inch threaded line where a low cracking pressure of .5 psi and a flow capacity of 13 gpm are needed. It is not for steam service or for systems that exceed the rated temperature and pressure limits.
How it compares
Measured against everything we stock in Faucet Valves & Replacement Parts, at today’s prices. Recalculated every night.
- Price $32.99
- Cheaper than about 69% of the 1,132 comparable items (median $54.99).
Specifications
| Product | |
|---|---|
| Brand name | CAMPBELL |
| Product type | Other |
Questions about this item
How do I install the 4030E spring check valve and which orientation step is often missed?
Thread the 3/4" FNPT ends into the pipework using thread sealant, then ensure the valve body is mounted either horizontally or vertically with the flow arrow pointing downstream — the orientation must match the piping layout.
What maintenance or replacement will the 4030E need over time?
Inspect the nitrile seal and stainless-steel spring annually; replace the valve if the seat shows wear or if the cracking pressure drifts from the factory .5 psi setting.
Which limit appears first during sustained high-temperature water use?
The 180 °F maximum temperature rating is reached before the 400 psi pressure limit under continuous hot-water flow.
More in Faucet Valves & Replacement Parts
Similar items
Milwaukee Valve
Milwaukee Valve UPBA485B 1 in manual 2-way brass ball valve sweat connection
$32.99
0.00040224BTC
In stock
