2 in. Female NPT Inline Plastic Check Valve
2 in. Female NPT Inline Plastic Check Valve
Backordered at the manufacturer — estimated ship time 2–3 weeks. Need a firm date? Email sales@apexflowsolutions.com
Flat-rate shipping, nationwide- Orders under $100: $9.95
- $100 – $499.99: $14.95
- Orders $500+: quoted — real freight for your order, not a flat guess
Volume order or crossing a competitor part number? Request a quote — usually answered the same business day.
Sizes in This Series
PVC spring-loaded inline check valve, FIP x FIP threaded. Jump to another size or add it straight to your cart:
| Size | Part # | Price | Cart |
| 1 in. | 940333 | $20.99 | Add to cart |
| 2 in. (this page) | 940336 | $49.99 | — |
Overview
The Midland Industries 940336 is a 2 in. PVC spring-loaded inline check valve with FIP x FIP threaded end connections. The spring-loaded design seals positively and prevents backflow in any orientation. It is rated to 200 psi at 77°F, with a corrosion-resistant PVC body for irrigation, pump, and water-transfer service.
Technical Specifications
| Manufacturer | Midland Industries |
| Part Number (MPN) | 940336 |
| Nominal Size | 2 in. |
| End Connections | FIP x FIP (female NPT) |
| Port / Valve Type | Inline spring check valve |
| Pressure Rating | 200 psi |
| Temperature Range | Up to 77°F (cold-water service) |
| Lead Content | PVC body — no lead-bearing alloy |
Materials of Construction
| Body | PVC |
| Internal Spring | Spring-loaded check mechanism |
| Seals | Elastomer seat |
Typical Applications
Prevents reverse flow on pump discharge, irrigation mains, sump and transfer lines, and any threaded cold-water system where backflow must be stopped. The spring assist allows installation in horizontal or vertical runs.
Cross-Reference and Interchange
This valve cross-references to these competitor and industry part numbers: 0209CV40N, 42034-32, 523T08, C31-200 . Replacing one of these? Match nominal size, end connections, and the rating for a direct fit, or send us your part number and we will confirm the interchange.
Sizing and Installation Resources
- Check Valve Types Explained
- PVC Valve Chemical Compatibility Chart
- How to Choose the Right Valve
- NPT Thread Tightening Guide
Frequently Asked Questions
Can it be installed vertically?
Yes. The spring-loaded design lets it seal in horizontal or vertical runs; install with the flow arrow pointing in the direction of flow.
What does FIP x FIP mean?
Both ends are female NPT threads, so it installs onto male-threaded pipe or fittings using thread sealant.
Is it rated for hot water?
No. The 200 psi rating applies at 77°F; PVC is a cold-water material and pressure capacity falls as temperature rises.
Do I need to support a valve this size?
Yes. Support the adjoining pipe so the valve weight is not carried by the threaded joints alone.
California Proposition 65 Warning: This product can expose you to chemicals, including Chloroethane, known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.