1 in. Glue Inline Plastic Check Valve
1 in. Glue Inline Plastic Check Valve
✓ In stock at our distribution warehouses — typically ships within 1–2 business days.
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- $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
Glue inline PVC spring check valve, slip x slip solvent-weld ends. Jump to another size or add it straight to your cart:
| Size | Part # | Price | Cart |
| 1 in. (this page) | 940327 | $23.99 | — |
| 2 in. | 940330 | $34.99 | Add to cart |
Overview
The Midland Industries 940327 is a 1 in. glue inline PVC spring check valve with slip x slip (solvent-weld) ends. The spring-loaded design holds a positive seal 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) | 940327 |
| Nominal Size | 1 in. |
| End Connections | Slip x Slip (socket, solvent-weld) |
| 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 laterals, sump and transfer lines, and any 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: 0209CV50K, 42036-16, 523S05 . 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
- Valve Pressure and Temperature Ratings Chart
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 is a slip/socket connection?
Slip ends accept PVC pipe that is solvent-welded with primer and cement, forming a permanent bonded joint.
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.
What cracking pressure does it need?
The spring requires a small forward pressure to open and reseals on flow reversal; size the pump and line accordingly.
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.