In-Line Check Valve | 234AB Series | Press × Press
In-Line Check Valve | 234AB Series | Press × Press
Red-White Valve’s 234AB Lead-Free Brass In-Line Check Valve delivers reliable backflow prevention and quick, tool-free installation. Featuring EzPress × EzPress connections, this ECO-VALVE model provides long-term corrosion resistance and superior system safety for residential and commercial potable water systems.
Built from ASTM B927 C27453 DZR (Dezincification Resistant) lead-free brass, the 234AB is certified to AB1953 and NSF/ANSI/CAN 61 & 372. It operates at up to 400 PSI (15 °F–200 °F) for the valve body and 250 PSI (15 °F–160 °F) for the press connection, with a spring cracking pressure of 0.5 PSI. Designed for horizontal or vertical installation, it ensures efficient performance and easy maintenance across a wide range of plumbing applications.
Key Features
- 400 PSI Brass Body Rating — Handles up to 400 PSI (15 °F–200 °F) for dependable backflow protection.
- Press × Press Connections — 250 PSI from 15 °F–160 °F, rated up to 150 PSI at 250 °F.
- DZR Lead-Free Brass Construction — Made from ASTM B927 C27453 for superior corrosion resistance.
- Spring-Loaded Design — Features a 0.5 PSI cracking pressure for fast, reliable sealing in both horizontal and vertical setups.
- Certified Safe — AB1953 and NSF/ANSI/CAN 61 & 372 compliant for potable water applications.
- Eco-Valve Certified — Environmentally responsible construction meeting lead-free standards under the Drinking Water Act.
Pressure / Temperature Rating
| Component | Pressure / Temperature Range |
|---|---|
| Valve Body & Stem | 400 PSI from 15 °F to 200 °F |
| Press Connections | 250 PSI from 15 °F to 160 °F | 150 PSI max. at 250 °F |
Dimension, Weight
| Size | A [in] | W [in] | D [in] | C [in] | Wt. [lb] |
|---|---|---|---|---|---|
| ½″ | 3.14 | 1.13 | 0.64 | 0.93 | 0.27 |
| ¾″ | 3.45 | 1.43 | 0.89 | 0.98 | 0.43 |
| 1″ | 3.80 | 1.76 | 1.14 | 1.06 | 0.64 |
| 1¼″ | 4.10 | 2.22 | 1.39 | 1.06 | 0.99 |
| 1½″ | 4.65 | 2.56 | 1.64 | 1.26 | 1.47 |
| 2″ | 5.48 | 3.22 | 2.14 | 1.52 | 2.22 |
Material Construction
| # | Part | Material | Specification |
|---|---|---|---|
| 1 | Body | DZR Lead-Free Brass | ASTM B927 C27453 |
| 2 | End Piece | DZR Lead-Free Brass | ASTM B927 C27453 |
| 3 | Stem | Lead-Free Brass | ASTM B927 C27450 |
| 4 | Shutter Disk | Lead-Free Brass | ASTM B927 C27450 |
| 5 | Seat | NSF EPDM Peroxide | ASTM D2000 |
| 6 | Retaining Disk | Lead-Free Brass | ASTM B927 C27450 |
| 7 | Spring | Stainless Steel | ASTM A313 S30200 |
| 8 | O-Ring | EPDM | – |
Warning (California Prop 65): This product can expose you to chemicals including lead, known to the State of California to cause cancer, birth defects, or reproductive harm. For more information, visit www.P65Warnings.ca.gov.