--- product_id: 261832467 title: "Merrill MFG PRVNL50 1/2\" No-Lead Pressure Relief Valve, Brass" brand: "merrill" price: "131316Fr" currency: CDF in_stock: true category: "Merrill" url: https://congo.desertcart.com/products/261832467-merrill-mfg-prvnl50-1-2-no-lead-pressure-relief-valve store_origin: CD region: Congo --- # 1/2" NPT threaded connections 75 PSI max pressure Lead-free brass & stainless steel springs Merrill MFG PRVNL50 1/2" No-Lead Pressure Relief Valve, Brass **Brand:** merrill **Price:** 131316Fr **Availability:** ✅ In Stock ## Summary > 🛠️ Elevate your plumbing game with precision and peace of mind! ## Quick Answers - **What is this?** Merrill MFG PRVNL50 1/2" No-Lead Pressure Relief Valve, Brass by merrill - **How much does it cost?** 131316Fr with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [congo.desertcart.com](https://congo.desertcart.com/products/261832467-merrill-mfg-prvnl50-1-2-no-lead-pressure-relief-valve) ## Best For - merrill enthusiasts ## Why This Product - Trusted merrill brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Durable Brass Construction:** Robust lead-free brass body paired with stainless steel springs for long-lasting reliability. - • **Precision Pressure Control:** Engineered to safely relieve pressure up to 75 PSI, protecting your system from costly damage. - • **Cold Water System Optimized:** Specifically designed for cold water applications—perfect for modern, efficient plumbing solutions. - • **Universal 1/2" Threaded Fit:** Seamlessly integrates with standard plumbing setups via male NPT and female FPT connections. - • **Certified Safety & Compliance:** IAMPO and NSF/ANSI 372 certified, ensuring lead-free, eco-conscious performance. ## Overview The Merrill MFG PRVNL50 is a 1/2" no-lead pressure relief valve crafted from durable brass with stainless steel springs, designed to protect cold water systems by safely relieving pressure up to 75 PSI. Featuring standard 1/2" NPT threaded connections and certified by IAMPO and NSF/ANSI 372, it ensures compliance and reliability for professional-grade plumbing installations. ## Description Merrill MFG PRVNL50 1/2" No-Lead Pressure Relief Valve, Brass: desertcart.com: Industrial & Scientific ## Features - Pressure relief valves are for protection against excessive pressure - 1/2 in. male NPT x 1/2 in. female FPT - Lead free brass with stainless steel control springs - IAMPO Certified - 1/2" Line Connection, 75 PSI - Not for use with water heaters - Cold water systems only - CALIFORNIA PROP 65 WARNING: Product may expose you to chemicals known to the State of California to cause cancer and reproductive harm. See P65Warnings.ca.gov for details ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08GD12QV5 | | Best Sellers Rank | #38,618 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #18 in Relief Valves | | Brand Name | Merrill | | Connector Type | Threaded | | Customer Reviews | 4.6 4.6 out of 5 stars (206) | | Exterior Finish | Brass | | Inlet Connection Size | 0.5 inches | | Inlet Connection Type | National Pipe Tapered | | Manufacturer | Merrill Manufacturing Company | | Manufacturer Part Number | PRVNL50-A | | Material Type | Brass | | Maximum Pressure | 75 psi | | Model Number | PRVNL50-A | | Number of Items | 1 | | Number of Pieces | 1 | | Number of Ports | 1 | | Outlet Connection Size | 0.5 inches | | Outlet Connection Type | MNPT | | Size | 1/2 inch | | Specification Met | IAMPO, NSF/ANSI 372, AB 1953 | | Thread Size | 1/2 inches | | Thread Type | National Pipe Thread | | UPC | 642367450519 | | Unit Count | 1 Count | | Valve Type | Pressure Relief Valve | ## Product Details - **Brand:** Merrill - **Exterior Finish:** Brass - **Inlet Connection Size:** 0.5 inches - **Inlet Connection Type:** National Pipe Tapered - **Material:** Brass - **Maximum Operating Pressure:** 75 psi - **Number of Ports:** 1 - **Outlet Connection Size:** 0.5 inches - **Outlet Connection Type:** MNPT - **Specification Met:** IAMPO, NSF/ANSI 372, AB 1953 ## Images ![Merrill MFG PRVNL50 1/2" No-Lead Pressure Relief Valve, Brass - Image 1](https://m.media-amazon.com/images/I/314GOvz6pML.jpg) ![Merrill MFG PRVNL50 1/2" No-Lead Pressure Relief Valve, Brass - Image 2](https://m.media-amazon.com/images/I/21UoX+DGjvL.jpg) ![Merrill MFG PRVNL50 1/2" No-Lead Pressure Relief Valve, Brass - Image 3](https://m.media-amazon.com/images/I/31+LEpZwMJL.jpg) ![Merrill MFG PRVNL50 1/2" No-Lead Pressure Relief Valve, Brass - Image 4](https://m.media-amazon.com/images/I/41uKmkNKNuL.jpg) ![Merrill MFG PRVNL50 1/2" No-Lead Pressure Relief Valve, Brass - Image 5](https://m.media-amazon.com/images/I/410LJgDFBAL.jpg) ## Available Options This product comes in different **Size** options. ## Frequently Bought Together - Merrill MFG PRVNL50 1/2" No-Lead Pressure Relief Valve, Brass - MEASUREMAN 2-1/2" Dial Size, Glycerin Filled Pressure Gauge, 0-100psi/kpa, 304 Stainless Steel Case, 1/4" NPT Lower Mount - SENCTRL 100 Psi Lead-Free Glycerin Liquid Filled Low Pressure Gauge, 2.5" Dial Size, 1/4" NPT Lower Mount, Stainless Steel Case, for Home Potable Water Pump, Air, Well, RV Hose, Pressure Test --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://congo.desertcart.com/products/261832467-merrill-mfg-prvnl50-1-2-no-lead-pressure-relief-valve](https://congo.desertcart.com/products/261832467-merrill-mfg-prvnl50-1-2-no-lead-pressure-relief-valve) --- *Product available on Desertcart Congo* *Store origin: CD* *Last updated: 2026-09-13*