--- product_id: 261832467 title: "Merrill MFG PRVNL50 1/2\" No-Lead Pressure Relief Valve, Brass" brand: "merrill" price: "€ 39.30" currency: EUR in_stock: true category: "Merrill" url: https://www.desertcart.be/products/261832467-merrill-mfg-prvnl50-1-2-no-lead-pressure-relief-valve store_origin: BE region: Belgium --- # Lead-free brass, eco-compliant 1/2" NPT threaded precision fit 75 PSI max pressure safety Merrill MFG PRVNL50 1/2" No-Lead Pressure Relief Valve, Brass **Brand:** merrill **Price:** € 39.30 **Availability:** ✅ In Stock ## Summary > 🛠️ Elevate your plumbing game with precision and safety that professionals trust! ## Quick Answers - **What is this?** Merrill MFG PRVNL50 1/2" No-Lead Pressure Relief Valve, Brass by merrill - **How much does it cost?** € 39.30 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/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 - • **Trusted Industry Choice:** Ranked #11 in Relief Valves with 4.6-star rating from 200+ professionals - • **Optimal Pressure Protection:** Relieves excessive pressure up to 75 PSI, safeguarding your cold water systems - • **Certified Safety & Compliance:** IAMPO certified with NSF/ANSI 372 and AB 1953 standards for peace of mind - • **Precision Threaded Connections:** Secure 1/2" male NPT x 1/2" female FPT for leak-proof integration - • **Durable Lead-Free Brass Construction:** Robust brass body with stainless steel springs ensures longevity and eco-friendliness ## Overview The Merrill MFG PRVNL50 is a 1/2" no-lead brass pressure relief valve designed for cold water systems, featuring threaded 1/2" NPT connections, a maximum pressure rating of 75 PSI, and certified compliance with IAMPO and NSF/ANSI 372 standards. Its durable lead-free brass construction and stainless steel springs ensure reliable, long-lasting pressure protection, making it a top-rated choice among industry professionals. ## 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 | #32,367 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Relief Valves | | Brand Name | Merrill | | Connector Type | Threaded | | Customer Reviews | 4.6 4.6 out of 5 stars (204) | | 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://www.desertcart.be/products/261832467-merrill-mfg-prvnl50-1-2-no-lead-pressure-relief-valve](https://www.desertcart.be/products/261832467-merrill-mfg-prvnl50-1-2-no-lead-pressure-relief-valve) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-08-22*