--- product_id: 70269122 title: "Watts 0372271 530C 3/4\" Poppet Style Adjustable Relief Valve" brand: "watts" price: "734.81 DT" currency: TND in_stock: true reviews_count: 8 category: "Watts" url: https://www.desertcart.tn/products/70269122-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve store_origin: TN region: Tunisia --- # 3/4" NPT threaded connections 300 PSI max pressure Adjustable calibrated relief setting Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve **Brand:** watts **Price:** 734.81 DT **Availability:** ✅ In Stock ## Summary > 🛠️ Master your system’s pressure with precision and confidence! ## Quick Answers - **What is this?** Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve by watts - **How much does it cost?** 734.81 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/70269122-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve) ## Best For - watts enthusiasts ## Why This Product - Trusted watts brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Trusted Brand Quality:** Watts, a leader in plumbing solutions, delivering dependable performance with every valve. - • **Versatile Application:** Ideal for commercial, residential, and industrial water, oil, or air systems—protect what matters most. - • **Threaded NPT Connections:** Standard 3/4" NPT male inlet and female outlet for seamless integration with existing plumbing. - • **Robust Brass Construction:** Durable bronze body and brass bonnet ensure long-lasting corrosion resistance and reliability. - • **Precision Pressure Control:** Calibrated adjustment lets you dial in exact relief pressure for ultimate system safety. ## Overview The Watts 0372271 530C is a 3/4" poppet style adjustable relief valve designed to protect water, oil, and air systems from excessive pressure up to 300 PSI. Featuring a durable brass and bronze construction with threaded NPT connections, it offers precise pressure calibration for commercial, residential, and industrial applications. Trusted for its reliability and ease of integration, this valve ensures your system stays safe and efficient. ## Description Series 530C Calibrated Pressure Relief Valves are used in commercial, residential and industrial applications to protect against excessive pressure in systems containing water, oil, or air. It consists of a bronze body construction with NPT threaded male inlet and NPT threaded female (drain) outlet connections, stainless steel spring, brass bonnet, Buna-N disc, and Buna-N O-ring. Series 530C has a calibrated adjustment feature for setting the valve to the required relief pressure, and is ideal for by-pass thermal expansion pressure relief (not ASME approved). Model 530FP is for use in fire protection systems. Review: Seems to work well. - I am using a jaccuzi pump for irrigation, and needed a blow off type of pressure regulator. I ran from the output back to the input, and set the pressure to 75 PSI. seems to be working. Mark. Review: Valve - Good quality product . ## Features - Poppet Style Adjustable Relief Valve - Watts 3/4" 530C Releif Valve - Boiler relief valve - Brass construction - Threaded ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00EZH8AQA | | Best Sellers Rank | #285,376 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #355 in Relief Valves | | Brand | Watts | | Brand Name | Watts | | Connector Type | Threaded | | Customer Reviews | 4.2 out of 5 stars 44 Reviews | | Exterior Finish | oil | | Global Trade Identification Number | 00098268018240 | | Inlet Connection Type | National Pipe Tapered | | Item Dimensions | 3.8 x 2.3 x 1.5 inches | | Item Weight | 0.01 Ounces | | Item dimensions L x W x H | 3.8 x 2.3 x 1.5 inches | | Manufacturer | Watts | | Manufacturer Part Number | 372271 | | Material | Brass | | Material Type | Brass | | Maximum Operating Pressure | 300 Pound per Square Inch | | Maximum Pressure | 300 Pound per Square Inch | | Model Number | 372271 | | Number of Ports | 2 | | Size | 3/4 inch | | Specification Met | ASME | | Thread Size | 3/4" NPT | | Thread Type | NPT | | UPC | 098268018240 | | Unit Count | 1.0 Count | | Valve Type | relief valve,valve | ## Product Details - **Brand:** Watts - **Exterior Finish:** oil - **Global Trade Identification Number:** 00098268018240 - **Inlet Connection Type:** National Pipe Tapered - **Item dimensions L x W x H:** 3.8 x 2.3 x 1.5 inches - **Manufacturer:** Watts - **Material:** Brass - **Maximum Operating Pressure:** 300 Pound per Square Inch - **Number of Ports:** 2 - **Specification Met:** ASME ## Images ![Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve - Image 1](https://m.media-amazon.com/images/I/61OqHSjeeLL.jpg) ## Questions & Answers **Q: does this have 3/4 out outlet? seems some don't.** A: 1/2 inch FIP outlet **Q: what is the ranges for this valve up to 300 p.s.i.?** A: Type : Calibrated Pressure Nominal Size : 3/4 Inch Connection Type : FNPT Operating Pressure : 300 psi Setting Pressure : 50 To 175 psi Number Of Ports/Ways : 2 Body Material : Brass Disc Material : Buna-N (Nitrile) Bonnet : Brass Industry Standards : ISO Certified Temperature Rating : 180 deg F ## Customer Reviews ### ⭐⭐⭐⭐⭐ Seems to work well. *by C***N on July 29, 2024* I am using a jaccuzi pump for irrigation, and needed a blow off type of pressure regulator. I ran from the output back to the input, and set the pressure to 75 PSI. seems to be working. Mark. ### ⭐⭐⭐⭐⭐ Valve *by K***S on May 21, 2025* Good quality product . ### ⭐⭐⭐ Nicely made but... *by S***E on September 18, 2025* Nicely made but contains lead alloyed in the brass so risky? ## Frequently Bought Together - Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve - 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.tn/products/70269122-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve](https://www.desertcart.tn/products/70269122-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-07-31*