--- product_id: 456281135 title: "Watts 0372271 530C 3/4\" Poppet Style Adjustable Relief Valve" brand: "watts" price: "S$194" currency: SGD in_stock: true category: "Watts" url: https://www.desertcart.sg/products/456281135-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve store_origin: SG region: Singapore --- # Durable Brass & Stainless Steel Build 3/4" NPT Threaded Connections Adjustable Pressure Relief up to 300 PSI Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve **Brand:** watts **Price:** S$194 **Availability:** ✅ In Stock ## Summary > 🛠️ Master your system’s pressure with Watts — safety and precision in every turn! ## Quick Answers - **What is this?** Watts 0372271 530C 3/4" Poppet Style Adjustable Relief Valve by watts - **How much does it cost?** S$194 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/456281135-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 - • **Easy Integration:** Standard 3/4" NPT threaded inlet and outlet connections for seamless installation. - • **Robust Construction:** Premium brass body with stainless steel spring ensures long-lasting, corrosion-resistant performance. - • **Trusted Reliability:** Backed by Watts’ engineering excellence and a 4.1-star rating from industry professionals. - • **Versatile Application:** Ideal for commercial, residential, and industrial water, oil, or air systems—protect what matters most. - • **Precision Pressure Control:** Calibrated adjustment lets you set 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. Featuring a durable brass body, stainless steel spring, and calibrated pressure adjustment up to 300 PSI, it offers reliable, corrosion-resistant performance for commercial, residential, and industrial applications. Its threaded NPT connections ensure easy installation, making it a trusted choice for pressure relief needs. ## 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. ## Features - Poppet Style Adjustable Relief Valve - Watts 3/4" 530C Releif Valve - Boiler relief valve - Brass construction - Threaded ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00EZH8AQA | | ASIN | B00EZH8AQA | | Batteries | 1 AAA batteries required. | | Best Sellers Rank | #235,032 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2,444 in Industrial Pipe Fittings | | Brand Name | WATTS | | Connector Type | Threaded | | Customer Reviews | 4.1 4.1 out of 5 stars (43) | | Customer reviews | 4.1 4.1 out of 5 stars (43) | | Date First Available | 16 July 2022 | | Exterior Finish | Brass,Stainless Steel | | Global Trade Identification Number | 00098268018240 | | Inlet Connection Size | 0.75 Inches | | Inlet Connection Type | National Pipe Tapered | | Is Discontinued By Manufacturer | No | | Item Dimensions | 9.7 x 5.8 x 3.8 centimeters | | Item Weight | 0.01 Ounces | | Item model number | 372271 | | Manufacturer | Watts | | Manufacturer | Watts | | Manufacturer Part Number | 372271 | | Material Type | Brass | | Maximum Pressure | 300 Pound per Square Inch | | Model Number | 372271 | | Number of Items | 1 | | Number of Packs | 1 | | Number of Pieces | 1 | | Number of Ports | 2 | | Outlet Connection Size | 0.75 Inches | | Outlet Connection Type | FNPT | | Product Dimensions | 9.65 x 5.84 x 3.81 cm; 0.28 g | | Size | 3/4 inch | | Specification Met | asme approved | | Thread Size | 3/4" NPT | | UPC | 098268018240 | | Unit Count | 1 Count | | Valve Type | relief valve,valve | ## Product Details - **Brand:** WATTS - **Exterior finish:** Brass,Stainless Steel - **Inlet connection size:** 0.75 Inches - **Item dimensions L x W x H:** 9.7 x 5.8 x 3.8 centimeters - **Material:** Brass ## 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 ## 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.sg/products/456281135-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve](https://www.desertcart.sg/products/456281135-watts-0372271-530c-3-4-poppet-style-adjustable-relief-valve) --- *Product available on Desertcart Singapore* *Store origin: SG* *Last updated: 2026-09-29*