{"product_id":"apollo-valve-10-400-series-bronze-safety-relief-valve-asme-50-psi","title":"Apollo Valve 10-400 Series Bronze Safety Relief Valve - ASME 50 psi","description":"\u003cp\u003eIn this review the Apollo Valve 10-400 series safety relief valve is assessed for hydronic heating and hot water boiler use; the bottom line is that it is a simple, reliable pressure relief solution for systems that require an ASME Section IV rating and a 50 psi set pressure. The reviewer found the bronze construction, silicone seat and stainless steel spring combine to deliver corrosion resistance and stable operation up to 250 degrees F, making it suitable for residential and light commercial water heating systems where consistent pressure protection is the priority.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePreset 50 psi relief:\u003c\/strong\u003e The 50 psi set pressure provides defined, reliable pressure relief for hot water heating systems to protect equipment and piping.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e3\/4 in NPT connections:\u003c\/strong\u003e The 3\/4 in male inlet and 3\/4 in female outlet thread pattern simplifies replacement on common plumbing and boiler fittings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBronze body and nozzle:\u003c\/strong\u003e ASTM B584 bronze construction resists corrosion in hot water environments and maintains dimensional stability over time.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSilicone seat:\u003c\/strong\u003e The silicone seat tolerates higher operating temperatures and helps ensure a tight reseal after discharge.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStainless steel spring:\u003c\/strong\u003e Stainless spring material resists corrosion and preserves consistent lift and reseating characteristics.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eASME safety rated:\u003c\/strong\u003e Certification for Section IV makes it appropriate for hot water heating boilers and hydronic systems requiring code-compliant relief protection.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis valve is aimed at plumbers, mechanical contractors and DIYers replacing or specifying a safety relief valve on residential or light commercial hot water boilers and hydronic heating systems that require an ASME Section IV rated device and a 50 psi set pressure. The straightforward 3\/4 in NPT threads and bronze construction make it a practical choice when corrosion resistance and code compliance are needed.\u003c\/p\u003e\u003cp\u003eCustomers who need adjustable set pressures, gas service compatibility, or ratings above 250 degrees F should look elsewhere, since this unit is a fixed 50 psi relief valve designed specifically for hot water applications up to 250 degrees F.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBronze body and nozzle provide good corrosion resistance for water heating systems.\u003c\/li\u003e\n\u003cli\u003eASME Section IV safety rating ensures code acceptance for many boiler and hydronic installs.\u003c\/li\u003e\n\u003cli\u003eSilicone seat and stainless spring support reliable reseating and long-term thermal resistance to 250 degrees F.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eFixed 50 psi set pressure limits use to systems that require that specific relief point rather than adjustable options.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSet pressure\u003c\/td\u003e\n\u003ctd\u003e50 psi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInlet connection\u003c\/td\u003e\n\u003ctd\u003e3\/4 in male NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutlet connection\u003c\/td\u003e\n\u003ctd\u003e3\/4 in female NPT\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBody and nozzle material\u003c\/td\u003e\n\u003ctd\u003eASTM B584 bronze\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpring material\u003c\/td\u003e\n\u003ctd\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat material\u003c\/td\u003e\n\u003ctd\u003eSilicone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum operating temperature\u003c\/td\u003e\n\u003ctd\u003e250 degrees F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Apollo Valve 10-400 series is a solid, no-frills safety relief valve for hot water boilers and hydronic systems that need a reliable, ASME-rated 50 psi protector. Its bronze construction, silicone seat and stainless spring make it durable for typical heating temperatures up to 250 degrees F, offering good value for anyone replacing a like-for-like relief valve or specifying a compliant safety device.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eIs this valve suitable for boilers?\u003c\/strong\u003e\u003cbr\u003eYes, it is ASME safety rated for Section IV hot water heating boilers and hydronic systems.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eCan the set pressure be adjusted?\u003c\/strong\u003e\u003cbr\u003eNo, this model has a preset relief pressure of 50 psi and is not designed for field adjustment.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWhat fluids and temperatures is it rated for?\u003c\/strong\u003e\u003cbr\u003eIt is intended for hot water applications and is rated for operating temperatures up to 250 degrees F.\u003c\/p\u003e","brand":"APOLLO","offers":[{"title":"Default Title","offer_id":48190820155611,"sku":"B008835SVW","price":34.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81gEAigO22L._SL1500.jpg?v=1769439484","url":"https:\/\/gearmusthave.com\/products\/apollo-valve-10-400-series-bronze-safety-relief-valve-asme-50-psi","provider":"GearMustHave","version":"1.0","type":"link"}