{"product_id":"armstrong-516837-302-2-fsa-flo-trex-valve-straight-angle","title":"Armstrong 516837-302 2\" FSA Flo-Trex Valve Straight Angle","description":"\u003cp\u003eOptimizing discharge efficiency, the Armstrong Flo-Trex valve is designed to safeguard pumping equipment from reverse flow and pressure surges. This versatile component, identified as model \u003cb\u003e516837-302\u003c\/b\u003e, integrates multiple system requirements into a compact, durable assembly that simplifies piping installations.\u003c\/p\u003e\u003cp\u003eBy serving as a shut-off valve, non-slam check valve, and throttling device, this 2\" unit eliminates the need for individual components. Its configuration acts as a 90° elbow, effectively reducing fittings, minimizing pressure drop, and ensuring reliable pump performance across diverse hydronic applications.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eMulti-function integration:\u003c\/b\u003e Combines shut-off, check, and throttling capabilities in one device.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eNon-slam operation:\u003c\/b\u003e Reduces noise and vibration, preventing damaging hydraulic shock.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eFlow control:\u003c\/b\u003e Allows for precise system balancing via integral throttling features.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSimplified piping:\u003c\/b\u003e Replaces standard 90° elbows to minimize total system resistance.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for commercial hydronic heating and cooling systems, chilled water loops, and boiler feed discharge lines where reliable pump isolation and flow management are required.\u003c\/p\u003e","brand":"Armstrong","offers":[{"title":"Default Title","offer_id":43129883000926,"sku":"516837-302","price":967.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/516837_302_image_8f9d310d-c815-4356-ac0e-fa6514d7bb5a.png?v=1786086414","url":"https:\/\/nationalboilersupply.com\/products\/armstrong-516837-302-2-fsa-flo-trex-valve-straight-angle","provider":"National Boiler Supply","version":"1.0","type":"link"}