{"product_id":"miller-smith-h743-flashback-arrestors-torch-mounted-pair","title":"Miller Smith H743 Flashback Arrestors-Torch Mounted-Pair","description":"\u003cp\u003eA combination flashback arrestor and check valve sits in the gas line to stop the reverse flow of gas and to extinguish a flashback fire before it travels back down the hose. The Miller Smith H743 is a torch-mounted pair, installed \u003cstrong\u003ebetween the torch body and the hose\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003eThese units are built for larger torches carrying type B (9\/16\") connections on the torch body itself, including casting and melting torches. The built-in check valve requires a minimum of 2 psi to open and allow gas to flow through. Two units ship per set.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCombination flashback arrestor and check valve in a single unit, two per set\u003c\/li\u003e\n\u003cli\u003eMounts between the torch body and the hose on type B (9\/16\" connection) torches\u003c\/li\u003e\n\u003cli\u003eCheck valve stops reverse flow of gas; flashback arrestor extinguishes flashback fires\u003c\/li\u003e\n\u003cli\u003eBuilt-in check valve requires a minimum of 2 psi to open and allow gas to flow through\u003c\/li\u003e\n\u003cli\u003eHelps protect against mixed gas explosions and flashback fires that can damage equipment or cause severe personal injury or death\u003c\/li\u003e\n\u003cli\u003eCompatible with casting and melting torches with type B (9\/16\") connections\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTorches with type B (9\/16\") connections on the torch body, including casting and melting torches\u003c\/li\u003e\n\u003cli\u003eThese arrestors will \u003cem\u003enot\u003c\/em\u003e fit the Little Torch, Meco Midget Torch, Swiss Torch, or Swiss Torch II. Use the regulator-mounted combination flashback arrestor and check valve, 114.389, on those torches\u003c\/li\u003e\n\u003cli\u003eThere are no torch-mounted flashback arrestors compatible with those smaller torch models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNotes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eA \u003cstrong\u003echeck valve\u003c\/strong\u003e stops the reverse flow of gas. A \u003cstrong\u003eflashback arrestor\u003c\/strong\u003e extinguishes a flashback fire. These units do both.\u003c\/li\u003e\n\u003cli\u003eA flashback is an ignition of mixed gases within an oxy-fuel cutting or welding system and poses serious safety risks.\u003c\/li\u003e\n\u003cli\u003eUnit 114.389 (regulator-mounted) looks identical to these torch-mounted versions but has its flow restrictions oriented in the opposite direction, so the two types are not interchangeable.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Otto Frei","offers":[{"title":"Default Title","offer_id":43581543186646,"sku":"114.391","price":122.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0609\/9832\/0342\/files\/miller-smith-h743-flashback-arrestors-torch-mounted-pair-otto-frei.jpg?v=1719957541","url":"https:\/\/www.ottofrei.com\/ja\/products\/miller-smith-h743-flashback-arrestors-torch-mounted-pair","provider":"Otto Frei","version":"1.0","type":"link"}