{"product_id":"frog-eye-sight-glass-npt-thread-high-temperature-resistant-screw-oil-sight-glass","title":"Frog eye sight glass NPT thread high temperature resistant screw oil sight glass","description":"\u003ch2\u003eFrog Eye Sight Glass — NPT Thread Screw-In Oil Sight Glass\u003c\/h2\u003e\u003cp\u003eThe frog eye sight glass (also known as a bull's eye sight glass) is a compact, screw-in oil level indicator designed for direct installation into gearbox housings, compressor bodies, pump casings, and other industrial machinery. Its distinctive circular borosilicate glass window provides a clear, wide-angle view of oil levels and condition without requiring any additional fittings.\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBorosilicate glass window — high thermal shock resistance, rated for high-temperature service\u003c\/li\u003e\n\u003cli\u003eNPT threaded body for direct screw-in installation — no additional fittings required\u003c\/li\u003e\n\u003cli\u003eCompact, low-profile design — minimal installation space required\u003c\/li\u003e\n\u003cli\u003eCorrosion-resistant aluminium alloy or stainless steel body\u003c\/li\u003e\n\u003cli\u003eOil-resistant sealing gasket included\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple thread sizes: 1\/4\", 3\/8\", 1\/2\", 3\/4\", 1\" NPT\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eGlass material: Borosilicate (high-temp resistant)\u003c\/li\u003e\n\u003cli\u003eBody material: Aluminium alloy \/ Stainless steel 304\u003c\/li\u003e\n\u003cli\u003eThread standard: NPT (BSP available on request)\u003c\/li\u003e\n\u003cli\u003eMax working temperature: 120°C (standard) \/ 180°C (high-temp version)\u003c\/li\u003e\n\u003cli\u003eMax working pressure: 0.3 MPa\u003c\/li\u003e\n\u003cli\u003eSuitable fluids: Mineral oil, synthetic lubricants, hydraulic fluid\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTypical Applications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eIndustrial gearboxes and speed reducers\u003c\/li\u003e\n\u003cli\u003eScrew and reciprocating air compressors\u003c\/li\u003e\n\u003cli\u003eHydraulic power units\u003c\/li\u003e\n\u003cli\u003ePumps and electric motor bearing housings\u003c\/li\u003e\n\u003cli\u003eMachine tool lubrication reservoirs\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eAvailable in standard NPT sizes. BSP thread and stainless steel body options available on request. Contact us with your thread size and operating conditions.\u003c\/p\u003e","brand":"SightGlassTube","offers":[{"title":"Default Title","offer_id":49040694116664,"sku":"","price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0873\/1181\/0872\/files\/level_indicator_oil_sight_glasses.jpg?v=1743166612","url":"https:\/\/www.sightglasstube.com\/de\/products\/frog-eye-sight-glass-npt-thread-high-temperature-resistant-screw-oil-sight-glass","provider":"SightGlassTube","version":"1.0","type":"link"}