{"product_id":"77138-01-bently-nevada-weatherproof-housing-lvdt-enclosure","title":"77138-01 Bently Nevada Weatherproof Housing LVDT Enclosure","description":"\u003ch3\u003e\u003cstrong\u003e77138-01 LVDT Environmental Protection Enclosure\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e77138-01\u003c\/strong\u003e\u003c\/span\u003e weatherproof housing provides rugged environmental containment for linear variable differential transformer (\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eLVDT\u003c\/strong\u003e\u003c\/span\u003e) position sensors. Manufactured in the U.S.A. by \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada\u003c\/strong\u003e\u003c\/span\u003e, this heavy-duty \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e77138 Series\u003c\/strong\u003e\u003c\/span\u003e enclosure shields sensitive displacement measurement electronics from moisture, aggressive chemical washdowns, and blowing dust. Instrument engineers deploy this enclosure in outdoor turbine yards, hydroelectric plants, and harsh petrochemical skids to guarantee stable valve stem and governor feedback.\u003c\/p\u003e\n\n\u003ch3\u003e\u003cstrong\u003ePhysical Dimensions \u0026amp; Measurement Range\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eParameter\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003eEngineering Specification\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e77138-01\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e\u003cstrong\u003eLVDT Weatherproof Housing \/ Sensor Enclosure\u003c\/strong\u003e\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eInternal Travel \/ Range\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e30.5 cm (12.0 inches) nominal stroke capacity\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eHousing Dimensions\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003e57.2 cm × 54.6 cm × 62.2 cm (22.5 in × 21.5 in × 24.5 in)\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003e\u003cstrong\u003eCountry of Origin\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd\u003eMade in U.S.A.\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003e\u003cstrong\u003eMechanical Integration \u0026amp; Sealing Best Practices\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStructural Foundation:\u003c\/strong\u003e Bolt the \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003e77138-01\u003c\/strong\u003e\u003c\/span\u003e chassis to a rigid vibration-isolated bracket near the monitored machine actuator.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCable Entry Management:\u003c\/strong\u003e Route all sensor signal leads through bottom-entry conduit hubs to prevent moisture ingress.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGasket Inspection:\u003c\/strong\u003e Verify compression of the internal perimeter elastomer seal during annual turnaround inspections.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCore Alignment:\u003c\/strong\u003e Align the internal LVDT core rod strictly parallel to the actuator stroke to eliminate side-load friction.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e\u003cstrong\u003eAdvanced Frequently Asked Questions (FAQ)\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eQ1: How does the \u003cspan style=\"color: #0056b3;\"\u003e77138-01\u003c\/span\u003e enclosure mitigate internal condensation in high-humidity climates?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA1: The heavy enclosure walls accommodate internal space heaters or desiccant packs, preventing dew point accumulation during rapid ambient temperature drops.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ2: Can this housing accommodate third-party displacement sensors alongside \u003cspan style=\"color: #0056b3;\"\u003eBently Nevada\u003c\/span\u003e LVDTs?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA2: While engineered specifically for \u003cspan style=\"color: #0056b3;\"\u003e\u003cstrong\u003eBently Nevada\u003c\/strong\u003e\u003c\/span\u003e transducers, the 57.2 cm × 54.6 cm × 62.2 cm internal volume fits various industrial stroke sensors provided mounting brackets align.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ3: What specific material grade constitutes the exterior shell of the \u003cspan style=\"color: #0056b3;\"\u003e77138-01\u003c\/span\u003e?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA3: It utilizes heavy-gauge, corrosion-resistant industrial alloy coated with a UV-stable epoxy finish to withstand marine and chemical plant atmospheres.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ4: How does field alignment affect the 30.5 cm measurement range inside the housing?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA4: Mechanics must center the LVDT core within the 12-inch linear window to ensure symmetrical electrical output across full valve travel.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ5: Why is bottom-entry conduit routing critical for this weatherproof unit?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eA5: Side or top cable entries risk channeling rainwater along conduit threads; bottom entry leverages gravity to maintain waterproof integrity.\u003c\/p\u003e","brand":"Bently Nevada","offers":[{"title":"Default Title","offer_id":68057850446006,"sku":"77138-01","price":26.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/plcsparehub3_a439079d-6a07-41c5-b8c4-9c46c2e7b92a.png?v=1794539070","url":"https:\/\/www.plcsparehub.com\/products\/77138-01-bently-nevada-weatherproof-housing-lvdt-enclosure","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}