Description
The Bently Nevada 43501-01-04-01 is a specialized Low-Pressure Cable Seal fitting designed for use with transducer and proximity probe systems. It provides a reliable mechanical pass-through barrier on machine cases, bearing housings, or protective enclosures, preventing lubricating oil or fluid migration along the exterior of transducer coaxial cables.
Commercial and Logistics Status
| Parameter | Value |
| Condition | Factory Sealed / New Surplus (Verify specific unit availability upon inquiry) |
| Availability | Subject to current inventory status |
| Standard Lead Time | 3 to 5 business days for domestic shipments; international freight times vary |
| Warranty | 12 months standard replacement warranty |
| Pricing Note | Price subject to market conditions; contact us for a firm quote |
Technical Specifications and Part Breakdown
Based on the specific catalog option string (43501-01-04-01):
| Option Code | Feature / Parameter Description | Selected Configuration Value |
| Model | Low-Pressure Cable Seal Base Series | Series 43501 |
| High-Pressure Side Thread (-01) | Process/Machine Connection Thread Size | 1/2-14 NPT external pipe thread |
| Grommet & Washer (-04) | Internal Sealing Configuration | Accommodates up to 4 cables (supplied with 1 hole punched and 3 partially pre-drilled) |
| Low-Pressure Side Thread (-01) | Conduit / Housing Connection Thread Size | 1/2-14 NPT external pipe thread |
| Pressure Rating | Maximum differential pressure across the grommet interface | Up to 345 kPa (50 psi) |
| Vacuum Rating | Absolute pressure limitation | Rated down to 1.0 psi absolute (constrained by cable structural integrity) |
| Sealing Material | Molded elastomer component | Silicone rubber grommet for chemical and lube-oil resistance |
Engineering and Field Integration Notes
Proper installation of the 43501-01-04-01 seal ensures that machine enclosures remain leak-free while safeguarding delicate signal paths against environmental damage.
Integration Guidelines
- Jacket Compression Sealing: The seal relies on radial compression of the molded silicone grommet against the outer jacket of the transducer cable. Ensure cables are free of deep scratches, cuts, or kinks where they pass through the grommet to prevent oil seepage.
- Application Scope: Designed primarily to seal lubricating oil exiting bearing housings on rotating machinery such as steam turbines, centrifugal compressors, and large industrial gearboxes. Note that this fitting seals against exterior jacket leaks only and does not prevent fluid migration through internal core conductors if the cable is physically compromised.
- Thread Sealing: Use appropriate rated thread sealants or tape compatible with your facility’s hazardous area and lubrication standards when screwing the 1/2-inch NPT ends into machine ports and conduit hubs.




