Product Introduction
When fluid leakage threatens machine reliability and operational uptime, the Bently Nevada 43501-01-04-02 Low Pressure Cable Seal provides a robust solution. Designed to pass one to four 95-ohm transducer cables or one to two 25mm DE and 50mm DE transducer cables through a single hole in a machine case or other barrier, this seal uses a molded silicone rubber grommet to prevent fluid leakage along the cable outer jacket. The Bently Nevada 43501-01-04-02 is made in the U.S.A. and is rated to 345 kPa (50 psi) across the grommet from high pressure to low pressure.
Technical Specifications
| Parameter |
Value |
| Overall Length (assembled, tightened) |
35mm (1.4 inches) |
| Pressure Rating (across grommet) |
345 kPa (50 psi) |
| High Pressure Side Thread |
1/2-14 NPT (option code 01) |
| Low Pressure Side Thread |
3/4-14 NPT (option code 02) |
| Fitting Options |
1/2-14 NPT and 3/4-14 NPT |
| Cable Grommet Capacity |
Up to 4 cables (one hole punched, three partially pre-drilled) |
| Absolute Pressure Limit |
1.0 psi (limited by cable/probe/connector in practice) |
Application Scenarios
The Bently Nevada 43501-01-04-02 is primarily intended for sealing lube oil in bearing housings and machine cases. In turbine or compressor applications, it allows transducer cables to exit oil-filled compartments without leaks. It also serves in any rotating machinery where fluid containment around sensor cables is critical. The seal does not prevent leaks through the cable braid or center conductor—only along the cable outer jacket and through the seal body itself.
Installation and Setup Guidance
Mount the Bently Nevada 43501-01-04-02 in a hole tapped with either 1/2-14 NPT or 3/4-14 NPT pipe threads. The seal has external pipe threads on both ends to mate with the machine’s tapped hole and with conduit or housing. Choose the grommet option that matches the number and type of cables. For up to four cables, use the 04 grommet configuration—one hole is punched, and three are partially predrilled for custom punching. Ensure the grommet is properly seated to achieve the rated pressure seal.
Maintenance and Reliability
Inspect the silicone rubber grommet periodically for cuts or compression set. The seal’s reliability depends on the cable outer jacket integrity—any pinholes or cuts can bypass the seal. In high-temperature environments, monitor the grommet for hardening. The Bently Nevada 43501-01-04-02 is rated to 345 kPa (50 psi) continuous, but actual performance can be affected by cable condition and installation quality. Regular inspection every six months is recommended for critical machinery.
Selection Guide and Purchasing Advice
Before purchasing the Bently Nevada 43501-01-04-02, verify your machine’s thread size: the high pressure side requires 1/2-14 NPT (option 01) and the low pressure side 3/4-14 NPT (option 02). Confirm the number of cables (up to four) and their diameters. For additional guidance or to place an order, contact a trusted supplier like PLC Source PRO (ubest101.myshopify.com) to ensure genuine Bently Nevada parts and correct configuration.