The 31000-28-05-00-028-01-02 is a specialized housing assembly from Bently Nevada. It protects and secures 3300 XL 8 mm proximity probes in industrial applications. Moreover, this housing allows technicians to access and adjust the probe gap externally. This crucial feature eliminates the need for costly machine disassembly during maintenance.
This model fully complies with the American Petroleum Institute (API) 670 Standard for externally mounted housings. Therefore, it is a reliable choice for critical machinery protection systems. This housing functions as a key component for monitoring shaft vibration and position.
The Bently Nevada 31000 housing offers outstanding environmental protection. Its glass-reinforced PPS thermoplastic body contains conductive fibers to dissipate static. Furthermore, the design includes an AISI 304 stainless steel sleeve and retaining chain. The outer sleeve and screws are made from AISI 303 stainless steel for maximum corrosion resistance.
Additionally, the housing's Neoprene O-ring ensures a tight seal against moisture and contaminants. The complete assembly carries a Type 4X rating certified by the Canadian Standards Association (CSA). It also holds an IP66 rating verified by SC115582-1 (e) 106. Meanwhile, the CENELEC standard EN50014 rating guarantees safe electrostatic dissipation in hazardous areas.
This housing withstands extreme temperature conditions from -51°C to +105°C (-60°F to +221°F). Its impact strength is exceptional as well. BASEEFA certified the housing to survive two separate 4 Joule (3.0 ft·lb) impacts at -39°C and at 115°C. Furthermore, CSA verified that samples of the housing and cover withstand a 7 Joule (5.2 ft·lb) impact at ambient room temperature.
In terms of mechanical support, the outer sleeve can bear a significant load. When mounted on a test stand, the housing supported 912 N (205 lb) placed approximately 38 mm from the unsupported end. This structural integrity ensures the 31000-28-05-00-028-01-02 remains stable even under heavy vibration or accidental impact.
The product number 31000-28-05-00-028-01-02 breaks down into specific options. First, the "28" probe option indicates compatibility with the 3300 XL 8 mm probe and includes multiple agency approvals. Next, the cable length is 0.5 metre (20 inches), designated by "05". The "00" standoff adapter option means no adapter is included.
For probe penetration, the "028" specifies a 2.8-inch depth. The fittings option "01" supplies one 3/4-14 NPT fitting and two plugs. Finally, the mounting thread option "02" is a 3/4-14 NPT thread, which is required when ordering a standoff adapter. This configuration makes the Bently Nevada 31000 housing versatile for many machine casing thicknesses.
Proper installation of the 31000-28-05-00-028-01-02 ensures reliable vibration monitoring. Begin by selecting the correct mounting location on the machine casing. Ensure the mounting surface is clean and free from burrs. Apply thread sealant to the 3/4-14 NPT fitting to prevent leakage. Then, thread the housing assembly into the casing opening.
Next, tighten the retaining nut to the recommended torque of 29.4 N·m (260 in·lb). Over-tightening may damage the housing or the probe. After installation, connect the probe cable to the monitoring system. The 0.5-metre cable provides flexibility for nearby junction boxes. Finally, perform a gap adjustment using an external micrometer or dial indicator to set the probe to the required air gap.
This housing is commonly used in turbines, compressors, pumps, and fans. It is particularly suitable for radial vibration monitoring and Keyphasor speed measurements. The Bently Nevada 31000-28-05-00-028-01-02 also serves in thrust position monitoring applications. Its robust construction makes it ideal for offshore platforms, refineries, and chemical plants.
Because of its IP66 and Type 4X ratings, this housing performs reliably in dusty, wet, or corrosive environments. The stainless steel sleeve resists rust even in high-humidity settings. Consequently, maintenance intervals can be extended, reducing overall operational costs.
1 x Bently Nevada 31000-28-05-00-028-01-02 Probe Housing Assembly
1 x AISI 304 stainless steel retaining sleeve
1 x AISI 303 stainless steel outer sleeve
1 x Neoprene O-ring seal
1 x 3/4-14 NPT fitting
2 x 3/4-14 NPT plugs
1 x grounding liner (installed)
1 x installation instruction sheet (printed)
All orders ship via FedEx, UPS, or DHL. Tracking numbers are provided within 24 hours of dispatch. Express delivery typically takes 3 to 7 business days depending on the destination region.
1. What probes are compatible with this housing?
This housing is specifically designed for Bently Nevada 3300 XL 8 mm proximity probes. It supports multiple approvals and fits the designated probe length and diameter.
2. Can I adjust the probe gap after the housing is installed?
Yes, external adjustment is possible without removing the housing from the machine casing. This feature reduces downtime significantly during routine maintenance.
3. Is this housing suitable for outdoor use?
Absolutely. With IP66 and Type 4X ratings, it resists water jets, dust, and corrosion. The stainless steel components also provide excellent weather resistance.
4. What is the maximum ambient temperature for this unit?
The housing operates continuously between -51°C and +105°C (-60°F to +221°F). Short-term excursions beyond this range may affect performance.
5. Does this model include a cable connector?
Yes, the probe option includes a connector for the 0.5-metre cable. This simplifies field wiring and reduces installation errors.
| Brand Name | |
| Model No. | 31000-28-05-00-028-01-02 |
| Product Type | Proximity Probe Housing |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
