The Bently Nevada 31000-16-05-00-65-03-02 proximity probe housing assembly delivers exceptional mechanical support and environmental sealing for radial vibration and Keyphasor measurements on turbines, compressors, and pumps. This particular configuration works exclusively with a 3300 XL 8 mm probe, making it a reliable choice for continuous machinery condition monitoring.
Its robust construction incorporates advanced materials that withstand severe operating conditions. The main housing uses glass-reinforced Polyphenylene Sulfide (PPS) thermoplastic with conductive fibers, while the sleeve and retaining chain are machined from AISI 304 stainless steel. Additionally, the outer sleeve and exterior screws utilize AISI 303 stainless steel for enhanced corrosion resistance. This assembly fully complies with the American Petroleum Institute's (API) 670 Standard for externally mounted proximity probe housings.
Understanding the part number configuration helps you verify the exact features of the 31000-16-05-00-65-03-02 model. The breakdown is as follows:
A: Probe Option (16) : Designed for a 3300 XL 8 mm probe with connector.
B: Probe Cable Length (05) : Includes a 0.5-meter (20-inch) probe cable.
C: Standoff Adapter (00) : Supplied without a standoff adapter .
D: Probe Penetration (65) : Provides 6.5 inches of probe penetration depth.
E: Fittings Option (03) : Comes with two plugs, one 3/4-14 NPT fitting , one 3/4-14 to 1/2-14 NPT SST reducer , and a cable seal grip with grommets for cable sizes 1/8–3/16 in, 1/4–5/16 in, and 5/16–3/8 in.
F: Mounting Thread (02) : Equipped with a 3/4-14 NPT mounting thread.
The 31000-16-05-00-65-03-02 carries significant environmental certifications. It holds a Type 4X rating from the Canadian Standards Association (CSA) and an IP66 rating verified under standard SC115582-1 (e) 106. Moreover, it meets the CENELEC standard EN50014 for electrostatic dissipation of plastic materials in hazardous locations.
The sealing system deserves special attention. When paired with a 3300 XL 8 mm probe, the housing effectively seals differential pressure between the probe tip and the main body. The internal seal uses a Viton O-ring, while the sleeve-to-housing interface uses a Neoprene O-ring. For applications requiring pressure containment testing, please contact our custom design department, as standard units ship without pressure testing.
Material selection for the 31000-16-05-00-65-03-02 directly influences its durability and service life in harsh environments.
| Parameter | Specification |
|---|---|
| Housing Material | Glass-reinforced Polyphenylene Sulfide (PPS) thermoplastic with conductive fibers |
| Sleeve Material and Retaining Chain | AISI 304 stainless steel |
| Outer Sleeve and Exterior Screws | AISI 303 stainless steel |
| O-Ring Material | Neoprene |
| Recommended Torque (retaining nut) | 29.4 N·m (260 in·lb) |
The housing demonstrates impressive mechanical strength. In standard tests, the outer sleeve was mounted horizontally on a test stand, with the housing attached through an end hole. The assembly supported 912 N (205 lb) placed approximately 38 mm (1.5 inches) from the unsupported end, with the cover fastened and grounding liner installed.
Impact resistance is another critical strength. BASEEFA certified the housing to withstand two separate 4 Joule (3.0 ft·lb) impacts at -39°C (-38°F) and at 115°C (239°F) . Furthermore, CSA verified that housing and cover samples withstand a 7 Joule (5.2 ft·lb) impact at ambient room temperature.
The 31000-16-05-00-65-03-02 performs reliably across extreme temperature conditions. Its operating range spans from -51°C to +105°C (-60°F to +221°F) , accommodating applications from frigid outdoor installations to high-temperature machinery compartments.
Its protection ratings ensure dependable operation against moisture, dust, and corrosive elements. The Type 4X rating guards against corrosion, falling dirt, rain, sleet, snow, and hose-directed water. Meanwhile, the IP66 rating confirms complete dust protection and resistance to powerful water jets, making this housing suitable for washdown environments.
Proper installation of the 31000-16-05-00-65-03-02 ensures optimal measurement accuracy and long-term reliability. Follow these recommendations:
First, confirm that the mounting thread (3/4-14 NPT ) matches your application's mounting hole specifications. This thread size remains standard for this housing series.
Next, verify that the probe cable length (0.5 meters ) and probe penetration depth (6.5 inches ) suit your machinery's dimensional requirements. The penetration depth critically affects the probe's sensing zone and signal linearity.
When tightening the retaining nut, apply the recommended torque of 29.4 N·m (260 in·lb) . Over-tightening may damage the housing or compromise the O-ring seals, while under-tightening can permit leaks or cause loose connections.
For installations requiring pressure sealing verification, contact our custom design department to arrange pressure testing services.
Each 31000-16-05-00-65-03-02 order includes the following items:
1 × Proximity probe housing assembly (with sleeve and retaining chain)
1 × Neoprene O-ring (pre-installed)
1 × Mounting hardware kit (screws and washers)
2 × Plugs (as specified by fittings option 03)
1 × 3/4-14 NPT fitting
1 × 3/4-14 to 1/2-14 NPT SST reducer
1 × Cable seal grip with three grommet sizes (1/8–3/16 in, 1/4–5/16 in, 5/16–3/8 in)
1 × Installation instruction sheet
Note: The packaging does not include calibration certificates, warranty documents, or additional fittings beyond those specified.
All orders ship via FedEx , UPS , or DHL . We select the most suitable carrier based on your destination and delivery timeline. Tracking numbers are provided promptly after dispatch.
1. Which probe works with the 31000-16-05-00-65-03-02 housing?
This housing is specifically engineered for the 3300 XL 8 mm probe . Using other probe models may compromise the sealing performance and measurement accuracy.
2. Is this housing suitable for hazardous area installations?
Yes. The housing meets CENELEC standard EN50014 for electrostatic dissipation and carries CSA Type 4X and IP66 ratings. However, always verify compliance with your local hazardous area regulations before installation.
3. What does fittings option 03 include?
Option 03 provides two plugs, one 3/4-14 NPT fitting, one 3/4-14 to 1/2-14 NPT SST reducer, and a cable seal grip with three interchangeable grommets for cable diameters ranging from 1/8 inch to 3/8 inch.
4. Why does this model have no standoff adapter?
Option code 00 for the standoff adapter means this housing mounts directly without an extended standoff. This configuration suits applications where space constraints or measurement geometry do not require additional offset.
5. How do I read the full model number 31000-16-05-00-65-03-02?
Each segment defines a specific configuration: probe type (16), cable length (05), standoff adapter (00), penetration depth (65), fittings (03), and mounting thread (02). Refer to the Technical Specifications section above for the complete breakdown.
| Brand Name | |
| Model No. | 31000-16-05-00-65-03-02 |
| Product Type | Probe Housings |
| hasMerchantReturnPolicy | Adjust according to reality |
| Shippingdetails | Adjust according to reality |
