21000-16-05-20-065-04-02 Bently Nevada Proximity Probe Housing Assembly

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Proximity Probe Housing Assembly

21000-16-05-20-065-04-02:

This is a 21000 Proximity Probe Housing Assembly manufactured by Bently Nevada (Baker Hughes). 21000-16-05-20-065-04-02 is an all-metal housing constructed from Aluminum body with a 304 stainless steel sleeve. It includes a pre-installed 3300 XL 8 mm proximity probe with a 0.5-meter cable, a 2.0-inch standoff adapter, and a 6.5-inch probe sleeve.

Parameters - 21000-16-05-20-065-04-02

Probe Type:3300 XL 8 mm (Reverse Mount)
Probe Cable Length:0.5 meter
Standoff Adapter Length:2.0 inches (51 mm)
Probe Penetration (Sleeve Length):6.5 inches (165 mm)
Total Length (CC + DDD):8.5 inches (216 mm)
Mounting Thread:3/4-14 NPT (Machined for 5-7 full threads for increased stiffness)
Housing Material:Aluminum (Body), 304 Stainless Steel (Sleeve)
Fittings (Option 04):One 3/4-14 NPT plug only

Application Areas - 21000-16-05-20-065-04-02

Radial Vibration Monitoring: Steam turbines, gas turbines, centrifugal compressors, pumps, and generators.
Keyphasor (Phase Reference/Speed) Measurement
Industry Compliance & Environment: Machinery Protection Systems in the Oil & Gas, Petrochemical, and Power Generation industries.

Important Cautions - 21000-16-05-20-065-04-02

Explosion-Proof Integrity: This configuration uses EE = 04 (One 3/4-14 NPT plug only). According to Page 6 of the datasheet, this fitting option is rated explosion-proof by CSA. The housing assembly maintains its Class I, Div 1 certification.
Connector Protector: Option AA = 16 does not include a connector protector. If additional mechanical protection for the probe connector interface inside the housing is desired, consider option AA = 34 (3300 XL 8 mm probe with connector protector, multiple approvals).
Sleeve Support Requirement: The total length (CC = 2.0 in + DDD = 6.5 in) is 8.5 inches. This is less than the 12-inch (305 mm) limit, so no additional sleeve support (P/N 37948-01) is required.
Probe Cable Length Compatibility: Option BB = 05 (0.5 meter cable). The maximum C plus D dimension for a 0.5 meter probe is 343 mm (13.5 inches) . The total length for this model is 8.5 inches (216 mm) , which is well within the allowable limit.