Description
Bently Nevada 43217-02 Accelerometer Mounting Kit
Product Overview
The Bently Nevada 43217-02 is an accelerometer mounting kit used to mechanically house and protect compatible vibration accelerometers in machinery condition-monitoring installations. Within the 43217 series, the -02 configuration is specifically designated for the Bently Nevada 330400 and 330425 accelerometers and includes the optional extension together with both flat and dome covers. The mounting assembly is intended to protect the accelerometer from physical and environmental exposure while providing a controlled cable/conduit entry arrangement.
From an installation standpoint, this is not an electronic signal-conditioning module and should not be treated as a substitute for an accelerometer, vibration monitor, or monitoring cable. It is mechanical hardware forming part of the sensor installation. The kit uses a 1/2-14 NPT outlet and mates with 12 mm (1/2-inch) flexible or rigid conduit. The published design includes a housing base, cover assembly, cable grip, gasket, O-ring, and mounting hardware. Bently Nevada documentation states that properly installed kits using an accelerometer mounting base and suitable conduit meet API 670 requirements.
For a legacy machinery-monitoring system, the Bently Nevada 43217-02 matters when the mechanical enclosure must match the installed accelerometer and existing field arrangement. The Bently Nevada 43217-02 should be purchased by complete part number rather than simply by the description “accelerometer housing,” because the suffix determines the supported accelerometer configuration. The Bently Nevada 43217-02 is therefore particularly relevant to maintenance work on installations using 330400 or 330425 sensors where the original mounting arrangement needs to be restored.
Product Introduction
Sensor replacement is only half the job when the accelerometer sits in a harsh machinery environment. The 43217-02 provides the mechanical enclosure configuration intended for 330400 and 330425 accelerometers, including the extension and both cover options.
The practical procurement issue is fit, not electronics: verify the sensor model, mounting base, conduit arrangement, enclosure components, and machine mounting surface before installation. The datasheet specifically calls for the machine surface to be spot faced before mounting.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Product Model | 43217-02 |
| Manufacturer / Brand | Bently Nevada |
| Product Type | Accelerometer Mounting Kit |
| Series | 43217 |
| Compatible Accelerometers | 330400 and 330425 |
| Configuration | Optional extension with flat and dome covers |
| Outlet Port | 1/2-14 NPT |
| Flat Cover Material | Copper-free aluminum |
| Dome Cover Material | Copper-free aluminum |
| Extension Material | Copper-free aluminum |
| Housing Base Material | Feraloy |
| Gasket / O-ring | Neoprene |
| Mounting Screws | Three 1/4-20 UNC × 0.62 screws with lock washers |
| Conduit Compatibility | 12 mm / 1/2-inch flexible or rigid conduit |
| Mounting Pattern | Three 7.14 mm holes equally spaced on a 39.6 mm bolt circle |
| Inner Base Circle | 28.58 mm |
| Weight with Flat Cover | 320 g |
| Weight with Dome Cover | 600 g |
| Weight with Dome Cover and Extension | 737 g |
| Datasheet | 141630 Rev. G |
The material, weight, conduit, mounting-hole, and configuration information comes from the Bently Nevada 43217/37442 mounting-kit documentation.
43217-02
Major Features and Advantages
Designed around the 330400 and 330425 accelerometer family
The most important selection criterion is the sensor interface. Bently Nevada’s ordering information assigns the 43217-02 configuration to the 330400 and 330425 accelerometers. That makes the suffix materially important during replacement work. A visually similar mounting enclosure with a different suffix should not be assumed to fit.
Extension plus two cover configurations
The -02 version provides both a standard flat cover and an optional dome cover together with the extension. This gives the installation more mechanical configuration flexibility than the basic 43217-00 arrangement. The extension is part of the defined -02 configuration rather than an arbitrary field modification.
Environmental and mechanical protection
The mounting kit is designed to protect an accelerometer from adverse physical and environmental conditions. Its housing, covers, gasket, O-ring, and cable-grip arrangement form a physical enclosure around the sensor. Bently Nevada describes the mounting kit as water-tight and dust resistant when properly configured and installed.
Controlled conduit interface
The 1/2-14 NPT outlet provides a defined interface for the associated flexible or rigid conduit. That is useful in machinery-monitoring installations where the accelerometer cable must be protected from mechanical damage, contamination, and uncontrolled routing.
Defined mounting geometry
The published drawings identify three 7.14 mm mounting holes equally spaced on a 39.6 mm diameter bolt circle, with a 28.58 mm diameter base circle. These dimensions are worth checking against the existing machine mounting arrangement before procurement.
API 670 installation context
Bently Nevada documentation states that properly installed mounting kits, when used with an appropriate accelerometer mounting base and rigid or flexible conduit, meet API 670 requirements. This should not be interpreted as an independent certification claim for every possible installation; the complete installation, mounting method, applicable approvals, and site engineering requirements still matter.
Related Products
- Bently Nevada 43217-00 — Basic 43217 mounting-kit configuration with flat cover for the 24147-01 accelerometer.
- Bently Nevada 43217-01 — 43217 configuration with flat and dome covers for the 23732-01 accelerometer.
- Bently Nevada 330400 — Compatible accelerometer family specifically identified for the 43217-02 mounting configuration.
- Bently Nevada 330425 — Another compatible accelerometer identified in the 43217-02 ordering information.
- Bently Nevada 164952-AA-BB — 303 stainless-steel accelerometer mounting-kit family intended for additional corrosion protection.
- Bently Nevada 37442 — High-temperature accelerometer mounting-kit family for applicable 24147-01 and 23732-01 configurations.
- Bently Nevada 14847-AA — 1/2-inch Sealtite flexible conduit assembly used with the mounting-kit installation architecture.
- Bently Nevada 37439-01 — Accelerometer mounting base associated with the 23732-01 installation.
The 43217 suffixes are application-specific; they should not be treated as interchangeable housings merely because the basic model number is similar.
FAQ
What is the Bently Nevada 43217-02?
It is a mechanical accelerometer mounting kit configured for 330400 and 330425 accelerometers. The -02 version includes an extension plus both flat and dome cover options.
Does 43217-02 measure vibration?
No. The 43217-02 is passive mechanical hardware. The accelerometer installed inside the mounting arrangement performs the vibration measurement. The monitoring system then receives the accelerometer signal through the associated cable and signal-processing hardware.
Can I use 43217-02 with a 330400 or 330425?
Yes. The manufacturer’s ordering information specifically assigns the -02 configuration to the 330400 and 330425 accelerometers. Verify the complete sensor part number and existing mounting-base arrangement before installation.
Can I substitute 43217-01 for 43217-02?
Not without checking the accelerometer configuration. The two suffixes correspond to different sensor configurations: 43217-01 is specified for the 23732-01 accelerometer, while 43217-02 is specified for 330400 and 330425 accelerometers.
Can I hot-swap this mounting kit?
No electronic hot-swap concept applies to this item. The mounting kit is mechanical hardware. Removing it from an installed accelerometer should still be handled under the site’s machinery-maintenance and measurement-channel procedures, particularly when the monitored machine is operating.
Does 43217-02 contain firmware or configuration data?
No. It contains no processor, firmware, memory, or user configuration. It is a mechanical sensor enclosure and mounting assembly.
What should I check when buying New Surplus 43217-02?
Check the complete 43217-02 marking, confirm that the extension, flat cover, dome cover, cable grip, gasket, O-ring, and mounting hardware correspond to the expected configuration, and inspect the aluminum and Feraloy components for corrosion or physical damage. Confirm the supplier’s actual warranty and condition statement rather than assuming that “New Surplus” means factory-sealed inventory.
Procurement Note
For a replacement installation, the key point is the -02 suffix. Bently Nevada’s documentation does not describe 43217-02 as a generic accelerometer housing; it specifically assigns that configuration to 330400 and 330425 accelerometers. The enclosure uses a 1/2-14 NPT outlet and a defined three-hole mounting pattern, so physical fit should be checked before the purchase order is released.
One practical detail is easy to miss: the machine mounting surface is specified to be spot faced before mounting. If the existing installation has been modified, corroded, or repaired over the years, checking the mounting surface can prevent a supposedly correct replacement kit from becoming a field-fitting problem.
For corrosion-sensitive locations, do not assume the standard 43217-02 materials are equivalent to the optional 303 stainless-steel mounting-kit family. Bently Nevada identifies 164952-AA-BB separately for extra corrosion protection.
