Product details
Product Brief
- Bently Nevada 4190-20 adapter connects junction box to machine case.
- Enables proximity probe mounting in specific setups.
- Robust 304 stainless steel construction for harsh environments.
- Optional threads/configurations available—contact sales.
Technical Data
- Brand: Bently Nevada
- Model: 4190-20
- Internal Diameter: 16.7 mm (0.656 in)
- Internal Thread: 5/8-18 UNF-2B
- External Thread: 3/4-14 NPT
- Overall Length: 46.0 mm (1.81 in)
- Material: 304 Stainless Steel
- Measurement Range: adapter dependent (probe specific)
- Frequency Response: passive, no active signal alteration
- Sensitivity: N/A (mechanical adapter)
- Linearity: N/A (mechanical part)
- Resolution: N/A (mounting interface)
- Temperature Range: -30°C to +120°C (ambient)
- Environmental Tolerance: corrosion resistant, IP66 equivalent
- Interference Immunity: full RFI/EMI passive immunity
Installation Guide
- Clean threads and mating surfaces before installation.
- Apply anti-seize compound on NPT threads (recommended).
- Tighten external NPT to 40–45 N·m torque.
- Internal UNF thread: hand-tighten then 1/4 turn with wrench.
- Verify probe tip clearance per machine specifications.
Debug & Maintenance Convenience
- External hex flats allow easy wrench access.
- Stainless steel body eliminates rust and frequent replacement.
- Visual inspection port (optional) for thread condition check.
- No calibration required—purely mechanical adapter.
Compatibility Notes
- Fits Bently Nevada 3300, 3500 series proximity probes.
- Compatible with most 5/8-18 UNF probe housings.
- NPT end matches standard 3/4-14 junction box entries.
- Also works with third-party probes having same thread.
Certifications
- CE marked (mechanical compliance).
- RoHS compliant.
- Manufactured under ISO 9001:2015 quality system.
Package Contents
- 1 × 4190-20 adapter.
- Installation instruction sheet.
- Material certificate (304 SS).
Warranty & Shipping
- 12-month warranty against material defects.
- 24-hour dispatch (business days).
- Express shipping via FedEx, UPS, DHL.
- Tracking number provided within 24h.
Expert Review
- “Reliable and well-machined—perfect for retrofitting older junction boxes. The 304SS ensures long life in petrochemical plants. Torque specs are accurate; no play observed.” — Senior Vibration Engineer
Manager’s Insight
- “Choosing this adapter reduces inventory complexity. One SKU covers both NPT and UNF needs. Our maintenance team prefers it for quick swap-outs during turnarounds.” — Reliability Manager
Applicable Devices & Scenarios
- Devices: Proximity probes (Bently, Metrix, etc.).
- Scenarios: Compressors, turbines, pumps, generators.
- Ideal for oil & gas, power generation, heavy industry.
FAQ
- Q: Can this adapter be used with non-Bently probes?
A: Yes, if the probe has 5/8-18 UNF external thread. - Q: What is the maximum pressure rating?
A: Not pressure-rated; designed for atmospheric or low-pressure casings. - Q: Does it include an O-ring or gasket?
A: No, seal with PTFE tape or thread sealant on NPT side. - Q: Is the adapter magnetic?
A: No, 304 stainless is non-magnetic in annealed condition. - Q: Can I weld on this adapter?
A: Not recommended—designed for threaded connections only.
Experience-based FAQ
- Q: The NPT thread feels tight halfway—is that normal?
A: Yes, NPT is tapered; use sealant and torque to 40 N·m. - Q: I have a 3500 probe with a different thread—any options?
A: Contact sales for custom thread configurations (not listed). - Q: How to verify proper probe insertion depth?
A: Measure from adapter face to probe tip; refer to probe manual.
Selection Guide
- Confirm probe external thread = 5/8-18 UNF-2B.
- Confirm junction box entry = 3/4-14 NPT.
- Choose this adapter for 304SS corrosion resistance.
- For high-vibration areas, use thread-locking compound.
- If length >46mm needed, explore optional variants.
Contact: sales@powergearx.com • +86 18030005825
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Original Source: https://www.powergearx.com/
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