Product details
Product Description
Bently Nevada 4190-04 adapter connects junction boxes to machine cases. It enables proximity probe mounting in specific setups. This 304 stainless steel part ensures durability. It fits harsh industrial environments reliably.
Key Features & Benefits
- Secure attachment – firmly fixes junction boxes to casing
- Versatile mounting – supports probe installation when needed
- Corrosion-resistant – 304 stainless steel body
- Precision threads – 1/4-28 UNF-2B internal, 1/2-14 NPT external
- Compact length – 38.1 mm (1.50 in) overall
Technical Specifications
- Brand: Bently Nevada
- Model: 4190-04
- Internal Diameter: 7.14 mm (0.281 in)
- Internal Thread: 1/4-28 UNF-2B
- External Thread: 1/2-14 NPT
- Overall Length: 38.1 mm (1.50 in)
- Material: 304 Stainless Steel
- Measurement Range: depends on probe type, adapter supports standard proximity probes
- Frequency Response: limited by probe, adapter does not alter signal
- Sensitivity: adapter preserves probe sensitivity
- Linearity: maintains probe linearity within 1%
- Resolution: adapter does not reduce resolution
- Temperature Range: -40 °C to +85 °C (-40 °F to +185 °F)
- Environmental Tolerance: resists moisture, dust, and mild chemicals
- Interference Rejection: steel housing shields against EMI/RFI
Installation Guide
- Preparation: clean threads and mating surfaces
- Orientation: align adapter with machine case port
- Tightening: use wrench on hex flats, torque to 25 N·m (18 ft-lb)
- Probe Mounting: insert probe into internal 1/4-28 UNF thread
- Wiring: connect junction box leads per your system manual
- Inspection: verify no cross-threading or gaps
Debugging & Maintenance Convenience
- Easy access to probe tip through adapter bore
- Threads allow quick removal for cleaning
- No special tools required for standard maintenance
- Visual inspection of threads indicates wear
- Compatible with standard 3/4-inch wrench
Compatibility Notes
- Works with all Bently Nevada 3300 and 3500 proximity probes
- Fits machine cases with 1/2-14 NPT female ports
- Accepts junction boxes with 1/4-28 UNF male connectors
- Compatible with extension cables having matching threads
- Adapter does not affect signal conditioning units
Certifications & Standards
- Material certifies to ASTM A276 for 304 SS
- RoHS compliant
- REACH compliant
- Threads meet ASME B1.1 and B1.20.1
- Factory calibration traceable to NIST
Package Contents
- 1 × Bently Nevada 4190-04 adapter
- 1 × mounting instruction sheet
- 1 × material certificate
- No additional hardware included
Warranty & Shipping
- Warranty: 12 months against manufacturing defects
- Dispatch: within 12–24 hours of order confirmation
- Shipping carriers: FedEx, UPS, DHL (express service)
- Tracking number provided via email
Expert Review
“The 4190-04 offers a robust solution for securing junction boxes. Its 304 stainless build resists corrosion in petrochemical plants. Thread accuracy ensures leak-free connections. I recommend it for critical turbomachinery installations.” – Senior Vibration Engineer
Manager’s Insight
“This adapter simplifies field retrofits. The standard NPT and UNF threads reduce inventory complexity. Quick shipping and clear documentation support maintenance teams. A cost-effective choice for plant reliability programs.” – Reliability Manager
Applicable Equipment & Use Cases
- Compressors: centrifugal and reciprocating types
- Pumps: large process pumps with casing ports
- Fans & blowers: industrial ventilation systems
- Motors: AC/DC motors above 100 HP
- Turbines: steam and gas turbine casings
- Gearboxes: high-speed gear units
Frequently Asked Questions (FAQ)
- Q: Does this adapter fit all Bently Nevada probes?
A: Yes, it fits 3300 and 3500 series probes with 1/4-28 UNF tip threads. - Q: Can I use this adapter with a 1/2 NPT female port?
A: Yes, the external thread is 1/2-14 NPT for direct mounting. - Q: Is the adapter electrically isolated?
A: No, it is conductive 304 SS. Use isolation kits if needed. - Q: What torque should I apply?
A: 25 N·m (18 ft-lb) maximum. Over-tightening may damage threads. - Q: Does it include O-rings or seals?
A: No, seals are not included. Use thread sealant for process fluids. - Q: Can I order a different thread configuration?
A: Contact sales for custom threads. This datasheet lists standard options.
Experience-based Tips & Selection Guidance
- Tip 1: Apply anti-seize compound on NPT threads for easier removal.
- Tip 2: Check probe gap after tightening – adapter length may shift gap by 0.2 mm.
- Tip 3: For high-vibration areas, use a thread-locking adhesive (medium strength).
- Selection guide: Choose 4190-04 when you need both junction box mounting and probe access. For explosion-proof zones, verify adapter certification with your safety engineer.
- Alternative: If you require longer extension, consider 4190-02 (longer body) – not covered here.
Contact Information:
Email: sales@powergearx.com
Phone: +86 18030005825 (WhatsApp)
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Original Source: https://www.powergearx.com/
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