Nickel-Plated Brass Flexible Metal Conduit Connector – DPJ Series

Product Overview

The DPJ Series Nickel-Plated Brass Flexible Conduit Connector is a heavy-duty end-type fitting designed to establish a secure, liquid-tight, and vibration-proof connection between flexible metal conduits and electrical enclosures, junction boxes, or motor terminal boxes.

Engineered with a precision-machined nickel-plated brass body, an internal TPE protective sleeve, a modified rubber sealing gasket, and a galvanized iron / SS304 inner mouthguard, this connector ensures robust mechanical grip while shielding wire insulation from sharp metal hose edges. Delivering an IP66 protection rating and an operating temperature range of -40°C to +105°C, it is widely used in CNC machinery, industrial automation, and power distribution systems.

Key Features

• Secure Flexible Hose Termination: Specially designed for liquid-tight metal flexible conduits, ensuring a tight mechanical clamp that resists pull-out forces and heavy equipment vibration.

• TPE Insulation Guard & Ferrule: Built-in TPE protective ring and galvanized/SS304 mouthguard cover the rough inner cut of the metal hose, preventing wire insulation chafing or short circuits.

• IP66 Weatherproof & Oil-Tight Seal: Equipped with a modified rubber sealing gasket that tightly seals against dust, water jets, cutting coolants, and industrial oils.

• Corrosion-Resistant Heavy-Duty Body: Solid brass construction with premium nickel plating provides outstanding resistance against salt spray, atmospheric corrosion, and mechanical impacts.

• Broad Thermal Operating Range: Functions continuously in extreme working environments from -40°C up to +105°C.

• Flexible Thread & Material Customization: Standard male connection fits G (PF), Metric, PG, and NPT threads. Optional SS304 and SS316L stainless steel bodies are available for aggressive chemical applications.

Applications

Ideal for connecting flexible metal conduits to enclosures in rugged industrial environments:

• CNC Machinery & Machine Tools: Protecting sensor and power wires from hot metal chips, cutting coolants, and lubricating oils.

• Industrial Automation & PLC Cabinets: Terminating protective flexible metal hoses into control panels and junction boxes.

• Motor & Equipment Wiring: Connecting power feeds to electric motors, pumps, and outdoor terminal boxes exposed to vibration.

• Rail Transit & Marine Infrastructure: Cable routing inside protective metal armor conduits on railway cars, ships, and heavy machinery.

Technical Specifications

Product FAQ

Q1: How do I interpret DPJ model size callouts like “DPJ-15-G1/2″”?

In the model designation, DPJ indicates an end-type flexible conduit fitting. The middle number (e.g., 15) specifies the internal/external diameter of the flexible metal conduit ($\phi15$ mm hose), while the suffix (e.g., G1/2″) indicates the male thread size for screwing into your enclosure or junction box.

Q2: What is the purpose of the blue inner TPE sleeve and metal mouthguard?

When flexible metal hoses are cut on site, the raw edges can be sharp. The inner metal mouthguard (ferrule) slips inside the hose end, and the TPE sleeve creates a smooth collar. This prevents the sharp metal edges from cutting into the cable insulation during wire pulling or machine movement.

Q3: Is this conduit connector liquid-tight and suitable for outdoor use?

Yes. The connector features a modified rubber sealing gasket and a tight locknut design that achieves an IP66 rating, making it resistant to rain, splashing water, dust, and washdown environments.

Q4: Can I order this connector in stainless steel or with custom NPT threads?

Yes! While nickel-plated brass is our standard high-volume material, we also manufacture this series in SS304 and SS316L stainless steel. We can also supply NPT, Metric, or PG thread options to match international cabinet knockouts.