Ex d IIC T4 Explosion Proof Motor B14 Small Flange

The Ex d IIC T4 Explosion Proof Motor B14 Small Flange is a precision flange-type power unit specifically designed for explosive gas environments such as those in the petroleum, chemical, and pharmaceutical industries. Unlike the B3 (foot-mounted) and B5 (large flange-mounted) models, the B14 motor uses a rectangular small flange mounting structure, which is the industry-recognized standard for instrument motors.Product Advantages100% in-situ replacement: B14 is the international standard for industrial instrument motors. If you are looking for a replacement for an old imported instrument motor, or if your equipment is a standard gear pump/metering pump, B14 is the only solution that does not require modification of the mounting holes, saving time and effort.

IIC-level high-risk protection:

For the transportation of high-risk media such as methanol, benzene, and hydrogen in the chemical industry, the IIC-level explosion-proof design (protected against hydrogen/acetylene) combined with a T4 group temperature rating (≤85℃) provides the highest level of safety protection, preventing catastrophic accidents caused by high surface temperatures or internal sparks in the motor.

CT4-level intrinsic safety:

Strictly complies with GB 3836 standards, possessing Ex d IIC T4 Gb explosion-proof ratings. The high-strength explosion-proof enclosure can lock in internal sparks, controlling the surface temperature to ≤85℃, preventing the ignition of highly reactive dangerous gases such as hydrogen and acetylene, making it a "safety guardian" for the transportation of flammable and explosive liquids. 

High-efficiency, low-noise operation:

Utilizing an IE3/IE4 ultra-high-efficiency magnetic circuit design, coupled with a precision-machined gearbox interface (often used with a reducer), it boasts high operating efficiency, minimal vibration, and low noise. Even in 24-hour continuous operation of a chemical production line, it maintains an extremely low failure rate.

Worry-free certification and compliance:

Each Ex d IIC T4 Explosion Proof Motor B14 Small Flange holds CCC explosion-proof certification and an explosion-proof certificate, ensuring compliance with national safety standards and guaranteeing smooth acceptance of your chemical projects.

Specifications

YBX3 Series Explosion-proof Motors installation and overall dimensions

B5/B35H71-132

B14/B34H71-132

Applications

Widely used in precision chemicals, fluid transport, and high-risk areas with confined spaces, the Ex d IIC T4 Explosion Proof Motor B5 Flange Mounted, with its unique standard interface, is the preferred choice for the following scenarios:

Chemical fluid transport: Direct drive for gear pumps, screw pumps, and metering pumps for transporting flammable and explosive organic solvents, acids, alkalis, or high-viscosity media.

Automation instrumentation: Power drive for various chemical analysis instruments, automatic samplers, and recorders.

Small mixing equipment: Laboratory reaction vessels, small paint dispersers, and pharmaceutical mixers.

Printing and packaging machinery: Ink supply systems for gravure printing machines and glue pumps for laminating machines.

Installation Guide

Core Principles: Maintain the integrity of the explosion-proof surface and ensure flange alignment.

Pre-installation Inspection:

1. Verify Flange: Confirm that the mounting hole spacing of the equipment matches the mounting hole spacing (rectangular dimensions) of the motor B14 flange. 2. Inspect Explosion-proof Surface: Inspect the explosion-proof surface of the motor shaft extension for rust or mechanical damage. If slight rust is present, sand it with fine sandpaper and apply 204-1 anti-rust oil.

Installation Steps:

1. Align the Stop: Align the motor flange stop with the equipment input shaft or pump body interface and gently push it in. Do not strike the shaft extension with a hammer.

2. Tighten Bolts: Use the diagonal tightening method to evenly tighten the flange bolts to prevent motor deformation or seal failure due to uneven force.

Wiring Requirements:

1. Cable Seal: Explosion-proof glands must be used. Ensure the cable entry device compresses the sealing ring to prevent spark transmission.

2. Grounding Protection: The motor grounding bolt must be reliably connected to the earth.

Corporate Strength

Company Honors and Qualifications

Partner Brands

FAQ

Q1: What's the difference between B14 and B5 installation?

A: Although both are flange installations, the dimensions and standards differ.

B5 (Large Flange): Typically a large, round flange (e.g., FF205), used for high-power fans and pumps, with a larger flange diameter.

B14 (Small Flange): A rectangular flange, specifically used for low-power (0.12kW-4kW) instruments and gear pumps. B14 is a common standard in the instrumentation industry, while B5 is typically used in general machinery.

Q2: Can this motor be used on pumps that transport methanol?

A: Absolutely. Methanol is a flammable liquid, and its vapor is classified as a Class IIA or IIB hazardous gas. This Ex d IIC T4 Explosion Proof Motor B5 Flange Mounted has IIC explosion-proof certification (higher than IIB requirements) and a surface temperature group of T4 (≤85℃), far below the ignition temperature of methanol, ensuring absolute safety.

Q3: What special precautions should be taken when wiring an explosion-proof motor?

The core issue is sealing.

1. Never leave unused terminals idle: Unused wiring ports must be sealed with explosion-proof blind plugs (end caps).

2. Tighten the sealing ring: After the cable is inserted, the gland must be tightened to ensure the rubber sealing ring tightly grips the cable. This is not only for waterproofing but also to prevent internal explosion flames from escaping through cable gaps.