★ Explosion-proof Axial Flow Fan Product Types and Specifications: BT35-11

This series is divided into 13 different models based on impeller diameter, sequentially numbered as No. 2.8, 3.15, 3.55, 4, 4.5, 5, 5.6, 6.3, 7.1, 8, 9, 10, and 11.2. Each model can be assembled in 5 different angles: 150, 200, 250, 300, and 350.

★ Features of Explosion-proof Axial Flow Fan:

1. This series features a direct-drive structure with the impeller mounted directly on the motor shaft. It operates at three speeds—2900, 1450, and 960 rpm—under the condition that the circumferential speed of the impeller does not exceed 60 m/s. The impeller rotates counterclockwise when viewed from the inlet side, with the进气 direction at the non-impeller end.

2. Utilizing a cylindrical hub structure, the motor has been redesigned to reduce flow losses, thereby increasing the fan efficiency to 77% by circular area calculation and to 89.5% by annular area calculation. The noise level has been reduced by 3.6 dB compared to A-weighted sound, and the strength at the blade root has been enhanced to prevent blade fracturing.

The BT35 fan consists of four main parts: the impeller, housing, air collector, and motor.

(1) Impeller section: Composed of blades and hubs, made of high-strength antistatic glass fiber reinforced plastic (with corrosion resistance requirements) or cast aluminum blades (without corrosion resistance requirements).

Shell Section: Composed of a duct and a bracket, the duct is made of high-strength antistatic fiberglass (corrosion-resistant requirement) or carbon steel, and the bracket is made of angle steel. The duct is cylindrical with a gap between it and the impeller.

(3) Air Collector Section: Composed of air collector flanges and air collectors. The air collectors are designed with an arc-shaped streamline, which can reduce the loss at the air flow inlet.

(4) Motor: Equipped with YSF series fan motor, featuring compact size, light weight, reliable operation, sturdy structure, and low noise. The motor offers reliable performance and stable quality. The motor is an IP44 fully enclosed air-cooled type with Class B insulation.

★ Explosion-proof Axial Flow Fan Technical Parameters Selection Table:

Model RPM Airflow m3/h Total Pressure Pa Power kW - Motor Pole Number Voltage V

BT35-11-2.814501605600.18-4220/380

290032022320.25-2

BT35-11-3.1514502273740.25-4

290045453730.37-2

BT35-11-3.5514503265930.37-4

290065423730.75-2

BT35-11-4145046871190.55-4

290093364741.1-2

BT35-11-4.5145066581500.55-4

BT35-11-5145091331850.75-4

BT35-11-5.61450128122321.1-4380

96084711011.1-6

BT35-11-6.31450182502941.5-4

960120821281.1

1450195003202.2-4

BT35-11-7.11450261203733-4

960172961641.5-6

4KW

BT35-11-81450373704744-4

960247392082.2-6

BT35-11-9960352272633-6

BT35-11-10960483263214-6

BT35-11-11.2960678924077.5-6

★ BT35-11 Explosion-proof Axial Flow Fan Size Selection Chart

Outer Diameter ΦA, Inner Diameter Φ1, Mounting Hole Spacing Φ3, Wind Drum Length B, Mounting Holes

2.83232823082914-Φ7.5

3.153543173402914-Φ7.5

3.553983633823434-Φ7.5

44504124343454-Φ7.5

4.55024594813454-Φ7.5

55505125313754-Φ7.5

5.66085675864134-Φ7.5

6.36806376574854-Φ7.5

7.17607087354956-Φ7.5

88507958235006-Φ7.5

99649089366856-Φ7.5

101096102010586956-Φ7.5

11.21202114611746956-Φ7.5

Explosion-proof Axial Flow Fan

Our company develops and produces a series of fans and air-cooled equipment featuring low noise, energy-saving, and environmental protection. Our main products include: BWEX explosion-proof wall-mounted fans, BT35-11 explosion-proof axial flow fans, WEX wall-mounted fans, and T35-11 series axial flow fans. We have formed 38 series with over 2200 varieties and specifications, widely used in high-end civil buildings such as hotels, financial centers, and convention centers, as well as underground facilities like underground parking lots, subways, tunnels, civil defense projects, and industrial enterprises in sectors such as machinery, electronics, petrochemicals, textiles, food, papermaking, rubber, and metallurgy. Guided by the principle of honesty and continuous growth, we sincerely thank our friends and customers from all walks of life for their long-standing care and support. "Chengpin" fans continue to provide high-quality fire protection, ventilation, and refrigeration equipment to our customers, and together, we build ventilation projects.