Changsha Zhonglian Pump Industry Co., Ltd.

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Having 26 series -312 varieties - over 1000 pump models

Focused on water pump research and development manufacturing for 36 years

Free training for operation and maintenance personnel/free installation guidance/free provision of installation drawings

Self-balancing multistage pump

Multistage pump

Coal Mine Safety Certified Multi-stage Pump

Vertical multistage pump

Integrated pump station

Vacuum pump

Fire pump

Constant-pressure water supply equipment

Other pumps

Genuine accessories

Wilton Mining Pneumatic Diaphragm Pump

Maximum flow rate: 50 m³/h

Maximum head: 60m

Maximum pressure: 8.6 bar

Particle diameter: 3.2–25.4 mm

Dry suction height: 6.1–8.3 m

Pump weight: 8.6–49.8 kg

Price: 5,000–14,000

The pneumatic diaphragm pump for coal mines developed by Wilton is a pneumatically driven diaphragm pump specifically designed for the Chinese market. It has obtained ATEX safety certification as well as relevant safety certificates for mining products, and represents the culmination of Wilton’s decades of manufacturing and application experience. The Wilton BQG series of pneumatic diaphragm pumps for coal mines not only deliver higher reliability and performance but also embody world-leading technology.

Hotline:

+86 0731-88632200

classification：

Other pumps

keyword：

Horizontal Single-Stage Fire Pump

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Product overview Product parameters Why choose us? Frequently Asked Questions

Product Overview

The Wilton pneumatic diaphragm pump for coal mines is a pneumatically driven diaphragm pump specifically developed for the Chinese market. It has obtained ATEX safety certification as well as relevant safety certificates for mining products, and represents the culmination of Wilton’s decades of manufacturing and application experience. The Wilton BQG series of pneumatic diaphragm pumps for coal mines not only deliver enhanced reliability and performance but also exemplify the standards of a world-leading manufacturer of pneumatic diaphragm pumps.

Meaning of Wilton Mining Pneumatic Diaphragm Pump Model Designations

Example: BQG70/0.2

B - Mining pump

Q-Pneumatic

G-diaphragm

70 - Flow rate (L/min)

0.2 - Discharge pressure

Application Fields of Wilton Pneumatic Diaphragm Pumps for Mining

At mining sites, wastewater from slurry pumping, drainage around mining faces, trenches, and various types of equipment, discharge of mixed water from excavation sites, removal of diluted slurry from water reservoirs, and drainage of mixed water in high-gas mines and tunneling roadways—especially in applications involving white spraying in mine tunnels—compared to traditionally used electric grouting pumps, the BQG mine-use pneumatic diaphragm pump is compact and lightweight, with flow rates and head capabilities better suited to meet the demands of grouting applications.

Advantages of the Wilton Pneumatic Diaphragm Pump for Mining Applications

1. Powered by air, suitable for fluids with medium to high viscosity;

2. Pneumatic diaphragm pumps can handle particles and are suitable for harsh operating conditions.

3. It can run dry with minimal shear force on the medium;

4. For use in flammable and explosive environments

· No arcing will occur after grounding;

· No heat is generated during operation;

· The fluid does not generate heat;

5. The diaphragm pump is compact and easy to move;

6. For conveying fluids with unstable chemical properties

Product Parameters

Performance Parameters of Wilton Pneumatic Diaphragm Pump for Mining Applications

Model	Inlet and outlet pipe diameter	Suction lift height Dry	Suction lift height Wet	Maximum flow TPE/rubber	Maximum solid size	Maximum working pressure	Net quantity (estimated)
BQG-100/0.2	Import: 25 mm (1″) Outlet: 19 mm (3/4″) BSPT	6.4 m (21.0′)	9.0 m (29.5′)	156 lpm (40.2 gpm)	3.2 mm (1/8″)	8.6 bar (125 psi)	8.5 kg (19 lbs)
BQG-190/0.2	Import: 38 mm (1-1/2″) Outlet: 32 mm (1-1/4″) BSPT	7.0 m (22.9′)	9.0 m (29.5′)	272 lpm (71.8 gpm)	4.8 mm (3/16″)	8.6 bar (125 psi)	15 kg (33 lbs)
BQG-370/0.2	51 mm (2″) BSPT	6.6 m (21.8′)	9.0 m (29.5′)	610 lpm (161.3 gpm)	6.4 mm (1/4″)	8.6 bar (125 psi)	27 kg (60 lbs)
BQG-600/0.2	76 mm (3″) BSPT	6.1 m (19.9′)	9.0 m (29.5′)	907 lpm (240 gpm)	10 mm (25/64″)	8.6 bar (125 psi)	46 kg (116 lbs)

Performance Curve Diagram of the Wilton Pneumatic Diaphragm Pump for Mining Applications

Installation Precautions for Wilton Pneumatic Diaphragm Pumps for Mining Applications

The diameter of the suction pipe for a pneumatic diaphragm pump must not be smaller than the diameter of the pump’s inlet port. When conveying high-viscosity fluids, it is best to use a suction pipe with a diameter larger than the pump’s inlet port. The suction piping at the inlet end must be durable and free of wrinkles in order to generate a high-vacuum condition. The diameter of the discharge piping should be at least equal to, or slightly larger than, the pump’s outlet diameter to minimize friction losses. All piping and fittings must be completely leak-proof; otherwise, the pump’s self-priming capability will be compromised.

◆ Installation: If installation details are overlooked, even careful planning, research, and selection over a long period may still lead to poor pumping performance and shorten the pump’s service life.

◆ Location: Noise levels, safety considerations, and other logical factors typically impose requirements on the ideal location for equipment installation. Parallel installations with conflicting requirements may lead to congestion in the usage area and affect the installation of other pumps.

◆ Usage: First, the pneumatic diaphragm pump must be positioned in a location that is convenient for use, making it easier for maintenance personnel to perform daily inspections and adjustments.

◆ Air Supply: Each pneumatic diaphragm pump should be equipped with an air supply line capable of delivering an air volume sufficient to achieve the desired pumping flow rate. The air pressure should be adjusted according to different pumping requirements, but it must not exceed 7 BAR.

◆ Installation height: Please take full account of the pneumatic diaphragm pump’s self-priming capability to avoid any reduction in self-priming performance.

◆ Piping: The pump location should not be finalized until every potential piping issue has been thoroughly considered.

◆ The optimal installation location should be at the point where the inlet and outlet pipelines are shortest and straightest. Extra bends and pipe fittings should be avoided as much as possible. The pump body should be able to support all pipelines independently. Moreover, the pipelines should be arranged in an orderly manner to prevent stress from being imposed on the pump’s pipeline connections. Flexible hoses can be installed to absorb the stress caused by the pump’s natural reciprocating motion. If the pump body is to be connected to a fixed base, installing cushioning pads between the pump body and the base will help reduce pump vibrations.

Installation Diagram for the Wilton Pneumatic Diaphragm Pump for Mining Applications

Why choose us?

Changsha Zhonghlian Pump Industry Co., Ltd. was founded in 1989 and was independently established after the restructuring of Changsha Water Pump Factory. It is a comprehensive national high-tech enterprise integrating design, research and development, manufacturing, and service. The company was listed on the Hunan Provincial Equity Exchange on December 31, 2019, with the abbreviation "Zhonghlian Pump Industry" and the equity code: 600275HN. It is currently a key backbone enterprise in China's centrifugal pump industry and one of the major professional manufacturers of multi-stage pumps in the country. The headquarters is located in Changsha City, Hunan Province, a historical and cultural city in China.

41000 m²

Square meters of land area

100 %

100% factory pass rate

41000 m²

Square meters of land area

100 %

100% factory pass rate

What is your typical delivery time?

Models in stock can be shipped the next day at the latest. All others are custom-made, with lead times generally ranging from 7 to 90 days depending on the product size and project specifics. Please contact our sales manager for details: 0731-88632200 。

Do you have centrifugal pumps in stock?

Centrifugal pumps come in numerous models and configurations. Except for a small number of high-volume, standard models that are in stock, the vast majority are not stocked and are customized products. We need to select a pump based on your site's flow rate, head, media temperature, pH value, and installation conditions, etc., to determine the pump model and configuration before we can submit an order to the factory for production.

What information should I provide when requesting a quote?

Generally, to obtain an accurate quotation, we recommend providing us with the following information: pump flow rate, head, on-site operating voltage and frequency, temperature, pH value, and solid particle content of the fluid being conveyed, and on-site installation conditions (horizontal or vertical installation), etc.

If you are not sure, don't worry, our business managers will assist you in determining this.

What products do you mainly produce?

Zhonglian Pump Industry manufactures various large industrial centrifugal pumps. Main products include: self-balancing multi-stage pumps, multi-stage centrifugal pumps, single-stage centrifugal pumps, split-case pumps, chemical pumps, submersible pumps, pipeline pumps, long-shaft pumps, condensate pumps, etc.

Could you help me with the selection?

Certainly! If the water pump model is not selected accurately, there will be big problems. If you choose a smaller one, it won't meet your needs; if you choose a larger one, it will waste electricity and fuel, increasing your costs.

Why is it so slow to get a price quote?

Because centrifugal pumps are non-standard customized products with many models, the price range is also very large. Even for the same model, the price difference is also very large due to different materials and configurations. Taking the most common water pump accessory—the impeller—as an example, the price of a stainless steel impeller is several times that of a cast iron impeller. Therefore, we need to clarify the relevant information to give you an accurate price. Normally, if you provide relatively comprehensive information, we can quote within 5 minutes.

+86 0731-88632200

Export Trade/Technical Support:

+86 153-4831-2290

Head Office Email:

zoomlian@yeah.net

No. 210, Huanbao Zhong Road, Yuhua District, Changsha City, Hunan Province, Leowoju Wisdom Valley Building B, 8th Floor

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Self-balancing multistage pump

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