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DN15-DN80 Cast Iron Pneumatic Diaphragm Pump QBQ

Model NO. PWSQBQ

Flow Range：0.5-60 m³/h
Head Range：0-70 m
Inlet/Outlet Range：DN15-DN80
Product Features: Flange connection

Quantity

The PWS Pneumatic Diaphragm Pump is a leak-free positive displacement pump powered by compressed air, designed to safely handle hazardous, corrosive, or flammable media such as crude oil, gasoline, methane-contaminated wastewater, and chemical slurries. As a diaphragm water pump, it achieves 5-meter self-priming without electrical components, making it ideal for explosive environments and complex industrial applications like underground coal mine drainage or refinery waste recovery.

Key Features of the Diaphragm Water Pump

Dual Diaphragm Isolation

PTFE/Nitrile diaphragms completely isolate the medium from the air system, eliminating leakage risks for toxic chemicals (e.g., toluene, xylene).

Dry-Run Protection

Automatically stops when fluid supply is interrupted, preventing diaphragm damage.

Self-Priming Capability

Draws liquid from depths up to 5 meters without priming, suitable for underground tanks or long pipelines.

Solid Handling

Transfers slurries with suspended particles (e.g., coal mine wastewater with coal dust).

How Does a Diaphragm Pump Work?

Air-Driven Motion
- Discharge Phase: Air pressure compresses one diaphragm, forcing fluid out through the discharge valve.
- Suction Phase: The opposing diaphragm retracts, creating a vacuum to draw in new fluid.
Valve Coordination

One-way ball valves ensure unidirectional flow, maintaining a continuous suction-discharge cycle.

Adjustable Flow

Control flow rate by regulating air pressure , adapting to variable process demands.

Applications of the Pneumatic Diaphragm Pump

Oil & Gas

Safe transfer of crude oil, diesel, and refinery waste liquids (solvent oil, toluene).

Mining & Underground

Drainage of coal slurry and methane-contaminated wastewater.

Nuclear & Natural Gas

Coolant circulation and condensate transfer in natural gas fields.

Emergency Scenarios

As a diaphragm water pump for flood control or sewage backup clearance.

Service & Support

Accurate demand matching

Free on-site demand analysis, customized flow, pressure and piping configuration scheme;

Rapid delivery response

Standardized module design, delivery cycle shortened by 30%, emergency project support expedited processing;

Flexible warranty policy

1 year warranty for the whole machine, 2 years extended warranty for non-standard customized parts, regular maintenance and fault fast response service.

PWS’s Pneumatic Diaphragm Pump lineup redefines fluid transfer efficiency with innovative design and robust performance, leveraging compressed air to deliver reliable, leak-proof operation across diverse industrial applications. From handling corrosive chemicals to abrasive slurries, these pumps excel in environments where traditional designs fall short. A standout offering, the Diaphragm water pump variant, specializes in clean water and low-viscosity liquid handling while maintaining the core advantages of diaphragm isolation—ensuring zero contamination and minimal maintenance. This technical overview highlights key parameters such as flow rates, pressure capabilities,etc, empowering users to tailor PWS’s Pneumatic Diaphragm Pump solutions to their unique process demands, whether for rugged industrial tasks or precision-sensitive operations.

PWS’s Pneumatic Diaphragm Pump combines advanced materials with precision engineering to deliver unmatched durability and chemical resistance, tailored for aggressive media and demanding industrial environments. From corrosive fluids to abrasive mixtures, every component is optimized for longevity and safety. For clean water or hygienic applications, the Diaphragm water pump variant employs non-toxic, corrosion-resistant materials to eliminate contamination risks. This material-driven design ensures PWS’s pumps meet rigorous industry standards for reliability, safety, and adaptability.

Proper installation is critical to unlocking the full potential of PWS’s Pneumatic Diaphragm Pump, ensuring seamless performance across applications ranging from corrosive chemical transfer to abrasive slurry handling. Designed for user-friendly setup, our pumps combine robust construction with intuitive design, minimizing downtime and maintenance risks. For applications prioritizing fluid purity, such as clean water or food-grade media, the Diaphragm water pump variant simplifies installation with leak-proof components and hygienic materials, meeting stringent industry standards. This guide provides step-by-step insights to help operators achieve optimal performance, safety, and longevity from PWS’s Pneumatic Diaphragm Pump solutions.

PWS’s Pneumatic Diaphragm Pump performance curves serve as a critical tool for optimizing system design, illustrating the pump’s operational efficiency across varying flow rates, pressure differentials, and air consumption dynamics. By interpreting these curves, users can align PWS’s Pneumatic Diaphragm Pump capabilities with process requirements, ensuring reliable, energy-efficient operation in industries ranging from chemical processing to environmental engineering.

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Contact PUMP WISE

We Usually Respond Within 24 Hours Between Monday-Friday

WENZHOU PUMP WISE FLUID EQUIPMENT CO.,LTD

Self Priming Pump

Sewage Pump

Diesel Pump

Sales Manager：+39 389 949 9067

Sales Representative：+39 344 7395079
salesmanager Whatsapp：+86 19518108981

winnie@pumppioneer.com

NO. 8, NORTH ROAD, PUMP AND VALVE INDUSTRIAL ZONE, DONGOU HETIAN INDUSTRIAL ZONE

Motor & Electronic Control

IBAN: LU814080000047209734

Account Holder Name: PUMP WISE FLUID EQUIPMENT CO., LTD

Currency of Receipt: EUR GBP PLN

Bank Name: Banking Circle S.A.

Bank Location: Luxembourg

Bank Address: 2 Boulevard de la Foire L-1528 Luxembourg Luxembourg

Account Type: checking

Swift Code: BCIRLULL (BCIRLULLXXX, if 11 characters are required)