Your Professional Diaphragm Pumps Supplier

 

Shanghai Tengsheng Pump Manufacturing Co., Ltd. is a cross-regional high-tech machinery and equipment manufacturing enterprise mainly engaged in the manufacturing and sales of pumps, fluid equipment, and pump control equipment. Fire pumps, multi-stage fire pumps, end-suction pumps, long-shaft fire pumps, diesel engine fire/emergency pump sets, pipeline pumps, TD circulating pumps, self-priming pumps, fire control cabinets, fire pressure stabilization equipment, portable diesel engine pumps, submersible sewage pumps, high-efficiency negative-pressure intelligent variable frequency water supply equipment, etc.

 
  • QBY Pneumatic Diaphragm Pump Supports OEM/ODM
    Product Features Air operated, no electricity needed Safe for flammable, explosive environments, no risk of electric leakage. Strong self-priming ability Can suck liquid without priming, easy to
  • Diaphragm Pump for High-viscosity Liquids
    Our Diaphragm Pump for High viscosity Liquids is a positive displacement pump designed specifically for the transportation of high viscosity media and solid slurry. With pneumatic/electric dual
  • Diaphragm Pump for Sewage Treatment
    The Diaphragm Pump for Sewage Treatment produced by Tengsheng in Shanghai is a positive displacement pump designed specifically for the transportation of complex media such as sewage, sludge, and
  • Diaphragm Pump for Chemical Transfer
    The Diaphragm Pump for Chemical Transfer produced by Tengsheng in Shanghai is a positive displacement pump designed specifically for transporting hazardous media such as strong corrosion,
  • 304 Stainless Steel Diaphragm Pumps
    The 304 Stainless Steel Diaphragm Pumps produced by Shanghai Tengsheng Company are volumetric pumps designed specifically for the high hygiene, pollution prevention, and low shear conveying needs of
  • Diaphragm Pump for Mining Slurry
    The mining mud diaphragm pump is a positive displacement pump designed specifically for the transportation of high concentration, high abrasion, and solid particle containing mud/slurry in mines. It
  • Diaphragm Pump for Coating Transfer
    The diaphragm pump for coating transportation produced by Shanghai Tengsheng is a positive displacement pump designed specifically for viscous, particle containing, and easily sedimentable media such
 
why choose us
 
 
 

Excellent Customer Service

We are committed to building long-term partnerships by providing reliable products, responsive service, and professional technical support. Together with our global partners, we strive to contribute to the advancement and sustainable development of the pump industry.

 
 

Quality & Reliability

Quality is at the core of everything we do. We operate under strict quality control procedures and use advanced testing systems to ensure every product delivers stable performance, safety, and long service life. From raw materials to final inspection, every production stage is carefully monitored to guarantee product reliability.

 
 

Innovation & Technology

Driven by continuous innovation, Tengsheng Pump invests in product development, manufacturing improvement, and intelligent control technology. Our experienced engineering team works closely with industry experts to optimize product performance and provide efficient solutions for customers worldwide.

 
 

Our Commitment

We are dedicated to building long-term partnerships through quality products, professional service, and customer-focused solutions. Tengsheng Pump looks forward to cooperating with global partners and creating sustainable value together.

 

 

Advantages of Diaphragm Pumps

 

No Leakage:

The sealed diaphragm actively prevents the leakage of the fluid, making the pumps best for toxic and hazardous substances.

01

Self Priming Capability:

Able to extract fluid from dry environments without the need for external priming.

02

Dry Running Tolerance:

Able to function normally even during short dry runs.

03

Versatile Fluid Handling:

Best for solvents, slurries, acids, and viscous liquids.

04

Low Maintenance:

Due to simple design, it is easy to service and minimising downtime.

05

 

Specifications

 

No.

Model

Rated Flow (m³/h)R

Rated Head (m)

1

QBY-10

0.8

50

2

QBY-15

1

50

3

QBY-25

2.4

50

4

QBY-32

6

50

5

QBY-40

8

50

6

QBY-50

12

50

7

QBY-65

16

50

8

QBY-80

24

50

9

QBY-100

30

50

 

Types of Diaphragm Pumps

 

Air-Operated Double Diaphragm (AODD) Pumps

These pumps run on compressed air. That makes them great for explosive or hazardous zones. They can self-prime. They can also run dry without damage. They are lightweight and easy to move. That’s why they’re popular for mobile jobs.

01

Electric Operated Double Diaphragm (EODD) Pumps

These pumps combine diaphragm design with electric control. They are energy-efficient. They offer precise flow control. They can also be automated for remote monitoring. That makes them ideal for modern setups.

02

Hydraulic Diaphragm Pumps

These are built for high-pressure work. They offer smooth, pulse-free flow. That makes them perfect for accurate dosing. You’ll often find them in chemical plants and heavy-duty applications.

03

Mechanical Diaphragm Pumps

These pumps are simple and affordable. They suit low-pressure jobs like water treatment. They are best for moderate-duty, routine tasks.

04

 

Components of Diaphragm Pumps

 

Diaphragm Pump For Sewage Treatment

 

Pump body

Exclusive to Mud Sucker diaphragm pumps is a suction and discharge area with a patented contoured velocity channel at the bottom of the casting. In general, the central body includes air inlet and outlet valves and a pneumatic exchanger to maintain pressure within the pump.

 

Fluid (valve) chambers

The fluid chambers hold the liquid being circulated through and out of the pump. They consist of the operator’s choice of flapper valve or ball valve technology to move the fluid.

 

Manifolds

Manifolds create a seal between the diaphragms and the pump chambers; in some cases, they contain check valves that prevent liquid from flowing backwards.

 

Air valve

The air valve pushes compressed air throughout the pump assembly, moving the diaphragms and expressing air into the atmosphere to create a vacuum inside the pump.

 

Diaphragms

The diaphragms act as a barrier, blocking flow through each fluid chamber in succession to maintain suction in the pump.

 

Air Chambers

The air chambers act as a pulsation dampener when the diaphragm pump is transferring thinner liquids like water. This reduces vibration and “hose kick” when the pump is in operation.

QBY Pneumatic Diaphragm Pump Supports OEM/ODM

 

Key Applications of Diaphragm Pumps
 

Chemical Processing

They move corrosive acids, solvents, and slurries without leaking.

Pharma and Biotech

They handle fluids safely in sterile environments.

Food and Beverage

They use hygienic materials. That ensures contamination-free transfer of liquids.

Water and Wastewater Treatment

They dose chemicals precisely. They can also move sludge easily.

Paints, Inks, and Coatings

They can handle thick and abrasive liquids without clogging.

Mining and Construction

They are strong enough to transfer slurry and handle dewatering.

 

FAQ

 

Q: How does a centrifugal pump work?

A: Centrifugal pumps work on the principle of centrifugal force. The impeller rotates, accelerating the fluid outward, which increases its velocity and pressure, allowing it to flow through the discharge outlet.

Q: What industries commonly use centrifugal pump?

A: Centrifugal pump are widely used in water treatment, chemical processing, oil & gas, agriculture, HVAC systems, and pharmaceutical industries.

Q: What are the main components of a centrifugal pump?

A: The key components include an impeller, pump casing, shaft, bearings, seal or packing, and suction/discharge nozzles.

Q: Why are centrifugal pump popular in industries?

A: They are simple in design, energy-efficient, cost-effective, and ideal for moving large volumes of fluid with minimal maintenance.

Q: What are the different types of centrifugal pump?

A: The main types include single-stage, multi-stage, end-suction, vertical inline, and self-priming centrifugal pump.

Q: How can I increase the life of a centrifugal pump?

A: Regular maintenance, seal checks, impeller inspection, filter cleaning, and using genuine spare parts can significantly extend the pump’s life.

We're well-known as one of the leading diaphragm pumps manufacturers and suppliers in China. We warmly welcome you to buy customized diaphragm pumps at competitive price from our factory. If you have any enquiry about cooperation, please feel free to email us.

304 Stainless Steel Diaphragm Pumps, Diaphragm Pump For Mining Slurry, diaphragm pump
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