Shanghai, China
Business Type:
Manufacturer/Factory & Trading Company
Main Products:
Number of Employees:
Management System Certification:
ISO 9001
Terms of Payment:
Average Lead Time:
Peak season lead time: 1-3 months
Off season lead time: one month
OEM/ODM Service

Air Pump, Diaphragm Pump, Displacement Pump manufacturer / supplier in China, offering RD 25 Best Price Liquid Pump, RD 10 Aluminum Diaphragm Pump, Rd 3 Inch Aluminum Pump with Santoprene Diaphragm Air Pump and so on.

Diamond Member Since 2009
Audited Supplier

RD 25 Best Price Liquid Pump

Min. Order / Reference FOB Price
50 Pieces US $100-1,000/ Piece
Port: Shanghai, China
Production Capacity: 5000PCS/Month
Payment Terms: L/C, T/T, Western Union
Material: Aluminum Alloy
Power: Pneumatic
Valve Body Type: Diaphragm
Function: Transfer Fluid
Product Name: Rd25 Aluminum Alloy Diaphragm Pump
Size: 1"Inch

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Basic Info.

Model NO.
RD 25
Transport Package
Carton Box
HS Code
RD 25 Best Price Liquid Pump

1.      Material (take Aluminum alloy for instance): Inner and outer layers of Aluminum alloy has been special treated.
       Advantages: beautiful appearance, smooth, abrasion, corrosion resistance, 10 times stronger than pure Aluminum.
2.      Upper manifold with 3 inlet and outlet in the middle and both side.
       Advantages:After middle inlet & outlet blocked, one pump can be divided into two, greatly decrease cost.
3.      Ball room: circular arc shape, smooth surface.
       Advantages: Smooth arc-shaped room, not easy to abrase ball seat, protect ball seat, increase working life.
4.      Cover: smooth arc, less blind corner, more coincide with principle of hydromechanics.
       Advantages: more reasonable design, enlarge diaphragm's working life, raise flow and head at the same working conditions.
5.      Diaphragm:  available with variety material, more flexible, not easy deformed, automatic return to original position.
       Advantages: diaphragm's design are more flexible, increase working life, more than at least 5 times movement compared with regular diaphragm.
6.      Clapboard: arc-shaped design, have the same shape with diaphragm, completely match diaphragm, and protect diaphragm; with additional6 air-guide hole, more coincide with principle of aerobiology and hydromechanics, increase diaphragm working life.
       Advantages: Protect diaphragm, Enlarge working life.
7.      Central Axis: By hardening treatment on the axis, only have 2 V-ring sealed, can interchange V-ring with air motor. only 2pcs V-ring is ok to install into hardening treated axis, these V-ring also interchange with air motor's V-ring
       Advantages: Easily disconnect and reassemble , not easy to damage, V-ring cyclic utilization, save the cost of maintenance.
Pump Axis is smooth round, not easily damaged, have long working life.
8.      Central body: If it breakdown, replace two gasket V-ring it ok.
       Advantages: Easily repairing, save maintenance cost.
9.      Air motor: pilot type, move vertically and horizontally, after a long time abrasion, there can be automatic compensation. 
Easy-wear part adopt special unitary polymer, hardness and flexibility are better than metal, easily to start operate at 0.5kg air pressure
       Advantages: never stop operating, less spare part, lubricate automatically, no need lubricant, working in terrible environment
10.  Ball seat: both sides can be well used.
      Advantages: use repeatedly and save cost.
11.  Low noise
      Advantages:improve work environment.
12.  Center body sealed gasket: can be used repeatedly, convenient dismantlement and installment.
       Advantages:Convenient maintenance.
13.  Jianglang pneumatic diaphragm pump realize long working life, strong and durable, cost-effective. Air motor 15 years warranty, Pump body 5 years
14.  Pioneered the highest head record of diaphragm pump history: The highest head can be up to more than 20m.
15.  Pioneer for Full PTFE pump. ( Special pump for nuclear power station)
Max working pressure100psi (0.7Mpa,7bar)
Max flow rate40gpm (150lpm)
Max reciprocating speed276cpm
Max suction height5.48m
Max permitted grain4mm
Max air consumption45 scfm(22.5L/s)
Air inlet size1/2 in.npt
Air outlet size1/2 in.npt
Fliud inlet size1 in.npt
Fliud outlet size1 in.npt
WeightAluminum pump 8.2kg;  Stainless steel pump 15kg
Packaging & Shipping
 RD 25 Best Price Liquid Pump
RD 25 Best Price Liquid Pump

Our Services
* All of the enquiry will be replied within 24 working hours
* Professional pump producer, with design team.
* All of the goods are packed with standard export wooden case (non-fumigation)
* Fast after-service
Company Information
Shanghai Jianglang Fluid Machine Manufacturing Co., Ltd is a professional manufacturer of air operated diaphragm pump, with over 20-year manufacturing experience in this field. The company has two production bases, three branch offices, and approx. 120 employees in total, among which there are more than 30 engineers.
 Our pumps have achieved more than 30 patents, CE, ISO9001, SGS certificates. Thanks to the reliable quality, we have won big appraise from our clients all these years.
 The air operated diaphragm pumps manufactured by Jianglang use compressed air as power source, and it is the most advanced type of diaphragm pumps in market for the moment. It adopts three-way air pilot valve to achieve real no dead stop and faster reversing. Compared with other traditional domestic pumps, it has larger flow rate, more stable operation, and smaller pulsation. It is widely applied in waste water treatment, chemical industry, petrochemical industry, painting, ceramics, environmental protection, printing and dyeing, etc. to deal with all kinds of corrosive, volatile, flammable, poisonous fluids with particles and high viscosity.
 We have the following materials available, and our engineers will select the most suitable and economical material for you according to your specific working conditions.
Wetted parts material: PP, PVDF, Acetal , Aluminum alloy, Ductile iron, stainless steel, etc. Diaphragm material: Teflon, Santoprene, Viton, Hytrel, Buna-N, etc.
 Available inlet/outlet size: 1/4", 3/8", 1/2", 3/4", 1", 1-1/2", 2", 3"
Connection type:
-Threaded connection: Plastic pumps from 1/4" to 1-1/2", and all metal pumps.
-Fanged connection: Plastic pumps from 1/2" to 3".
Exhibtion of River-Wave pump:
RD 25 Best Price Liquid Pump 

1. Q: What is MOQ?
     A: 1pc for regular product. Samples are available and sample cost can be deducted from future orders.
2. Q: What's the payment?
    A: D/P, T/T, Western Union , please confirm with us with exact order.
3. Q: What is the delivery time?
    A: Depend on the quantity.
4. Q: What about package?
    A: Cartons with foam inside & wooden case.
5. Q: How are the products delivered to us?
    A: By International express.
6. Q: How long is the warranty?
A:  1 year warranty. (except wearing parts)
7. Q: Whether the products can be made of different standard?
    A: Of course yes. We could produce product according to custom need.

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