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- Supplier: Guangzhou Aomei Machinery Equipment Co. Ltd.
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Our Advantages
Warren Rupp SANDPIPER pump repair parts are suitable for AODD pumps in all sectors, including paint, metal, paper, food processing, chemical industries and many more. A selection of items can be viewed on our website, along with the SANDPIPER repair parts pump, but we also offer more stock offline. If you cannot find the part or replacement parts that you are looking for, please give our expert team a call today and we would be happy to help you.
We aim to supply all necessary replacement parts to keep your pump up and running efficiently and can offer a complete range from manifolds, liquid chambers, air valves and air kits, to hardware and diaphragms. Our kits, such as the Warren Rupp SANDPIPER pump repair parts, have been designed to withstand the tough rigours of an industrial environment and only consist of the highest quality materials.
If your pump is in need of replacement parts, it is recommend that this is done at the earliest opportunity. This will prevent further wear and tear, that could eventually lead to replacement of the entire pump. To enquire about a SANDPIPER repair parts pump, or other replacement part, please contact us today.
We aim to supply all necessary replacement parts to keep your pump up and running efficiently and can offer a complete range from manifolds, liquid chambers, air valves and air kits, to hardware and diaphragms. Our kits, such as the Warren Rupp SANDPIPER pump repair parts, have been designed to withstand the tough rigours of an industrial environment and only consist of the highest quality materials.
If your pump is in need of replacement parts, it is recommend that this is done at the earliest opportunity. This will prevent further wear and tear, that could eventually lead to replacement of the entire pump. To enquire about a SANDPIPER repair parts pump, or other replacement part, please contact us today.
Diaphragms on Air Operated Double Diaphragm Pumps
A double diaphragm pump is also called a positive displacement pump which utilizes two flexible diaphragms, connected by a shaft, which move back and forth. The diaphragms work as separation of the air one side and the medium on the opposite side of the diaphragm.
The diaphragms, in most common AODD pump designs, maintain a seal at two points:
At the center diaphragm hole by tightening the inner and outer diaphragm plates to the main shaft, capturing the diaphragm. When properly torqued, a leak-free seal is created. Torque may vary per brand.
A seal also occurs at the outer circumference of the diaphragms, usually at the molded-in sealing bead or from sealing grooves on the inner air chamber and/or outer fluid chamber. The seal occurs from the compression created when the outer chamber bolts (bolted pumps) or the large clamp band assemblies (clamp style pumps) are tightened.
Diaphragms Maintenance is key
As part of a general maintenance program, diaphragms should be replaced regularly, according to the manufacturer’s recommendations. The efficiency, lifetime and stability of a diaphragm in an AODD pump is dependent on its compressed air supply. The compressed air supply must be at the same or a higher pressure than the fluid to be pumped, with a maximum of 0.3bar (4.35PSI) in difference. This tends to limit the use of AODD pumps to only low pressure applications.
Diaphragm pumps will move nearly any kind of fluid in multiple industries like:
A double diaphragm pump is also called a positive displacement pump which utilizes two flexible diaphragms, connected by a shaft, which move back and forth. The diaphragms work as separation of the air one side and the medium on the opposite side of the diaphragm.
The diaphragms, in most common AODD pump designs, maintain a seal at two points:
At the center diaphragm hole by tightening the inner and outer diaphragm plates to the main shaft, capturing the diaphragm. When properly torqued, a leak-free seal is created. Torque may vary per brand.
A seal also occurs at the outer circumference of the diaphragms, usually at the molded-in sealing bead or from sealing grooves on the inner air chamber and/or outer fluid chamber. The seal occurs from the compression created when the outer chamber bolts (bolted pumps) or the large clamp band assemblies (clamp style pumps) are tightened.
Diaphragms Maintenance is key
As part of a general maintenance program, diaphragms should be replaced regularly, according to the manufacturer’s recommendations. The efficiency, lifetime and stability of a diaphragm in an AODD pump is dependent on its compressed air supply. The compressed air supply must be at the same or a higher pressure than the fluid to be pumped, with a maximum of 0.3bar (4.35PSI) in difference. This tends to limit the use of AODD pumps to only low pressure applications.
Diaphragm pumps will move nearly any kind of fluid in multiple industries like:
Aerospace
Automotive
Constructions
Ceramics
Chemical
Coating & Glue
Semi-Conductor
Cosmetics
Energy
Environmental
Food & Beverage
Transportation
Mining
Oil & Gas
Packaging
Pharmaceutical
Printing & Painting
Pulp & Paper
Sanitary Steel & Metal
Every industry or solution has it own selection requirements if it comes to diaphragm material. They come in a variety of materials (availability may vary per manufacturer) and designs to meet specific application needs such as chemical compatibility, temperature, abrasion resistance, and certification requirements.
Most common used materials supplied by our side:
Neoprene:
An excellent general purpose diaphragm for use in non-aggressive applications such as water-based slurries, well water or sea water. Exhibits excellent flex life and low cost.
Buna-N/Nitrile:
Excellent for applications involving petroleum/oil-based fluids such as leaded gasolines, fuel oils, non-synthetic hydraulic oils, kerosene, turpentines and motor oils.
EPDM/Nordel:
Excellent for use in applications requiring extremely cold temperatures. May also be used as a low cost alternative when pumping dilute acids or caustics
FKM/Viton:
Excellent for use in applications requiring extremely hot temperatures. May also be used with aggressive fluids such as aromatic or chlorinated hydrocarbons and highly aggressive acids. PTFE would normally be used with these aggressive fluids as its flex life is better than Viton®. However, in applications involving suction lift outside the range of PTFE, Viton® will be the preferred choice for highly aggressive fluids
Polyurethane:
An excellent general purpose diaphragm for use in non-aggressive applications. This material exhibits exceptional flex life and durability. Wilden’s least expensive diaphragm
Santoprene:
Excellent choice as a low cost alternative to PTFE in many acidic and caustic applications such as sodium hydroxide, sulfuric or hydrochloric acids. Exhibits excellent abrasion resistance and durability at a cost comparable to neoprene
Hytrel:
Exhibits excellent abrasion resistance, flex life and durability. This material is FDA approved for food processing applications. An outstanding general purpose diaphragm as well.
Geolast:
Excellent choice for applications requiring high oil resistance that meets or exceeds that of nitrile (Buna-N). This material exhibits exceptional performance for a variety of fluids
PTFE/TFM:
Excellent choice when pumping highly aggressive fluids such as aromatic or chlorinated hydrocarbons, acids, caustics, ketones and acetates. Exhibits good flex life compared to a standard rubber diaphragm
Automotive
Constructions
Ceramics
Chemical
Coating & Glue
Semi-Conductor
Cosmetics
Energy
Environmental
Food & Beverage
Transportation
Mining
Oil & Gas
Packaging
Pharmaceutical
Printing & Painting
Pulp & Paper
Sanitary Steel & Metal
Every industry or solution has it own selection requirements if it comes to diaphragm material. They come in a variety of materials (availability may vary per manufacturer) and designs to meet specific application needs such as chemical compatibility, temperature, abrasion resistance, and certification requirements.
Most common used materials supplied by our side:
Neoprene:
An excellent general purpose diaphragm for use in non-aggressive applications such as water-based slurries, well water or sea water. Exhibits excellent flex life and low cost.
Buna-N/Nitrile:
Excellent for applications involving petroleum/oil-based fluids such as leaded gasolines, fuel oils, non-synthetic hydraulic oils, kerosene, turpentines and motor oils.
EPDM/Nordel:
Excellent for use in applications requiring extremely cold temperatures. May also be used as a low cost alternative when pumping dilute acids or caustics
FKM/Viton:
Excellent for use in applications requiring extremely hot temperatures. May also be used with aggressive fluids such as aromatic or chlorinated hydrocarbons and highly aggressive acids. PTFE would normally be used with these aggressive fluids as its flex life is better than Viton®. However, in applications involving suction lift outside the range of PTFE, Viton® will be the preferred choice for highly aggressive fluids
Polyurethane:
An excellent general purpose diaphragm for use in non-aggressive applications. This material exhibits exceptional flex life and durability. Wilden’s least expensive diaphragm
Santoprene:
Excellent choice as a low cost alternative to PTFE in many acidic and caustic applications such as sodium hydroxide, sulfuric or hydrochloric acids. Exhibits excellent abrasion resistance and durability at a cost comparable to neoprene
Hytrel:
Exhibits excellent abrasion resistance, flex life and durability. This material is FDA approved for food processing applications. An outstanding general purpose diaphragm as well.
Geolast:
Excellent choice for applications requiring high oil resistance that meets or exceeds that of nitrile (Buna-N). This material exhibits exceptional performance for a variety of fluids
PTFE/TFM:
Excellent choice when pumping highly aggressive fluids such as aromatic or chlorinated hydrocarbons, acids, caustics, ketones and acetates. Exhibits good flex life compared to a standard rubber diaphragm
Company Profile
Guangzhou Aomei Machinery Equipment Co., Ltd. is a professional company specializing in fluid industry product supply and system technology services. Most of the commonly used models are available from stock, and delivery is fast and convenient. At the same time, we provide the selection, quotation, consulting and after-sales maintenance services of imported pumps all year round. Trust us, you can make your purchase easier and safer. Since 2010,Our existing customers are involved in petroleum, chemical, electroplating, water treatment, paper making, electronic circuits, food and beverage, cosmetics, batteries and other industries. Our high-quality product and mature after-sales service are recognized by most customers.
The main professiona agent：
The main professiona agent：
Imported pneumatic diaphragm pumps : Sandpiper, Ovell, ARO, Wilden, Versa-Matic, VERDER, GRACO,MARATHON
Dosing pumps:NIKKISO, EIKO, PULSAFEEDER, MiltonRoy brand and other metering pump.
Barrel pumps: STANDARD
Dosing pumps:NIKKISO, EIKO, PULSAFEEDER, MiltonRoy brand and other metering pump.
Barrel pumps: STANDARD
FAQ
Q1: What is your business range?
A: We are professional agents, sales agents of various brands of metering pump, pneumatic diaphragm pump, barrel pump. We are professional in the field of fluid metering and transmission and can provide customers with fluid transmission and metering system solutions.
Q2: What is your MOQ?
A: One unit.
Q3: What're your payment terms?
A: We can accept pay via T/T bank charge, PayPal, Western Union, Credit Assurance. If you need other terms, we can have a discuss.
Q4: Why choose us?
1. We have more than 10 years' experience in the transfer fluid industry. Main Products Pneumatic diaphragm pumps, Metering Pumps,
Portable pumps.
2. High quality products good service and competitive price.
3. We have professional business personnel and engineers to provide you with type selection assistance and technical support.
A: We are professional agents, sales agents of various brands of metering pump, pneumatic diaphragm pump, barrel pump. We are professional in the field of fluid metering and transmission and can provide customers with fluid transmission and metering system solutions.
Q2: What is your MOQ?
A: One unit.
Q3: What're your payment terms?
A: We can accept pay via T/T bank charge, PayPal, Western Union, Credit Assurance. If you need other terms, we can have a discuss.
Q4: Why choose us?
1. We have more than 10 years' experience in the transfer fluid industry. Main Products Pneumatic diaphragm pumps, Metering Pumps,
Portable pumps.
2. High quality products good service and competitive price.
3. We have professional business personnel and engineers to provide you with type selection assistance and technical support.
Welcome contact us for more information, we have the brand like: WILDEN ,OVELL,SANDPIPER,VERSAMATIC,MARATHON,ARO,HUSKY and So on.
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