Menda PFA Replacement Stems for Stainless Steel Dispensing Pumps, 2.08" – 10 Pack (35772)
Maintain your Menda liquid dispensing equipment with these chemically resistant PFA replacement stems. Designed for use with Menda 35770 and 35771 stainless steel dispensing pumps, these replacement tubes provide a convenient way to service compatible dispensers without replacing the complete pump assembly.
Manufactured from perfluoroalkoxy (PFA), a high-performance fluoropolymer, these stems offer excellent resistance to a wide range of industrial chemicals, including many acids, bases, and solvents. Their chemical-resistant construction makes them particularly useful in demanding liquid dispensing applications where conventional plastic tubing may not provide adequate compatibility.
PFA also features a smooth, low-friction, nonstick surface that helps liquids move through the stem with minimal resistance. These properties are beneficial for applications requiring dependable chemical transfer and reduced material interaction.
Each replacement stem measures 2.08 inches long and has an inside diameter of 0.16 inch, with a tolerance of ± 0.005 inch. The dimensions are designed for the specified Menda pump assemblies, allowing customers to maintain the intended configuration of their dispensing equipment.
Supplied in a convenient pack of 10, these stems are ideal for maintenance departments, laboratories, electronics manufacturing facilities, and industrial workstations that regularly service compatible Menda dispensers.
Made in the United States, these genuine Menda replacement components provide a practical solution for maintaining chemically resistant liquid dispensing systems.
Package includes 10 PFA replacement stems. Pumps, bottles, and other dispensing components are not included.
Features & Benefits
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Pack of 10: Provides multiple replacement stems for routine maintenance and service.
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PFA Construction: Manufactured from chemically resistant perfluoroalkoxy fluoropolymer.
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Excellent Chemical Resistance: Suitable for use with many industrial solvents, acids, and bases.
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Compatible with Menda 35770: Designed for the specified stainless steel dispensing pump.
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Compatible with Menda 35771: Fits the specified stainless steel dispensing pump.
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2.08" Stem Length: Manufacturer-specified replacement length.
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0.16" Inside Diameter: Provides the specified internal passage for compatible pump assemblies.
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Precision Diameter Tolerance: Inside diameter tolerance of ± 0.005".
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Low-Friction Surface: Helps liquids flow through the stem with minimal resistance.
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Nonstick Properties: Reduces interaction between compatible fluids and the stem surface.
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Replacement Component: Allows servicing of compatible pumps without purchasing a complete dispenser.
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Convenient Maintenance Supply: Useful for facilities operating multiple liquid dispensing stations.
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Professional Chemical Dispensing: Designed for demanding laboratory and industrial applications.
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Genuine Menda Part: Manufactured for the specified Menda pump models.
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Made in the USA: Manufactured in the United States.
Specifications
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Brand: Menda
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Manufacturer Part Number: 35772
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SKU: 35772
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Product Type: Replacement Dispensing Pump Stem
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Material: PFA (Perfluoroalkoxy)
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Stem Length: 2.08" (Approximately 52.8 mm)
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Inside Diameter: 0.16" (Approximately 4.06 mm)
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Inside Diameter Tolerance: ± 0.005" (Approximately ± 0.127 mm)
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Compatible Pump Model: Menda 35770
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Compatible Pump Model: Menda 35771
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Chemical Resistance: Resistant to many acids, bases, and industrial solvents
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Surface Characteristics: Nonstick, Low Friction
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Primary Application: Replacement Fluid Transfer Stem
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Package Quantity: 10 Stems
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Pump Included: No
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Bottle Included: No
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Country of Origin: United States
Ideal For
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Maintaining Menda 35770 dispensing pumps
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Maintaining Menda 35771 dispensing pumps
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Replacing worn or damaged pump stems
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Laboratory liquid dispensing equipment
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Industrial solvent dispensing applications
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Chemical-resistant fluid transfer
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Electronics manufacturing workstations
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Precision cleaning equipment maintenance
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Technical service departments
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Manufacturing maintenance inventories
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Facilities operating multiple Menda dispensers
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Applications involving compatible acids and bases
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Workstations using compatible industrial solvents
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Keeping spare dispensing components readily available
Chemically Resistant PFA Construction
PFA, or perfluoroalkoxy, is a fluoropolymer known for its exceptional chemical resistance.
It is suitable for contact with many chemicals that may damage or degrade conventional plastic materials.
PFA is resistant to a broad range of acids, bases, and industrial solvents, making it useful for demanding chemical dispensing applications.
Its chemical stability helps maintain material integrity when used with compatible fluids.
For applications involving aggressive chemicals, always verify compatibility with the exact formulation and operating conditions.
The chemical resistance of the stem does not establish compatibility of the complete dispenser, including the pump, seals, and bottle.
Designed for Menda 35770 and 35771
These replacement stems are specifically designed for Menda 35770 and 35771 stainless steel dispensing pumps.
They provide a convenient way to replace the fluid transfer tube when the original stem becomes damaged, contaminated, or otherwise unsuitable for continued use.
Using the specified replacement component helps maintain the intended fit and configuration of the compatible pump.
Before installation, verify the pump model and inspect the remaining dispensing components.
These stems are not represented as universal replacements for every Menda dispenser.
Low-Friction, Nonstick Surface
PFA features a smooth surface with low-friction and nonstick characteristics.
These properties allow compatible fluids to travel through the stem with minimal resistance.
The material is particularly useful where chemical resistance and efficient liquid transfer are important.
The nonstick characteristics may also help reduce the tendency of certain materials to adhere to the tubing surface.
Proper cleaning and maintenance remain necessary to prevent contamination.
Precision Replacement Dimensions
Each stem measures 2.08 inches long.
The inside diameter is 0.16 inch with a specified tolerance of ± 0.005 inch.
These dimensions are important for maintaining the intended fit and fluid passage of the compatible Menda pump assemblies.
Replacement stems should be selected according to the pump manufacturer's specifications rather than appearance alone.
Using a stem with incorrect dimensions can interfere with proper pump operation.
Convenient 10-Pack for Maintenance
Each package contains 10 replacement stems.
This quantity is useful for facilities that maintain several dispensing pumps or prefer to keep replacement components available.
Having spare stems on hand can reduce equipment downtime when a stem needs to be replaced.
The multipack is also convenient for laboratories and manufacturing facilities with recurring maintenance requirements.
Replacement Stems vs. Complete Dispensers
Menda 35772 includes replacement PFA stems only.
It does not include a stainless steel dispensing pump, bottle, cap, or other components.
These stems are intended to be installed in compatible existing pump assemblies.
For customers needing an entirely new dispensing system, a complete dispenser or pump assembly must be purchased separately.
Chemical Compatibility and Safe Handling
These PFA stems are designed for use with many demanding chemicals, but no component should be assumed compatible with every substance.
Before use, verify chemical compatibility for the exact liquid, concentration, and operating conditions.
Always confirm compatibility of the entire dispensing assembly, including the bottle, pump, seals, and other wetted components.
Follow the chemical manufacturer's Safety Data Sheet and applicable workplace handling procedures.
For flammable or hazardous chemicals, use appropriate ventilation, personal protective equipment, and ignition-source controls.
Care and Maintenance
Inspect replacement stems before installation.
Confirm that the stem is clean, undamaged, and correctly sized for the intended pump.
Follow the pump manufacturer's service instructions when removing or installing replacement components.
Avoid forcing the stem into a fitting or using it with an incompatible assembly.
Use cleaning procedures suitable for PFA and the chemicals involved.
Replace stems that show signs of damage, contamination, deformation, or restricted flow.
Store unused stems in a clean location to protect them from dust and other contaminants.
Frequently Asked Questions
What is Menda 35772?
It is a package of 10 chemically resistant PFA replacement stems for Menda 35770 and 35771 stainless steel dispensing pumps.
How many stems are included?
Each package contains 10 replacement stems.
Are these complete dispensing pumps?
No. These are replacement stems only.
Is a dispensing bottle included?
No. Bottles are not included.
What material are the stems made from?
They are manufactured from PFA, or perfluoroalkoxy.
What is PFA?
PFA is a fluoropolymer known for excellent chemical resistance, low friction, and nonstick properties.
What is the length of each stem?
Each stem measures 2.08 inches long.
What is the inside diameter?
The inside diameter is 0.16 inch.
What is the diameter tolerance?
The specified inside diameter tolerance is ± 0.005 inch.
Which Menda pumps are compatible?
These stems are designed for Menda 35770 and 35771 stainless steel dispensing pumps.
Will these fit Menda 35770?
Yes. Menda lists 35770 as a compatible pump model.
Will these fit Menda 35771?
Yes. Menda lists 35771 as a compatible pump model.
Will these fit every Menda dispensing pump?
No. Compatibility is specified for models 35770 and 35771.
Can these stems be used with industrial solvents?
Yes. PFA is resistant to many industrial solvents. Verify compatibility with the specific chemical before use.
Are the stems resistant to acids?
PFA offers resistance to many acids, subject to the exact chemical and operating conditions.
Are the stems resistant to bases?
Yes. PFA is resistant to many bases, although specific chemical compatibility should always be confirmed.
Can they be used with corrosive liquids?
They are designed for demanding chemical dispensing applications, including many corrosive fluids. Verify the compatibility of the complete dispensing system.
What are the benefits of PFA over conventional plastic tubing?
PFA offers broad chemical resistance along with low-friction and nonstick properties.
Do the stems have a nonstick surface?
Yes. PFA naturally has nonstick characteristics.
Why is low friction useful?
It helps compatible liquids move through the stem with minimal resistance.
Can these be used in laboratory environments?
Yes. They are suitable for compatible laboratory liquid dispensing applications.
Can they be used in electronics manufacturing?
Yes. They can be used as replacement components in compatible dispensing equipment at electronics manufacturing workstations.
Are these stems ESD-safe?
The manufacturer does not specify an ESD classification for these replacement stems. Use them as part of an appropriately selected dispensing system.
Can I replace a damaged stem without replacing the pump?
Yes. These stems are intended for replacement in compatible pump assemblies.
Can they be used for routine maintenance?
Yes. They are suitable for maintaining the specified Menda dispensing pumps.
Are they reusable?
They are intended as replacement components for reusable dispensing equipment. Continued use depends on their condition and chemical compatibility.
Can the stems be cleaned?
Yes, using a cleaning method compatible with PFA and the chemicals involved.
How should unused stems be stored?
Store them in a clean, protected location to prevent damage and contamination.
Do these stems include installation hardware?
The package contains replacement stems only.
Can I cut the stems to fit other pumps?
These stems are specified for Menda 35770 and 35771. Modifying them for other pumps is not a manufacturer-confirmed application.
What is the difference between Menda 35772 and a complete dispenser?
Menda 35772 contains only replacement fluid transfer stems. A complete dispenser includes the bottle and pump assembly.
Are these genuine Menda replacement parts?
Yes. They are genuine Menda replacement stems.
Where are the stems manufactured?
They are made in the United States.
| SKU: | 35772 |
| UPC: | 363674122707 |
| Brand: | Menda |
| MPN: | 35772 |
| Made In: | United States |
