NBR/FKM/EPDM Diaphragm Seal Gaskets for high-pressure water pumps, industrial spraying systems, agricultural spraying equipment

High Pressure Pump Rubber Diaphragm

Product Description

Our molded rubber diaphragms are supplied for pump and fluid-control replacement requirements, including water-pump and spraying-system applications. Selection starts with the pump model, diaphragm profile and clamping dimensions. The service fluid, temperature and operating cycle determine the rubber compound and any reinforcement requirement.

The diaphragm forms a flexible barrier within the pump assembly and moves through repeated operating cycles. Match the outer sealing rim, central attachment and working profile to the pump drawing so that the replacement seats correctly.

For high-pressure pump service, provide the rated working pressure, stroke and cycle frequency. Confirm the diaphragm configuration against the pump requirements before ordering.

Key Features

Excellent Fatigue Resistance

• Designed for continuous reciprocating movement in diaphragm pumps.
• Compound selection takes repeated flexing and fatigue requirements into account.
• Include the required operating cycle and any endurance-test specification.

High Pressure Performance

• Suitable for high-pressure water pumps and fluid delivery systems.
• Confirm working pressure and dynamic movement for the specified pump assembly.

Excellent Wear & Tear Resistance

• Review abrasion and mechanical-stress requirements for the selected compound.
• Suitable for frequent start-stop operation and high-cycle applications.

Chemical & Environmental Resistance

• Available in different elastomer materials to withstand various fluids and working environments.
• Resistant to water, oils, chemicals, and agricultural spraying solutions depending on material selection.

Customized Design Capability

• Available in various sizes, profiles, and reinforcement structures.
• Custom formulations and tooling solutions available according to pump specifications and operating requirements.

Typical Applications

High Pressure Water Pump Systems

Used in:

• High-pressure cleaning equipment
• Industrial water spraying systems
• Pressure washing machines
• Water circulation systems

Agricultural & Plant Protection Machinery

Suitable for:

• Agricultural sprayers
• Crop protection equipment
• Fertilizer spraying systems
• Pest control spraying machines

Industrial Spray Systems

Applied in:

• Industrial misting systems
• Cooling spray equipment
• Dust suppression systems
• Fluid atomizing equipment

Pump & Fluid Control Equipment

Applications to review against the equipment drawing:

• Diaphragm pumps
• Pump assemblies using a diaphragm or separating membrane
• Fluid dosing equipment
• Industrial pumping systems

Available Materials

NBR (Buna-N)

Recommended for:

• Water-based fluids
• Hydraulic applications
• General industrial spraying systems

Advantages:

• Excellent abrasion resistance
• Good mechanical strength
• Cost-effective solution

EPDM

Recommended for:

• Water systems
• Agricultural spraying applications
• Hot water applications

Advantages:

• Excellent resistance to water and weather aging
• Good ozone and oxidation resistance

FKM

Recommended for:

• Chemical-resistant applications
• Oil-containing fluids
• Higher temperature environments

Advantages:

• Superior chemical resistance
• Excellent heat resistance
• Compound suitability reviewed for the specified operating conditions

Reinforced Rubber Diaphragm (Optional)

For high-pressure applications, diaphragms can be reinforced with fabric layers to improve:

• Pressure resistance
• Dimensional stability
• Tear resistance
• Service life

Technical Advantages

Custom Manufacturing Service

We provide customized rubber diaphragm solutions based on:

• Pump model and application requirements
• Operating pressure
• Working temperature
• Fluid compatibility
• Dimensional specifications

Specify material, Shore A hardness, reinforcement layers and geometry with the drawing or sample. For a quotation, include quantity and any dimensional, pressure or endurance-test requirements.