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FISHER Regulator Actuator Diaphragm 2E669902202, New and Original - Cast Iron / VALVE PARTS

Fisher 2E669902202 Type 667 Pneumatic Actuator Diaphragm

SKU: 1601184877341Brand: TSA HydraulicsCategory: Valves

The Fisher 2E669902202 Pneumatic Actuator Diaphragm is a replacement component designed for compatible Fisher Type 667 diaphragm actuators in industrial control valve systems.

  • Spring-Return Diaphragm Actuator Actuator Configuration
  • 34 and 40 Compatible Actuator Sizes
$1,418.10
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Fisher 2E669902202 Type 667 Pneumatic Actuator Diaphragm

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Product Overview

The Fisher 2E669902202 Pneumatic Actuator Diaphragm is a replacement component designed for compatible Fisher Type 667 diaphragm actuators in industrial control valve systems. Manufactured for Fisher equipment by Emerson, this molded nitrile and nylon diaphragm provides a flexible pressure-responsive barrier that converts pneumatic pressure into mechanical movement. Its construction supports effective pressure sealing, reliable actuator response, and consistent valve operation.

The 2E669902202 is specified for Fisher Type 667 actuators in sizes 34 and 40. It is used to replace worn, damaged, or leaking actuator diaphragms during equipment servicing. By helping maintain the separation between pneumatic pressure chambers and ensuring effective pressure transmission, the diaphragm supports reliable operation in oil and gas processing, chemical manufacturing, power generation, water treatment, and industrial automation. 

Technical Specifications

Specification

Value

Product Name

Pneumatic Actuator Diaphragm

Manufacturer / Brand

Fisher / Emerson

Part Number

2E669902202

Product Type

Actuator Replacement Diaphragm

Component Category

Pneumatic Actuator Spare Parts

Compatible Actuator

Fisher Type 667

Compatible Actuator Sizes

34 and 40

Diaphragm Material

Molded Nitrile/Nylon

Diaphragm Construction

Reinforced Flexible Membrane

Primary Function

Pneumatic Pressure Sealing and Force Transmission

Diaphragm Design

Molded, Circular

Nominal Outside Diameter

13.25 Inches

Nominal Centre Hole Diameter

0.381 Inches

Nominal Bolt Circle Diameter

12 Inches

Installation

Internal Actuator Diaphragm Replacement

Actuator Configuration

Spring-Return Diaphragm Actuator

Compatible Valve Systems

Selected Fisher Sliding-Stem Control Valves

Operating Medium

Compatible Pneumatic Instrument Air

Quantity

1 Diaphragm

Condition

New

Warranty

1 Year 

Key Features

Replacement diaphragm for Fisher Type 667 pneumatic actuators

Original manufacturer part number 2E669902202

Compatible with Fisher actuator sizes 34 and 40

Molded nitrile and nylon construction

Flexible reinforced design for pneumatic pressure response

Supports effective sealing within actuator assemblies

Helps restore reliable actuator movement and positioning

Suitable for replacing worn or damaged diaphragms

Designed for compatible industrial control valve equipment

Supports preventive maintenance and actuator refurbishment

Useful for reducing pneumatic air leakage caused by diaphragm wear

Suitable for professional industrial valve maintenance

Typical Applications

Fisher Type 667 actuator maintenance

Pneumatic actuator diaphragm replacement

Industrial control valve servicing

Oil and gas processing facilities

Chemical and petrochemical manufacturing plants

Petroleum refining installations

Power generation and utility systems

Water and wastewater treatment facilities

Industrial pneumatic equipment refurbishment

Sliding-stem control valve actuator repair

Shipping & Support

Fast dispatch – Australia & Worldwide Shipping

Technical assistance available

1-year warranty

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Questions about this part?

Our engineers can confirm fit before you order. Contact support.

How do I find the right part for my system?

Three options. Search by part number if you have the OEM code from Parker, Danfoss, Linde, Kawasaki, Kayaba or Grundfos — our search recognises both manufacturer codes and aftermarket cross-references. Browse by category if you know the component type (pumps, valves, cylinders, etc.). Or send a spec sheet to our engineering desk and we'll cross-reference against our 3,000+ SKU catalogue within one business day.

Can you help me size a pump or valve for my application?

Yes — sizing support is included with every order. Send us your operating pressure, flow rate, viscosity, drive speed and duty cycle, and our engineers will recommend a suitable component from our catalogue with full datasheets. We don't custom-build parts ourselves, but we can spec the right OEM component for almost any standard industrial application.

Can you cross-reference a discontinued part?

Yes — cross-referencing is one of the things we do most. Send us the original part number (even if the manufacturer has dropped it) and our engineering desk will identify a current equivalent or compatible alternative. Cross-reference lookups are free and typically come back within 4 business hours.