Product Overview
This repair kit is specifically engineered for AUTEL 3.5-inch and 4-inch large pulse valves, serving as a critical replacement part to maintain the high efficiency of high-flow dust collector cleaning systems. The M/D102 diaphragm, as the core actuating element, directly impacts cleaning pulse strength and system energy consumption through its dynamic response and sealing integrity. Manufactured with premium polymer compounds and precision molding processes, this kit ensures stable and reliable opening/closing actions under heavy-load, high-frequency operating conditions.
Operating Principle & Performance Advantages
In a pulse jet system, the solenoid pilot valve rapidly exhausts the air above the main diaphragm. The resulting pressure differential forces the main valve to open instantly, releasing a powerful compressed air burst for cleaning. This diaphragm is optimized to deliver:
-
Instant Response: Optimized elastic modulus ensures rapid valve opening, providing a powerful cleaning pulse to effectively remove stubborn dust.
-
Reliable Sealing: Precision-molded valve seat guarantees zero leakage, preventing compressed air waste and reducing energy costs.
-
Extended Durability: High-quality materials offer excellent flex-fatigue and wear resistance, significantly prolonging maintenance intervals.
Flexible Material Options for Demanding Conditions
To match various flue gas temperatures, dust characteristics, and chemical environments, we offer multiple material solutions:

| Your Operating Condition | Recommended Material | Key Properties |
|---|---|---|
| Standard Conditions (Moderate temperature, general dust) | TPE (Thermoplastic Elastomer) | Excellent all-around performance, oil-resistant, and flex-fatigue resistant. Temperature range: -20°C to +80°C. |
| High-Temperature Environments (e.g., drying processes, hot flue gas) | FKM (F rubber) + PTFE Composite | Withstands up to 200°C, with PTFE anti-stick properties ideal for high-temperature, sticky dust. |
| Chemical or Ozone-Rich Environments | EPDM | Outstanding resistance to ozone, weathering, and steam. Suitable for chemical plants, wastewater treatment, etc. |
| Oil-Rich Environments | NBR | Superior resistance to petroleum-based oils and fuels, suitable for oily flue gas or process gases. |
Precision Fit & Quick Installation
-
Compatible Valves: Specifically designed for AUTEL 3.5-inch and 4-inch large pulse valves (corresponding order code: AE90).
-
Dimensional Standard: Precisely matches original manufacturer specifications, ensuring a perfect fit without on-site modifications.
-
Color Coding: Standard black; customizable colors (white, red, green, etc.) available for material or batch identification.
Quality Assurance & Supply Capability
-
Production Standards: Manufactured in an ISO 9001-certified facility, with each batch undergoing rigorous cycle life and seal integrity testing.
-
Supply Capacity: Monthly production capacity exceeds 100,000 sets, with a weekly supply capacity of 25,000 sets to meet bulk orders and emergency needs.
-
Packaging Options: Standard carton/box/pallet packaging. Customized packaging is available to meet specific logistics or branding requirements.
Key Value Summary
-
Boost System Efficiency: Rapid response and high-flow cleaning pulses significantly improve dust removal efficiency and reduce emissions.
-
Lower Operating Costs: Durable materials reduce replacement frequency; reliable sealing minimizes compressed air waste.
-
Flexible Custom Solutions: Multiple material and size options precisely match your specific application requirements.





