Product Description:
I. Core Material Properties
The material of the pulse valve diaphragm is crucial for
determining its performance. Dahe pulse valve diaphragms primarily
use elastomer materials. The common types and their characteristics
are described below:
Nitrile Butadiene Rubber (NBR):
Advantages: Good oil resistance, suitable for oil mist
environments; moderate elasticity and cost-effective.
Limitations: General temperature resistance (-20℃~120℃), weak ozone
aging resistance.
Fluoroelastomer (FKM):
Advantages: Excellent high and low temperature resistance, strong
resistance to chemical corrosion and aging; suitable for harsh
working conditions.
Limitations: Higher cost, slightly lower elasticity compared to
NBR.
Ethylene Propylene Diene Monomer (EPDM):
Advantages: Good weather and ozone resistance, suitable for a wide
temperature range.
Limitations: Poor oil resistance, not suitable for oil-containing
environments.
Some high-end models utilize composite materials to enhance tear
resistance and strength.
II. Physical and Mechanical Properties
Elasticity and Resilience:
The diaphragm requires high elasticity and resilience for quick
opening and closing during high-frequency pulse airflow.
Tensile Strength and Tear Strength:
Sufficient tensile and tear strength are crucial to prevent rupture
and damage during operation.
Hardness:
Materials with appropriate hardness levels ensure effective sealing
without compromising elasticity.
Temperature Resistance:
Choosing the right material based on working temperature is
essential.
III. Working Characteristics
Sealing Performance:
Precision processing of the diaphragm and valve seat surface
ensures complete sealing.
Response Speed:
Quick opening and closing in milliseconds is essential for
efficient ash cleaning.
Medium Resistance:
The diaphragm must withstand various elements in compressed air to
ensure long-lasting performance.
Technical Parameters:
| Technical Parameter | Description |
|---|
| Diaphragm Material | NBR (Conventional nitrile rubber) |
| Temperature Range | -20 ℃ to 80 ℃ (Suitable for room temperature drying conditions) |
| Working Pressure Range | 0.4-0.7MPa |
| Temperature Range (FKM) | -20 ℃ to 200 ℃ (some models can reach 260 ℃, Suitable for high
temperature and corrosive environments) |
| Brand | TAEHA |
| Color | Red, Green, Black |
Applications:
Working Condition Adaptation: The material is selected according to
the temperature of the dust removal system, medium (oil-containing,
corrosive gas, etc.), and pulse pressure (usually 0.2~0.6MPa). For
example:
Corrosive environments such as waste incineration plants and
chemical workshops → fluororubber diaphragms;
Normal temperature and non-corrosive environments such as wood
processing and grain processing → nitrile rubber diaphragms.
V. Service Life
Under normal working conditions, the service life of high-quality
diaphragms can reach 100,000~300,000 pulse cycles (about 1~3
years), which depends on the material, working temperature, pulse
frequency and maintenance conditions. Improper maintenance (such as
a large amount of moisture in compressed air leading to accelerated
aging of the diaphragm) will significantly shorten its service
life.
In conclusion, the core properties of Dahe pulse valve diaphragm
can be summarized as "high elasticity, strong sealing, fatigue
resistance and strong adaptability". Its performance is directly
related to the stable operation of the pulse valve and even the
entire dust removal system. When selecting, the material, size and
mechanical properties should be comprehensively considered in
combination with the actual working conditions.
Packing and Shipping:
Product Name: Pulse Valve Diaphragm
Description: Replacement diaphragm for pulse valves
Material: High-quality rubber
Package Contents: 1 x Pulse Valve Diaphragm
Package Dimensions: 4in x 4in x 1in
Shipping Method: Standard Shipping
Shipping Cost: $5.99
