TAEHA pulse jet valve diaphragms are the core wearing spare parts for TAEHA TH‑5 series dust collector pulse valves, widely used in baghouse dust removal systems for cement plants, mines, steel mills, power plants, chemical and powder‑processing industries. Choosing the correct diaphragm model, port size and rubber material is the key to stable pulse cleaning performance and a long service life. This article covers the full TAEHA MD01 / MD02 / MD03 diaphragm range, including matched TH‑5 valve models, port sizes and material options, to help maintenance engineers and purchasing teams quickly confirm the right repair kit when searching on Google.
Full TAEHA MD‑Series Diaphragm Model & Compatibility Table
| Diaphragm Model No. |
Valve Port Size |
Fitted TAEHA Pulse Valve Models |
Material |
| MD01‑20 / MD02‑20 |
3/4" |
TH‑5820‑B, TH‑4820‑B, TH‑5825‑B, TH‑5820‑C, TH‑4820‑C |
NBR (Red & Green) |
| MD01‑25 / MD02‑25 |
1" |
TH‑4825‑B, TH‑5825‑C, TH‑4825‑C, TH‑5840‑F, TH‑4840‑F |
NBR |
| MD01‑25M |
1" |
TH‑5825‑M |
NBR |
| MD01‑30 / MD02‑30 / MD03‑30 |
1‑1/4" |
TH‑5830‑B, TH‑5430‑B, TH‑4830‑B, TH‑4430‑B |
NBR |
| MD03‑30M |
1‑1/4" |
TH‑5430‑M, TH‑4430‑M |
NBR |
| MD01‑40 / MD02‑40 / MD03‑40 |
1‑1/2" |
TH‑5840‑B, TH‑5440‑B, TH‑4840‑B, TH‑4440‑B, TH‑5840‑C, TH‑5440‑C, TH‑4840‑C, TH‑4440‑C, TH‑5850‑F, TH‑5450‑F, TH‑4850‑F, TH‑4450‑F |
NBR |
| MD03‑40M |
1‑1/2" |
TH‑5440‑M, TH‑4440‑M |
NBR |
| MD03‑50 |
2" |
TH‑5450‑B, TH‑4450‑B |
NBR |
| MD03‑50M |
2" |
TH‑5450‑M, TH‑4450‑M |
NBR |
| MD03‑60 / MD04‑60 |
2‑1/2" |
TH‑5460‑B, TH‑4460‑B, TH‑5460‑S, TH‑4460‑S |
NBR |
| MD03‑75 |
3" |
TH‑5475‑B, TH‑4475‑B |
NBR |
| MD03‑75M |
3" |
TH‑5475‑M, TH‑4475‑M |
NBR |
| MD03‑90M |
3‑1/2" |
TH‑5490‑M, TH‑4490‑M |
NBR |
| MD03‑00M |
4" |
TH‑5400‑M, TH‑4400‑M |
NBR |
Material Selection Guide
- NBR (Nitrile / Buna‑N, "Red & Green"): The only available material for TAEHA MD‑series diaphragms. Suitable for normal compressed‑air working conditions, working temperature roughly ‑10 ℃ ~ +80 ℃, cost‑effective and the first choice for most ordinary dust collector working environments.
Installation & Usage Tips
- Cut off the compressed air supply and release residual pressure in the valve before replacement for safe operation.
- Clean the valve seat surface; remove old diaphragm fragments, dust and impurities to avoid air leakage after assembly.
- Confirm the diaphragm model (MD01 / MD02 / MD03), TH‑5 valve model, port size and NBR material fully match the original spare part. A wrong model causes blow failure, continuous air leaking or early diaphragm rupture.
- Tighten the bolts evenly in a cross sequence; do not over‑torque and deform the diaphragm.
- Run an air‑tightness test after assembly and check the valve port and joint positions for any leakage.
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