The SBFEC 1" Pulse Valve Diaphragm Kit D25 is a high-quality repair kit for 1-inch (DN25) baghouse pulse valves, which are commonly used in industrial dust collection systems. This kit is an important part of pulse valves. It is made to make valves work better, stop air from leaking, and clean filter bags.
Each kit includes one high-quality NBR diaphragm and one stainless steel spring that matches it. These are perfectly compatible with SBFEC series pulse valves and common models such as DMF-Z-25, DMF-ZM-25, DMF-Y-25, DMF-ZF-25, and MF series 1-inch pulse valves. Using advanced technology, the diaphragm can resist high temperatures, is very airtight and does not wear easily. This makes pulse valves last much longer and means they need less maintenance, which saves money in industrial dust management.
Perfect Compatibility: Specifically designed for SBFEC 1-inch (1'') pulse valves, compatible with DMF-Z-25, DMF-ZM-25, DMF-Y-25 and other mainstream 1-inch pulse valve models.
Premium Material: Diaphragm made of high-quality NBR (Nitrile Butadiene Rubber) with excellent oil resistance, aging resistance, and airtightness; spring made of stainless steel for strong fatigue resistance.
Long Service Life: Tested to withstand 1-1.5 million cycles under normal operating conditions, with operating temperature range of -20~80℃, adapting to most industrial working environmentssuperscript:3">.
Easy Installation: Standard size and structure, no need for professional tools, can be quickly replaced to restore pulse valve function, reducing downtime.
Cost-Effective Repair: Direct replacement of worn diaphragms (the core vulnerable part of pulse valves) avoids the need to replace the entire valve, greatly saving maintenance costs.
Reliable Sealing: Precision laser cutting and integral molding technology ensure tight fit with the valve body, eliminating air leakage and ensuring stable pulse jet performance.
| Diaphragm Order Code | Fitted Pulse Valve Model | Valve Port Size |
| DTY | All Double Diaphragm Pulse Valves | / |
| (Secondary Diaphragm) | ||
| D20A | DMF-Z20 | 3/4'' |
| DMF-ZM-20 | ||
| D20B | DMF-ZL-B | 3/4'' |
| D25 | DMF-Z-25 | 1'' |
| DMF-ZM-25 | ||
| DMF-Y-25 | ||
| DMF-T-20 | 3/4'' | |
| D40 | DMF-Z-40S | 1-1/2'' |
| DMF-Y-40S | ||
| DMF-ZF-40S | ||
| DMF-ZM-40S | ||
| DMF-T-25S | 1'' | |
| D50 | DMF-Z-50S | 2'' |
| DMF-Y-50S | ||
| DMF-T-50S | ||
| D62 | DMF-Z-62S | 2-1/2'' |
| DMF-Y-62S | ||
| DMF-T-62S | ||
| D76 | DMF-Z-76S | 3'' |
| DMF-Y-76S | ||
| D102 | DMF-Z-102S | 4'' |
| DMF-Y-102S | ||
| D102A | DMF-Y-102SA | 4'' |
| D300 | DMF-N-300 | 12'' |
Yes, this D25 diaphragm kit is specifically designed for SBFEC 1-inch (DN25) pulse valves. It is also compatible with common 1-inch pulse valve models such as DMF-Z-25, DMF-ZM-25, DMF-Y-25, and DMF-ZF-25. If you are unsure about compatibility, please provide your pulse valve model, and we will confirm for you.
The standard diaphragm is made of NBR, which has excellent oil resistance, aging resistance, and cost-effectiveness, suitable for most general industrial dust collection environments (temperature -20~80℃). FKM (Viton) diaphragms are optional, featuring better high-temperature resistance (up to 150℃) and chemical resistance, suitable for high-temperature or corrosive working conditions.
Under normal operating conditions (clean, dry compressed air, -20~80℃), the diaphragm can last 1-1.5 million cycles, which is about 1-2 years of service. We recommend checking the diaphragm every 6 months; replace it immediately if you find cracks, deformation, or air leakage.
No, professional installation is not required. The diaphragm kit is designed with a standard size and structure. You only need to turn off the air source, disassemble the pulse valve cover, remove the old diaphragm and spring, and install the new ones in the same position. Please refer to the installation steps in the "Product Problems and Solutions" section below.
Yes, we support custom services. If you need diaphragms of different sizes, materials (such as FKM), or thicknesses, please contact us with your specific requirements, and we will provide customized solutions.
We offer a 6-month manufacturer's warranty against defects in materials and workmanship. If the diaphragm is damaged due to quality issues within the warranty period, we will provide free replacement.