Hongum Technology (Shanghai) Co., Ltd
| Payment Terms | Wire Transfers, letters of credit, Western Union, Paypal, T/T, L/C |
| Supply Ability | 5000PCS/Month |
| Delivery Time | 7~15 working days |
| Packaging Details | PE+carton box |
| Name | Rolling Diaphragm, Fabric Reinforced Diaphragm |
| Material | NBR, NR, EPDM, FKM, CR, etc. |
| Color | Black or customized |
| Working Temperature | - 20℃~80℃ |
| Technics | Fabrication |
| Using scenes | Pressure regulator, Pneumatic Pressure-regulated Valve, Solenoid Regulator Valve, etc. |
| Brand Name | Hongum |
| Model Number | GMA-14 |
| Certification | 3A、CE、SGS approval |
| Place of Origin | China |
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Product Specification
| Payment Terms | Wire Transfers, letters of credit, Western Union, Paypal, T/T, L/C | Supply Ability | 5000PCS/Month |
| Delivery Time | 7~15 working days | Packaging Details | PE+carton box |
| Name | Rolling Diaphragm, Fabric Reinforced Diaphragm | Material | NBR, NR, EPDM, FKM, CR, etc. |
| Color | Black or customized | Working Temperature | - 20℃~80℃ |
| Technics | Fabrication | Using scenes | Pressure regulator, Pneumatic Pressure-regulated Valve, Solenoid Regulator Valve, etc. |
| Brand Name | Hongum | Model Number | GMA-14 |
| Certification | 3A、CE、SGS approval | Place of Origin | China |
| High Light | Fabric Reinforced Rolling Diaphragm ，Tear Resistant Fabric Reinforced Diaphragm ，Acid Alkali Resistant Rolling Diaphragm Seal | ||
Fabric Reinforced Rolling Diaphragm Tear Resistance Acid and Alkali Resistance Heat Resistance
Fabric Reinforced Rolling Diaphragm Product Overviews:
The rolling diaphragm is shaped like a top hat in the free state. It is made of rubber with silk cloth. The middle hole on the top is used for installing the valve stem. In order to fit, fix and seal, the top and bottom can be equipped with 0 type edge changer, or the bottom surrounding with mounting hole.
Fabric Reinforced Rolling Diaphragm Advantages:
• Fabrication technics of textile makes the product tear resistance stronger
• High quality raw materials ensure the excellent performance of the material itself
Fabric Reinforced Rolling Diaphragm Material details:
(1) For the present, common materials for rolling diaphragm are: natural rubber (NR), nitrile butadiene rubber (NBR), the performance of the two materials can meet the needs of most industrial environments. In special industrial environments (high temperature resistance, acid and alkali resistance) could use EPDM, fluorine rubber (FKM), neoprene rubber (CR) for production, but the cost is relatively high.
(2) Diaphragm material: nitrile rubber can be selected for natural gas and LPG, and chlorohydrin rubber can be used for gas.
(3) There is an elastic polyester cloth interlayer inside the diaphragm. Carefully observe the inner and outer surfaces of the diaphragm. One side can vaguely see the texture of the mesh cloth, and the other side is smooth. The smooth side is required to be the pressure surface of the gas. Therefore, For the diaphragm installed in the forward direction, the smooth surface is on the inner surface of the diaphragm, and the smooth surface of the diaphragm installed in the reverse direction is on the outer surface, which can avoid leakage and improve the compressive strength of the diaphragm.
Fabric Reinforced Rolling Diaphragm Specifications:
| Rolling Diaphragm | Model |
Outer diameter(mm) |
Inside diameter(mm) |
Base diameter(mm) | Height(mm) | Thickness(mm) | Pressure |
| GMA-20 | 38 | 22 | 17 | 21 | 0.6 | 0.1-1MPa | |
| GMA-201 | 45 | 40 | 33 | 28 | 0.7 | 0.1-1MPa | |
| GMA-202 | 49 | 37 | 26 | 22 | 0.7 | 0.1-1MPa | |
| GMA-21S | 61 | 50 | 39 | 29 | 0.7 | 0.1-1MPa | |
| GMA-21 | 63 | 53 | 43 | 33 | 0.7 | 0.1-1MPa | |
| GMA-22 | 65 | 50 | 45 | 51 | 0.7 | 0.1-1MPa | |
| GMA-23 | 80 | 72 | 55 | 35 | 0.7 | 0.1-1MPa | |
| GMA-24 | 94 | 74 | 64 | 45 | 0.7 | 0.1-1MPa | |
| GMA-31 | 96 | 90 | 79 | 90 | 0.8 | 0.1-1MPa | |
| GMA-301 | 98 | 80 | 70 | 34 | 1.5 | 0.1-1MPa | |
| GMA-311 | 120 | 102 | 94 | 60 | 0.8 | 0.1-1MPa | |
| GMA-32 | 140 | 93.2 | 83.2 | 56 | 1 | 0.1-1MPa | |
| GMA-33 | 184 | 167 | 155 | 80 | 1 | 0.1-1MPa | |
| GMA-34 | 216 | 170 | 142 | 40 | 1.1 | 0.1-1MPa | |
| GMA-SMI | 118 | 108 | 100 | 72 | 0.9 | 0.1-1MPa | |
| GMA-SM2 | 95 | 87 | 80 | 90 | 0.9 | 0.1-1MPa | |
| GMA-ST | 155 | 137 | 110 | 128 | 0.8 | 0.1-1MPa |
Our service:
1. Packaging is neutral packing or customized packing.
2. We will reply you within 24 hours.
3. We will also provide you with good after-sales service.
4. OEM or ODM orders are welcomed.
5. Trial orders are acceptable.
6. High quality and factory price.
7. 100% ensured the quality.
Company Details
Business Type:
Manufacturer,Importer,Exporter,Trading Company
Year Established:
2017
Total Annual:
500000-8000000
Employee Number:
80~100
Ecer Certification：
Verified Supplier
Hongum is specialized in research, production, sales, and distribution. It is located in the base of technology transfer of CAS, committed to research and development of new materials in both rubber and plastic industry. Hongum supply various of rubber diaphragms, dampers and all kinds of other r... Hongum is specialized in research, production, sales, and distribution. It is located in the base of technology transfer of CAS, committed to research and development of new materials in both rubber and plastic industry. Hongum supply various of rubber diaphragms, dampers and all kinds of other r...
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