Pressure Regulator Rubber Rolling Diaphragm Seal Valve Rubber Diaphragm
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.
| Product Materials | NBR,NR, etc. |
| Operating Temperature | -20℃~80℃ |
| Service Life | ≥1000000 times |
| Usage Scenario | Gas pressure regulator |
Rolling Diaphragm Introduction:
In the design of some medium and low pressure regulators, in order to solve the problem of unbalanced pressure regulator disc and improve the performance of the regulator, the method of installing a balanced diaphragm is often used. Installing a balancing diaphragm increases the differential pressure between the inlet and outlet pressures of the regulator. In the voltage regulator industry, it is called a balanced diaphragm in terms of use, and it is called a rolling diaphragm in rubber, instrumentation, machinery and other industries.
The rolling diaphragm is in the shape of a top hat in the free state. It is made of rubber with silk cloth. The top middle hole is used to install the valve stem. In order to install, fix and seal, the top and bottom can have O-ring edges. Or in the form of fixing holes around the bottom edge.
Rolling Diaphragm Characteristics:
• Fabrication technics of textile makes the product tear resistance stronger
• High quality raw materials ensure the excellent performance of the material itself
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.
