Rolling Diaphragm is a device that uses a flexible, usually cylindrical diaphragm as the active component to move a plunger or gate in a linear motion. In this design, the diaphragm is moved by a motor and rollers, which create a rolling wave motion that drives the diaphragm and plunger in a linear path. This type of device is typically used in hydraulic or pneumatic applications for controlling pressure regulation and flow control.
Customers’ drawings or samples are always welcome for quote and manufacture.
Diaphragm | ||
Function | Seal for Automotive, Machine, Valve, Electrical Appliances, etc. | |
Material | NR, NBR, HNBR, EPDM, Silicone, ACM, AEM, FKM, FVMQ, etc. diaphragm for regulator | |
Color | Black (recommended), but other color available | |
Hardness | 20~90 Shore A diaphragm for regulator | |
Certificates | RoHS, PAHS, REACH, FDA, KTW, NSF, WRAS, CCS, EN681-1, National Sanitary Certificate | |
Size | DN max = 2000mm, all other smaller sizes will per customer demands diaphragm for regulator | |
Properties (Optional and Multiple) |
Oil Resistance, Chemical Resistance, Steam Resistance, Aging Resistance, Heat Resistance, Cold Resistance, Fire Resistance, Environment Protective, Strong Resilience, Abrasion Resistance, etc. |

Rolling diaphragm