Rolling diaphragm / piston servo diaphragm

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.

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
(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

Rolling diaphragm

Rolling diaphragm size list


“We are a factory with 15 years of experience in diaphragm production,” which I said in previous years.But now I want to say that We are researchers on the diaphragm field, and we still have a lot to go.Add:RM2006 Cross-border e-commerce Park Xinyuan Road Li’an Hangzhou 311300 ChinaTelephone: 86-571-81899556FAX:E-mail: