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You are here: Home / Technical INFO / THE rolling rubber diaphragm CONCEPT CONQUERING FRICTION

THE ROLLING Rubber diaphragm CONCEPT CONQUERING FRICTION

The Rolling Rubber diaphragm is a tough, flexible seal with a unique configuration that permits relatively long piston strokes while completely eliminating sliding friction. Formed in the shape of a truncated cone, or top hat, the diaphragm is turned in on itself when installed so that, during the stroke, it rolls and unrolls alternately on piston skirt and cylinder wall. The rolling action is smooth and effortless, completely eliminating sliding contact and breakaway friction. With the outer flange clamped to the cylinder and the center fastened to the piston head, the forms a perfect barrier, preventing blow-by leakage and pressure loss.

Depending on the materials and geometry selected, can function effectively with applied pressures of 3000 pounds. Operating temperatures may range from –120oF to +600oF.highly resistant to oil, ozone, acids, alkalis, steam, and other corrosive fluids. The rubber diaphragm material is essentially a layer of specially woven fabric, impregnated with a thin layer of elastomer. Total thickness is usually 0.015 to 0.045 inches. The fabric, which lends high tensile strength to the diaphragm, is designed to permit free circumferential elongation (allowing free rolling action) while preventing axial distortion. This eliminates stretching or ballooning during the stroke.

The flex life of the rolling Rubber diaphragm depends on operating pressures, amount of axial and cir- conferential stress applied during the stroke, and the materials which form it. In general, a properly installed will provide a life of millions of cycles. Because of its unique properties, the is widely used in controls and actuators requiring high sensitivity to small pressure changes and excellent accuracy and reproducibility.

They are also used where no leakage can be tolerated, and where more liberal machining tolerances can significantly reduce hardware costs. Typical products using the include: pressure regulators, linear actuators, demand valves, dashpots, measuring instruments, gauge protectors, air relays, etc. The applications are found in every industry–automotive, agricultural, aerospace, medical, etc. For proper Rolling Rubber diaphragm selection, the Design Parameter Sheet is an indispensable tool. The design format provides all the necessary data for the correct diaphragm design.

Product Catalog

  • Rubber diaphragms for Pneumatic Regulator Actuator2019-04-08 - 17:22
  • Rolling diaphragm / piston servo diaphragm2019-04-08 - 17:18
  • LPG CNG Diaphragm2019-04-08 - 17:16
  • Teflon / PTFE Diaphragms2019-04-08 - 17:13
  • Solenoid Pulse Valve Diaphragms2019-04-08 - 17:10
  • Turbo Actuator Waste-gate wastegate Turbocharger Diaphragms2019-04-08 - 17:05
  • Diaphragm Valve pump Diaphragms2019-04-08 - 16:59
  • Gas meter diaphragms2019-04-08 - 16:51
  • Fabric rubber diaphragm sheet NBR+fabric2019-04-08 - 15:28

News

  • The rolling diaphragm of the pressure compensator was successfully developed2020-12-28 - 21:41
  • Rolling diaphragm in practical applications on deep sea submersibles | Idiaphragm2019-11-21 - 09:57
  • Rolling diaphragm pressure compensator used for deep-sea manned submersibles | Idiaphragm2019-11-21 - 09:42
  • what is a rubber diaphragm? | Idiaphragm2019-11-17 - 16:21
  • EGR valve Diaphragms free designEGR valve Diaphragms free design2019-04-08 - 09:25
  • Process Flow DiagramProcess Flow Diagram2019-04-08 - 09:24
  • Technology transfer & cooperationTechnology transfer & cooperation2019-04-08 - 09:23
  • Development history of us2018-12-29 - 17:13

ABOUT US

“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: huhubox@gmail.com

LASTEST NEWS

2020-12-28/by rub

The rolling diaphragm of the pressure compensator was successfully developed

2019-11-21/by rub

Rolling diaphragm in practical applications on deep sea submersibles | Idiaphragm

2019-11-21/by rub

Rolling diaphragm pressure compensator used for deep-sea manned submersibles | Idiaphragm

2019-11-17/by rub

what is a rubber diaphragm? | Idiaphragm

2019-04-08/by admin

EGR valve Diaphragms free design

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