R Series diaphragm seals feature removable metal diaphragms that can be replaced or repaired as needed over time. The diaphragm is self-retained in the upper housing for easy repair or replacement. This extends the life of the seal element and allows for easy field replacement and service.
Type R Series seals have low operating costs and greatly reduce the need to completely replace the entire seal element, even in harsh applications.
Type R Series diaphragm seals employ a diaphragm retained between two bolted members. In the clean-out design, the diaphragm is situated between the top and middle ring. In the plain design, the diaphragm is located between the top and bottom. Type R Series diaphragms have integral gaskets with a baked-on TEFLON® finish.
A VITON O-ring also seals the fill fluid cavity. The seal element’s upper housing is contoured to allow maximum movement and minimal distortion due to improper handling. Type R seal elements have a volumetric displacement of .07 cubic inches.
FEATURES• Removable metal diaphragm - Self-gasketing simplifies field maintenance - Extends seal service life - Low operating costs• Materials available for corrosive applications• Ideal for general purpose applications - .07 cubic inch volumetric displacement • Standard seal ratings to 2000 psig (optional to 5000 psig)• Continuous duty seal element
Threaded Seal ElementsThere are four basic versions of R Series diaphragm seals with threaded attachments. The RB seal element is used for pressure applications only and has a standard pressure rating of 2500 psig (optional 5000 psig) at 100°F (38°C).