G12 Garlock-Compatible · DCF Series
Garlock G12 Diaphragm Repair Kit
A reinforced synthetic-rubber diaphragm replacement for rotating-arm baghouse pulse valves, covering 3/4-inch through 3-inch connections and engineered for reliable sealing across demanding industrial cleaning cycles.
Technical Parameters
Core operating specification.
Model CompatibilityDCF series, G12 Garlock compatible
Connection Sizes3/4″ / 1″ / 1-1/2″ / 2″ / 2-1/2″ / 3″
Nominal DiametersDN25 / DN40 / DN50 / DN62 / DN76
Compatible Valve BodyHigh-grade aluminum pulse valve body
Diaphragm MaterialSynthetic rubber with reinforced metal frame layer
Working Pressure0.2–0.7 MPa / 58–87 psi
Working MediumClean compressed air
Compatible VoltageDC24V / AC220V, 50Hz valve systems
Current0.8A (0.05A)
Temperature Range−20°C to 80°C (standard compound) · −34°C to 100°C (Continental® premium compound)
Warranty12 months (standard) · 24 months (Continental® premium)
Relative Humidity≤85%
Service Life≥1 million cycles / approximately 5 years
ResistanceWear, impact, heat, corrosion, and cold resistant
Product Standards
Installation and maintenance for long diaphragm life.
Valve InspectionClean the valve seat and remove debris or sharp burrs before installing the diaphragm
Bolt TighteningTighten bonnet bolts gradually in a star pattern to distribute pressure and prevent edge leaks
Air QualityUse dry, oil-free compressed air to reduce chemical degradation of the synthetic rubber
Pressure ControlKeep pressure within 0.2–0.7 MPa; exceeding 87 psi shortens diaphragm fatigue life
Temperature ControlKeep service temperature below 80°C to prevent premature diaphragm damage
Maintenance ResultCorrect installation restores rapid pulsing, reliable closure, and efficient baghouse cleaning