4 Treater Valve Balanced against upstream pressure Weights may be added to increaseliquid headBalanced againstdownstream pressureor vacuumCan be manuallyopened and closedStandard weight holds4 feet of liquid headTeflon packedrotary stuffing box
6 Installation Notes Do not install a regulator anywhere in gas equalizing line.Do not use equalizingLine as a source ofGas for any other device.Do not bow equalizingline or water will collectand freeze or causeuneven operationNote liquid drainon gas equalizingline.Opening vent valvewill cause treatervalve to open.
7 Installation Notes 12 feet 4 feet Standard weight & arm 2 weights & 29” arm
8 Trouble Shooting Stuffing box nut loose Salt crystals on stem Teflon packing wornSoft seat wornRemovable seat wornEither diaphragm off centerStuffing box nut too tightSoft seat leakingDiaphragms hardenedInfrequent draining of drip potLeaking stuffing boxValve will not shut off tightlyErratic OperationFreezing water on Main Diaphragm
12 26 DM Diaphragm Motor Valve FromProductionEqualize togas spaceAdjusting blocks shouldbe moved to adjust for spread.Weight is positioned formaximum height.Supply in15 to 20 psig.MeterMust be larger inDiameter than flow lines