Graymills DDP .375' Pump User Manual

795–90923GM 3-0701428BTI2194AGraymillsPOLYPROPYLENEAir OperatedDouble Diaphragm Pumps3/8" ModelAir Valve Service Instructions100 psi (0.7 MPa, 7

20Service8. Grease the inside surfaces of the shift saddle (14) andinstall it as shown in Fig. 14. Hold the link assemblyfirmly in place and install t

27PartsAir Motor Parts List (Matrix Column 2)DigitRef.No.Part No. Description Qty3 1 HOUSING, center;polypropylene; see page 2812{ COVER, air valve; p

28Parts* Included in Pump Repair Kit, which may be purchasedseparately.{ Included in Air Valve Kit 239952, which may be pur-chased separately. See par

29Performance Chart – pumps with Teflon Diaphragms020406080100120012345678TEST CONDITIONSPump tested in water with inlet submerged.(7.6) (15.2) (22.7)

30Performance Charts – pumps with Hytrel Diaphragms020406080100120012345678TEST CONDITIONSPump tested in water with inlet submerged.(7.6) (15.2) (22.7

32WARRANTYGraymills Corporation warrants that the equipment manufactured anddelivered, when properly installed and maintained , shall be free fromdefe

3EQUIPMENT MISUSE HAZARDAny misuse of the equipment or accessories, such as overpressurizing, modifying parts, using incompatiblechemicals and fluids,

4CAUTIOND Verify the chemical compatibility of the pump wetted parts and the substance being pumped, flushed orrecirculated. Chemical compatibility ma

14MaintenanceLubricationThe air valve is designed to operate unlubricated, howeverif lubrication is desired, every 500 hours of operation (ormonthly)

11OperationPressure Relief ProcedurePRESSURIZED EQUIPMENT HAZARDThe system pressure must be manually relieved to pre-vent the system from starting or

16ServiceReplacing the Air ValveTools RequiredD Torque wrenchD Phillips screwdriverD O-ring pickNOTE: Air Valve Kit 239952 is available. Parts include

17Service01436BFig. 10132{21014581VALVE PLATE DETAILGREASE APPLICATION19{15Torque oppositely and evenly to 8 to 14 in-lb (0.9 to 1.6 N-m).Torque to 5

18ServiceRepairing the Air ValveTools RequiredD Torque wrenchD Phillips screwdriverD O-ring pickD Rubber malletDisassemblyWARNINGTo reduce the risk of

19ServiceReassembly1. If the detent collar (7) was removed, carefully install anew collar in a new cover (2), using a rubber mallet.See Fig. 12.2. Gre