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MILROYAL D DISC DIAPHRAGM ® Low Flow Liquid End Instruction Manual Manual No : 54248 Rev. : 01 : 05/2019 Rev. Date...
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PRECAUTIONS The following precautions should be taken when working with metering pumps. Please read this section carefully prior to installation. Protective Clothing ALWAYS wear protective clothing, face shield, safety glasses and gloves when working on or near your metering pump. Additional precautions should be taken depending on the solution being pumped.
SECTION 1 - DESCRIPTION The instruction manual is designed to serve Each suction stroke of the plunger pulls the as a supplement to instruction manual 53941, diaphragm towards the oil side contour plate so which provides both general information and that process liquid flows into the displacement specific instructions for installing, operating, and chamber through the suction ball-check valve.
Rupture Detection with gauge & Nema 7 Switch Note: All leak detection options are limited to 400 psig max. discharge pressure. 10 = 116 SPM Figure 1. Model Code 0.13 HOLE 2.25 4 PLCS MILTON ROY 0.13 FLOW CONTROL DIVISION (215) 441-0800 PRODUCT CODE SERIAL NUMBER 2.00 2.25...
Contact Milton Roy Service Department be stored 12” or more above the ground. for recommended VPCI materials. If equipment is to be shipped directly from Milton Roy into long term storage, contact Milton Roy to arrange for factory preparation. Instruction Manual...
SECTION 3 - INSTALLATION 3.1 UNPACKING 3.4 MILROYAL D CONVERSION STEPS ® (SEE FIGURE 7) Units are shipped Ex Works , Ivyland , Pa. and the title passes to the customer when the carrier signs 3.4.1 Disassembly for receipt of the unit. In the event that damages 1.
SECTION 3 - INSTALLATION 3.6 GENERAL INFORMATION Sealed piping, sufficient suction pressure, and properly adjusted packing are absolutely necessary Use piping materials that are resistant to corrosion for accurate and stable pump operation. by the liquid being pumped. Use care in selection of materials to avoid galvanic corrosion at points 3.8 DISCHARGE PIPING of connection to the pump liquid end.
SECTION 3 - INSTALLATION 3.10 SUCTION LIFT CONDITIONS 4. Filter sludge by installing a glass wool filter or Milton Roy Sludge Trap in the suction line. Disc Diaphragm Liquid End pumps are designed The first and last of these precautions will benefit...
This may take an hour housing. Normally, these fasteners are installed or in some cases overnight. It is helpful at the at the Milton Roy, and do not require inspection initial startup to relieve the discharge pressure or service.
LINE MAY CAUSE EQUIPMENT DAMAGE OR BODILY HARM. interchangeable (See table 1). Before buying RPM CONTACT MILTON ROY IF PROPER RELIEF VALVE ADJUST- kits for units in the field, contact factory service. MENT CANNOT BE ACHIEVED.
SECTION 4 - OPERATION 4.4 DISASSEMBLY 4.6 REASSEMBLY Remove and disassemble check valves as follows: Clean all parts for reassembly, then proceed as follows: 1. Unscrew check valve assembly from diaphragm head. 1. Set process side contour plate in diaphragm head.
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DATE NOMENCLATURE MATERIAL NUMBER Routine Maint. Kit, Mill D, Before 01/01/01 RPM037 316SS 1/4” NPT Conn, (Female) Routine Maint. Kit, Mill D Checks, 01/01/01 - 01/01/02 RPM038 316SS 1/4 NPT Both Ends, (Male) 01/01/01 - 01/01/02 RPM127 Routine Maint. Kit, MIL D Double Ball 316SS Routine Maint.
Figure 7. Milroyal D Disc Diaphragm Liquid End Section View ® Instruction Manual...
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FIGURE 6 & 7 PARTS LIST FOR LIQUID END ASSEMBLY (PLUNGER DIAMETERS 1/8” & 3/16”) Item Description Part Number Quantity 316SS Alloy-20 Alloy-C22 Screw, Socket Head 3/8-16 X 1-3/4 405-0029-154 Washer 3/8 SAE, Plated 40476 Spring - Diaphragm Return 20626 Return Button, 316SS 20546 Return Button, Alloy-20...
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PARTS LIST FOR LIQUID END ASSEMBLY FIGURES 6 & 7, CONT. Item Description Part Number Quantity 316SS Alloy-20 Alloy-C22 1/4: NPT Double Ball Check Valve, 9001 Suction, Used before 01/01/01, 221-9997-128 See Figure 8 1/4: NPT Double Ball Check Valve, 9002 Discharge, Used before 01/01/01, 221-9997-228...
Figure 8. Double Ball Suction & Discharge Valve Used Before 01/01/01 IMPROPER VALVE ASSEMBLY WILL CAUSE EQUIPMENT DAMAGE AND MAY CAUSE BODILY HARM. Figure 8: 1/4: NPT Double Ball Check Valve* Item Number Nomenclature Part Number Quantity Material 9001 Suction Valve Assembly 221-9997-128 316SS 9002...
Figure 10. Double Ball Suction & Discharge Valve Used After 01/01/02 IMPROPER VALVE ASSEMBLY WILL CAUSE EQUIPMENT DAMAGE AND MAY CAUSE BODILY HARM. Instruction Manual...
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Figure 10: 1/4: NPT Double Ball Check Valve* Item Number Nomenclature / Material Part Number Quantity Material Suction Valve Assembly, 316SS 30733 9001 Suction Valve Assembly, Alloy 20 30722 Suction Valve Assembly, Alloy C-22 30735 Discharge Valve Assembly, 316SS 30734 Discharge Valve Assembly, Alloy 20 30723 9002...
Figure 11. Refill Valve Assembly PARTS LIST FOR REFILL VALVE ASSEMBLY Recommended Item Number Nomenclature / Material Part Number Quantity Maintenance Items Figure 11 Refill Valve Assembly 20472 long term Refill Valve Body 20581 Set Screw Plug 40468 Retaining Nut 405-0182-012 Ball Poppet 20022...
4030 4040 4024 4026 4028 4050 4020 4021 4022 4060 4010 4000 Figure 12. Relief Valve Assembly PARTS LIST FOR REFILL VALVE PARTS LIST FOR RELIEF VALVE ASSEMBLY - 20763 (DRAWING NUMBER 102-2315-000) Recommended Item Number Nomenclature/Material Part Number Quantity Maintenance Items Figure 12...
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