Emerson 788 DVC manual Personal Injury AND/OR Equipment Damage

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D E C 2012

DANIELTM MODEL 788DVC DIGITAL CONTROL VALVES

PERSONAL INJURY AND/OR EQUIPMENT DAMAGE

Caution is required when performing any disassembly procedure as the Cylinder head is bolted to a spring loaded cylinder assembly. Service should only be performed by trained and qualified service personnel.

Failure to comply with recommended could result in serious injury and/or damage to the equipment.

e.Lower the “new” cylinder assembly and cylinder head into the valve body. Align the bolt holes in the cylinder head with the studs in the main valve body.

f.Fasten the cylinder head into position using retaining nuts. Tighten nuts, alternating to opposite sides, to assure a uniform seat.

g.Return all tubing and/or valve accessories to their original position.

5-8

DISASSEMBLY AND REASSEMBLY

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Contents DanielTM Model 788 DVC digital control valves This page intentionally left blank Important safety instructions Product operation personnel Safety signal words and symbols Safety alert symbolThis page intentionally left blank Page Warranty and limitation of liability Introduction Figures TablesDanieltm Model 788DVC Digital Control Valves Introduction Aggressive ProductsPrinciple of Operation Equipment DamageOperational Sequence Closed Position Open Control Position Open Position no control Pressure Class Do not exceed specifications listed belowSafe Working Temperature Ranges Maximum Safe Working PressureFlow vs. Pressure Drop See Figure ConnectionsValve Capacity Flow vs Pressure Loss Cylinder Head Pressure/Temperature RatingsMaterials of Construction Main Valve Body Main Valve CylinderTubing Astm A352 LCC WCB Dimensions Valve Size 150# Ansi 300# Ansi No Indicator With Indicator Recommended Installation Instructions General Considerations as Applied to the DL8000 Personal Injury or Death AND/OR Property Damage Use equipment for its intended purposeTypical Application Top Loading Typical Application Bottom Loading Control Valve Configuration new for DL8000 Cylinder Assembly Removal All Daniel Valves Cylinder Disassembly Recommended Low Flow Set-point Cylinder Reassembly Cup-seal Replacement on Existing AP Option Piston RetrofitOption Assembly Danieltm Model 788DVC Digital Control Valves Personal Injury AND/OR Equipment Damage Danieltm Model 788DVC Digital Control Valves Troubleshooting Condition Probable Cause Correction Danieltm Model 788DVC Digital Control Valves Parts List Parts List 2, 3, 4, 6, 8 Sizes Recommended Spare Parts Valve Cylinder Assembly Decontamination/Cleaning Fluids Process Infectious Radioactive Explosive Pyrophoric Poison GasShipping Requirements Page W .em erson.com