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Home My WebLink AboutESV-1 Asco 8215G030 Installation and MaintenancePage 1 of 4 All Rights Reserved.E209037---04/10 ASCO Valves EASCO Valve, Inc.R 50 Hanover Road, Florham Park, New Jersey 07932 www.ascovalve.com R Installation & Maintenance Instructions SERIES 2--WAYINTERNALPILOT--OPERATEDSOLENOIDVALVES 8215 I&M No.V5996R6 NORMALLY CLOSED OPERATION -- 3/4I,1I,1--1/4I,1--1/2I OR 2I NPT IMPORTANT: See separate solenoid installation and maintenance instructions for information on: Wiring, SolenoidTemperature,Causes ofImproper Operation,andCoil Replacement. DESCRIPTION Series 8215 valves are 2---way normally closed internal pilot---operated solenoid valves. Valve bodies are made of rugged aluminum withtrim andinternal partsmade ofsteel and stainless steel. Series 8215 valves may be provided with a general purpose or explosionproof solenoid enclosure. OPERATION Normally Closed:Valve is closed when solenoid is de---energized; open when energized. Note: No minimum operating pressure differential required. INSTALLATION CAUTION: Not all valves are approved for fuel gas service. Check nameplate for correct catalog number,pressure,voltage,frequency,andservice.Neverapply incompatible fluids or exceed pressure rating of the valve. Installation and valve maintenance to be performed byqualified personnel. Future Service Considerations Provision should be made for performing seat leakage, external leakage, and operational tests on the valve with a nonhazardous, noncombustible fluid after disassembly and reassembly. Temperature Limitations For maximum valve ambient and fluid temperatures, refer to chart below. Check catalog number prefix on nameplate to determine maximum temperatures. Construction CoilClass CatalogNumberPrefix Max.AmbientTemp_F Max.FluidTemp_F AC Construction F FT 125 125 H HT 140 140 B None DC Construction or or 77 77 H HT Positioning Valve must be mounted with solenoid vertical and upright. Piping Connect piping to valve according to markings on valve body. Apply pipe compound sparingly to male pipe threads only.Ifappliedtovalvethreadsthecompoundmayenterthe valveandcauseoperationaldifficulty.Avoidpipestrainby properly supporting and aligning piping. When tightening thepipe,donotusevalveorsolenoidasalever.Locate wrenchesappliedtovalvebodyorpipingascloseaspossible to connection point. CAUTION:To avoid damage to the valvebody, DONOT OVERTIGHTEN PIPE CONNECTIONS. If Teflon* tape, paste,sprayorsimilarlubricantisused,useextracarewhen tightening due to reduced friction. IMPORTANT: To protect the solenoid valve, install a strainerorfilter,suitablefortheserviceinvolved,intheinlet side as close to the valve as possible. Clean periodically depending on service conditions. See ASCO Series 8600, 8601 and 8602 for strainers. MAINTENANCE WARNING: To prevent the possibility of death, serious injury or property damage, turn off electricalpower, depressurizevalve, extinguishall open flames and avoid any type of sparking or ignition. Vent hazardous or combustiblefluid toa safe area before servicing the valve. NOTE: It is not necessary to remove the valve from the pipeline for repairs. Cleaning Allsolenoidvalvesshouldbecleanedperiodically.Thetimebetween cleanings will vary depending on the medium and service conditions. In general, if the voltage to the coil is correct, sluggish valve operation, excessivenoise orleakagewill indicate that cleaning is required. In the extreme case, faulty valve operation will occur and the valve may fail to open or close. Clean valve strainer or filter when cleaningthe valve. *Dupont Co. Registered Trademark I&M No.V5996R6Page 2 of 4 EASCO Valve, Inc.R 50 Hanover Road, Florham Park, New Jersey 07932 www.ascovalve.com Preventive Maintenance S Keep the medium flowing through the valve as free from dirt and foreign material as possible. S Periodic exercise of the valve should be considered ifambient or fluid conditions are such that corrosion, elastomer degradation, fluid contamination build up, orother conditions that could impede solenoid valve shifting are possible. The actual frequency of exercise necessarywilldependonspecificoperatingconditions. Asuccessful operating history is the best indication of a proper interval between exercise cycles. S Depending on the medium and service conditions, periodic inspection of internal valve parts for damage or excessive wear is recommended. Thoroughly clean all parts. If partsare worn or damaged, install a complete rebuild kit. Causes of Improper Operation S Incorrect Pressure:Check valve pressure. Pressure to valve must be within range specified on nameplate. S Excessive Leakage:Disassemble valve and clean all parts. If parts are worn or damaged, install a completeASCO Rebuild Kit. Valve Disassembly WARNING: To prevent the possibility of death, serious injury or property damage, turn off electricalpower, depressurizevalve, extinguishall open flames and avoid any type of sparking or ignition. Vent hazardous or combustiblefluid toa safe area before servicing the valve. NOTE: DeterminevalveconstructionAC(Figure1onpage 3) or DC (Figure 2 on page 4) then proceed as follows: 1. Remove solenoid enclosure, see separate installation and maintenance instructions. 2. For AC Construction, unscrew solenoid basesub---assembly. ForDCConstruction, unscrewsolenoid base sub---assembly with special wrench adapter provided in ASCO Rebuild Kit. For wrench adapteronly, order kit No.K218---949. NOTE: For alternate type open end wrench, order kit No.K168---146---1 which is available for solenoid base sub---assembly removal or replacement. 3. Remove bonnet screws, valve bonnet, bonnet gasket, core/diaphragm sub---assembly and body gasket. 4. Allparts are nowaccessible to clean or replace. If parts arewornordamaged,installacompleteASCORebuild kit. Valve Reassembly 1. Lubricate bonnet gasket and body gasket with a light coat of DOW CORNINGr 200 Fluid lubricant or an equivalent high---grade silicone fluid. 2. ApplyalightcoatofTFL50r Dry Lube to: S Valve seat S Valve body flange where diaphragm assembly contacts the valve body and body gasket. S Internal surface of valve bonnet where diaphragm assembly contacts bonnet when valve is in the energized (open position). IMPORTANT: If valve has been disassembled for inspection and cleaning only and a Rebuild Kit is not being installed, lubricate the following with TFL 50r Dry Lube: S Diaphragm assembly on both sides. S Main disc base of core/diaphragm sub---assembly. S Pilotdiscatbaseofcoreassembly. CAUTION: Do not distort hanger spring between core assembly and diaphragm assembly when lubricating pilotdisc. 3. Replace body gasket and core/diaphragm sub---assembly with closing spring attached. Locate bleed hole incore/diaphragm sub---assembly approximately 30_from the valve inlet. 4. Replace valve bonnet and bonnet screws (6). Torque screws in a crisscross manner to 100 ±10 in---lbs [11,3 ±1,1Nm]. 5. For AC construction, replace bonnet gasket and solenoid base sub---assembly. Torque solenoid base sub---assemblyto45±5ft---lbs[61,1±6,8Nm] ForDC construction refer to separate “Solenoid Installation and Maintenance Instructions” for lubrication instructions; then install bonnet gasket, housing and solenoid base sub---assembly. Torque solenoid base sub---assembly to 30 ± 5 ft---lbs [40,7 ± 6,8 Nm]. 6. Replace solenoid (see separate instructions) and make electrical hookup. WARNING: To prevent the possibility of death, serious injury or property damage, check valve for proper operation before returning to service. Also perform internal seat and external leakage tests with a nonhazardous, noncombustible fluid. 7. Restore line pressure and electrical power supply to valve. 8. After maintenance is completed, operate the valve afew times to be sure of proper operation. A metallic click signifies the solenoid is operating. ORDERING INFORMATION FOR ASCO REBUILD KITS Parts marked with an asterisk (*) in the exploded views are supplied in Rebuild Kits. D When Ordering Rebuild Kits for ASCO Valves, order the Rebuild Kit number stamped on the valve nameplate. + If the number of the kit is not visible, order by indicating the number of kits required, and the Catalog Number and Serial Number of the valve(s) for which they are intended. Page 3 of 4I&M No.V5996R6 EASCO Valve, Inc.R 50 Hanover Road, Florham Park, New Jersey 07932 www.ascovalve.com Torque Chart Part Name Torque Value Torque Value in Newton--Meters Solenoid Base Sub---Assembly 45 ± 5 ft. --- lbs 61,1 ± 6,8 Bonnet Screws 100 ± 10 in---lbs 11,3 ±1,1 solenoid basesub---assembly bonnet gasket valve bonnet valve body core/diaphragmsub---assembly CAUTION Do not damage valveseat in any manner bonnet screw Locate bleed hole incore/diaphragm sub---assembly approximately30 from valve inlet° bleed hole body gasket Indicates parts suppliedin ASCO Rebuild Kit. Figure 1. Series 8215 valves without solenoid, AC Construction. I&M No.V5996R6Page 4 of 4 EASCO Valve, Inc.R 50 Hanover Road, Florham Park, New Jersey 07932 www.ascovalve.com Torque Chart Part Name Torque Value Torque Value in Newton--Meters Solenoid Base Sub---Assembly 30 ± 5 ft --- lbs 40,7 ± 6,8 Bonnet Screws 100 ± 10 in---lbs 11,3 ±1,1 Open end wrenchavailable forsolenoid basesub---assembly(order no.K168---146---1) wrenching flat solenoid basesub---assembly bonnet gasket valve bonnet core/diaphragmsub---assembly body gasket valve body bleed hole bonnet screw housing CAUTIONDo not damage valveseat in any manner 1/2 NPT conduitconnectionI Locate bleed hole incore/diaphragm sub---assembly approximately30 from valve inlet° Pin holes for specialwrench adapter suppliedin ASCO Rebuild Kit.For wrench adapter onlyorder no.K218---949(standard wrench) Indicates parts suppliedin ASCO Rebuild Kit. Figure 2. Series 8215 valves without solenoid, DC Construction.