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TABLE OF CONTENTSPage• Quiet Check Valves ......................................................................................................... 100• Y-Check Valves ................................................................................................................ 102• Butterfly Check Valves ................................................................................................... 104• Diaphragm Check Valves ............................................................................................... 107• In-Line Adjustable Spring Check Valves ....................................................................... 108• Backwater Valves ............................................................................................................ 110• Y-Strainer Valves .............................................................................................................112• Gauge Guards .................................................................................................................. 115• Basket Strainers ..............................................................................................................116• Suction Strainers ............................................................................................................. 118• T-Style Cartridge Filters .................................................................................................. 120• General Installation .........................................................................................................122• Solvent Cement Welded Joints ...................................................................................... 123• Threaded Connections ................................................................................................... 125• Flanged Connections ...................................................................................................... 126• Valve Service & Replacement Kits ................................................................................ 127• Ball Valve Troubleshooting Guide ................................................................................. 134Part II - Actuated Thermoplastic Valves• Actuated Thermoplastic Valves ..................................................................................... 137• Spears ® Actuated Valve Packages ............................................................................... 138• Electro Series Actuated Ball Valves .............................................................................. 139• Premium Actuated Valve Packages ............................................................................... 142• Electric Actuated True Union Ball Valves ..................................................................... 143• Pneumatic Actuated True Union Ball Valves ................................................................ 144• Electric Actuated Butterfly Valves ................................................................................. 145• Pneumatic Actuated Butterfly Valves ............................................................................ 146• Electric Actuated Diaphragm Valves ............................................................................. 147• Unitized Actuated Diaphragm Valves - Pneumatic with Plastic Housing .................. 148• Pneumatic Actuated Diaphragm Valves ........................................................................ 149• Electric Actuator Options & Accessories ..................................................................... 150• Pneumatic Actuator Options & Accessories For Ball Valves & Butterfly Valve ....... 155• Pneumatic Actuator Options & Accessories For Diaphragm Valves ......................... 158• Appendix A - Actuation Terminology & Definitions• Appendix B - Premium Actuated Valve Part Number Selection• Appendix C - Custom Actuated Valve Questionnaires• Limited Lifetime Warranty ................................................................ Inside Back Coverii
INTRODUCTION TO SPEARS ® VALVESSince 1969, Spears ® Manufacturing Company has developed high quality thermoplastic piping system components tobetter meet industry needs. Spears ® thermoplastic valves have been developed through years of product improvementtesting, combined with the latest in computer aided engineering and manufacturing technology. Today, Spears ® valvesare recognized for their quality, reliability and long service life. Backed by the best in customer service and productavailability, Spears ® valves are the first choice for use in a wide variety of applications, including Industrial &Chemical Processing, Turf & Irrigation, Pool & Spa, and numerous Original Equipment Manufacture products.Valve Function BasicsBall ValvesBall valves derive their name from the on/off function accomplished by means of a flow-controlling ball located inthe center of the valve body. A hole through the center of the ball (valve bore) connects the inlet and outlet sides ofthe valve for fluid stream transfer. The ball rotates 90° on an axis perpendicular to the fluid stream in order to blockflow in the “off” position. The ball is held in place between two valve seats, which serve as a “bubble tight” seal off,while providing lubrication during valve operation. Elastomer O-rings are used in the stem and seal carrier to preventfluid leakage. Pressure drop is virtually eliminated in the full-open position, since the valve bore is the same size asSchedule 80 system piping. The T-Style ball valve is a special configuration incorporating a Tee fitting at one end ofthe valve. This design maintains close proximity of the valve to the fluid mainline to minimize “dead leg” of potentialfluid accumulation, where required by specific application.3-Way Ball Valves3-Way ball valves are “diverter” style ball valves that provide an additional port to redirect the fluid stream. Valveconfigurations are either vertical (bottom branch port) or horizontal (side branch port). Multiple ball-port options areavailable in which different hole patterns in the valve ball provide alternative paths to divert flow. These diverterstyle 3-Way ball valves have no shutoff on the branch ports.Check ValvesCheck valves are automatic valves that open with forward flow and close with reverse flow. Exact operation will varydepending on the type of check valve mechanism. These include a ball (Ball Check), a swinging disc (Swing Check), a“double disc” (Butterfly Check), a weighted plug (Y-Check), and spring assisted types of check devices. These includea spring assisted swinging disc (Spring Check) and a spring mounted linear disc (In-Line Spring Check). Regardlessof type, a check valve has a closure device positioned in the valve body between inlet and outlet so that the fluidstream is easily transmitted in the direction of flow, but is allowed to move against the check device in the event offlow in the reverse direction. Reversed flow is stopped or held in “check” by fluid backflow pressure which seats theclosure device against the valve body. Standard elastomer O-ring seals are used in all Spears ® Ball Check Valves andIndustrial Swing Check Valves. Utility Swing and Spring Check Valves, and Butterfly Check Valves use an elastomermembrane seal; In-Line Spring Check Valves and Y-Check valves use an elastomer seat. Spears ® Check Valves havebeen carefully engineered to minimize pressure drop and can be installed in either horizontal or vertical positions,within the limitations of the specific type of closure device. Ball Check Valves are well suited for general applicationsof fluids free from debris and entrained solids. Butterfly Check Valves have minimum space requirements and, alongwith Swing Check Valves, are better for use with fluids containing solids or debris. Swing Check Valves additionallyallow higher volume of fluid transmission. Industrial Swing Check models can be fitted with an optional counterbalance device to further control closing speed. The Utility Spring Check Valve (spring assisted Swing Check) aids invalve closing, while the In-Line Spring Check can be adjusted for resistance to opening pressure.Swing Check Ball ValvesSwing check ball valves are a special design that combines the basic function of a ball valve and a swing check valvefor use in general purpose applications where an in-line ball and check valve configuration is required.1
Page 1 and 2: SPEARS ® THERMOPLASTIC VALVES & AC
Page 3: TABLE OF CONTENTSPart I - Thermopla
Page 7 and 8: INTRODUCTION TO SPEARS ® VALVESISO
Page 9 and 10: MATERIALSIndividual Materials Overv
Page 11 and 12: MATERIALSTemperature Pressure De-ra
Page 13 and 14: TRUE UNION 2000 BALL VALVESOne of t
Page 16 and 17: TRUE UNION 2000 INDUSTRIAL 3-WAY BA
Page 18 and 19: TRUE UNION 2000 INDUSTRIAL 3-WAY BA
Page 20 and 21: TRUE UNION 2000 INDUSTRIAL TEE-STYL
Page 22 and 23: TRUE UNION 2000 INDUSTRIAL TEE-STYL
Page 24 and 25: TRUE UNION 2000 INDUSTRIAL BALL CHE
Page 26 and 27: TRUE UNION 2000 STANDARD BALL VALVE
Page 28 and 29: TRUE UNION BALL VALVES(REGULAR STYL
Page 30 and 31: TRUE UNION BALL CHECK VALVES(REGULA
Page 32 and 33: COMPACT 2000 BALL VALVESFeatures -
Page 34 and 35: COMPACT BALL VALVESSample Engineeri
Page 36 and 37: SINGLE ENTRY BALL VALVESSample Engi
Page 38 and 39: UTILITY BALL VALVESPVCCPVCSample En
Page 40 and 41: CWV BALL VALVESFeatures - PVC White
Page 42 and 43: CTS 1/4-TURN ANGLE SUPPLY STOPFeatu
Page 44 and 45: BALL VALVE ACCESSORIESTrue Union 20
Page 46 and 47: BALL VALVE ACCESSORIESAEBCFSplit-Nu
Page 48 and 49: BALL VALVE ACCESSORIESStem Extensio
Page 50 and 51: BALL VALVE ACCESSORIESMulti-Mount V
Page 52 and 53: BALL VALVE ACCESSORIESLow Profile A
Page 54 and 55:
BALL VALVE ACCESSORIESMini-Mount Co
Page 56 and 57:
LAB BALL VALVESSample Engineering S
Page 58 and 59:
NEEDLE VALVESFeatures - PVC, CPVC &
Page 60 and 61:
PLUG GATE VALVESFeatures - PVC, CPV
Page 62 and 63:
GATE VALVESFeatures - PVC, CPVCThis
Page 64 and 65:
GATE VALVESE234FE512 3 4 5 6 7 8112
Page 66 and 67:
GLOBE VALVESSample Engineering Spec
Page 68 and 69:
Y-PATTERN VALVESSample Engineering
Page 70 and 71:
WAFER BUTTERFLY VALVESSample Engine
Page 72 and 73:
BUTTERFLY VALVESStandard & True Lug
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BUTTERFLY VALVESPolypropyleneSample
Page 76 and 77:
BUTTERFLY VALVESSample Engineering
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BUTTERFLY VALVESReplacement Parts f
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BUTTERFLY VALVESC v Values & Operat
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BUTTERFLY VALVE ACCESSORIESLug Inse
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BUTTERFLY VALVE ACCESSORIES(VALVE N
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DIAPHRAGM VALVESFeatures - PVC, CPV
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DIAPHRAGM VALVES15141312Replacement
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DIAPHRAGM VALVESEDSpigot Diaphragm
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TEE - STYLE “ZERO DEAD-LEG” DIA
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INDUSTRIAL SWING CHECK VALVESReplac
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UTILITY SWING & SPRING CHECK VALVES
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COMPRESSION UTILITY SWING CHECK VAL
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TRUE UNION UTILITY SWING & SPRING C
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SUMP PUMP SWING CHECK VALVESFeature
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QUIET CHECK VALVEEliminates Noise i
Page 106 and 107:
Y-CHECK VALVESSample Engineering Sp
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BUTTERFLY CHECK VALVESFeatures - PV
Page 110 and 111:
BUTTERFLY CHECK VALVESReplacement P
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IN-LINE ADJUSTABLE SPRING CHECK VAL
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BACKWATER VALVESFeatures - PVC Gray
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Y-STRAINERSFeatures - PVC Gray, PVC
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Y-STRAINERS11 10121 2 3 4 5 6 7 8 9
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BASKET STRAINERSSample EngineeringS
Page 122 and 123:
SUCTION STRAINERSFeatures - PVCThe
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T-STYLE CARTRIDGE FILTERSFeatures -
Page 126 and 127:
GENERAL INSTALLATIONEase of install
Page 128 and 129:
SOLVENT CEMENT WELDED JOINTSStep 5:
Page 130 and 131:
FLANGED CONNECTIONSFlanges are used
Page 132 and 133:
VALVE SERVICE & REPLACEMENT KITSTru
Page 134 and 135:
VALVE SERVICE & REPLACEMENT KITSBut
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VALVE SERVICE & REPLACEMENT KITSInd
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BALL VALVE TROUBLESHOOTING GUIDESpe
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BALL VALVE TROUBLESHOOTING GUIDEStr
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SPEARS ® ACTUATED VALVE PACKAGESCh
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ELECTRO SERIES ACTUATED BALL VALVES
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PREMIUM ACTUATED VALVE PACKAGESTypi
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PNEUMATIC ACTUATED TRUE UNION BALL
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PNEUMATIC ACTUATED BUTTERFLY VALVES
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UNITIZED ACTUATED DIAPHRAGM VALVES
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ELECTRIC ACTUATOR OPTIONS & ACCESSO
Page 156 and 157:
Page 158 and 159:
Page 160 and 161:
PNEUMATIC ACTUATOR OPTIONS & ACCESS
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PNEUMATIC ACTUATOR OPTIONS & ACCESS
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ADDITIONAL ACTUATED VALVE CONFIGURA
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Appendix A - Actuation Terminology
Page 168 and 169:
Appendix B - Premium Actuated Valve
Page 170 and 171:
Page 172 and 173:
Page 174 and 175:
Page 176 and 177:
Page 178 and 179:
Appendix C - Ball Valve Actuation Q
Page 180 and 181:
Appendix C - Diaphragm Valve Actuat
Page 182 and 183:
NOTES
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NOTES
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NOTES
Page 188:
Watch forNEW PRODUCT SUPPLEMENTSfro
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