Jerguson Series 20 Liquid Level Gages Brochure

®Specialists In Liquid Level IndicationA Division Of The Clark-Reliance CorporationSection: J100Bulletin: J100.09Date: 1/1/99Supercedes: 20PRESSURE / TEMPERATURE RATINGS (PSIG) Note: Flanged gages are derated to flange rating.A RUGGED FLAT GLASS GAGE FORMEDIUM PRESSURE APPLICATIONS• Tempered Borosilicate Glass conforming to BS3463, JIS B8211,DIN 7080 and DIN 7081• All Gages are Hydrostatically Tested to 1 1/2 times the rated pressureat 100° F (38° C) • Wetted Parts Conform to NACE MR-01-75• All Parts are ASTM Grade and listed in ANSI 31.3• Recessed Gasket Seat in Chamber and Cover• Covers are Shrouded to Protect the Glass EdgesStandard construction includes a one-piece chamber machined frombar, forged steel covers, tempered glass, alloy steel bolts and nuts. Therecessed gasket seats aid in positioning and retaining the gasket.Series 20 gages are available in a wide variety of materials to meetspecific applications. Accessories available include: illuminators, non-frosting extensions, support brackets and insulation jackets.GLASS LIQUID LEVEL GAGESSERIES 20MEDIUM PRESSUREFM°F °C 1 2 3 4 5 6 7 8 9 100 38 3270 3140 3000 2880 2750 2630 2510 2390 2250200 93 3090 2970 2860 2740 2620 2500 2380 2260 2150300 149 2900 2790 2670 2560 2450 2340 2220 2110 2000400 204 2700 2600 2490 2380 2270 2170 2060 1950 1850500 260 2510 2410 2305 2205 2100 2000 1900 1800 1700600 316 2285 2190 2100 2010 1915 1820 1730 1640 1550REFLEX GAGEGlass SizeSATURATED STEAM RATING 300 WSP°F °C 1 2 3 4 5 6 7 8 9100 38 2000 1850 1750 1600 1500 1350 1250 1100 1000200 93 1900 1780 1660 1550 1440 1300 1175 1060 950 300 149 1770 1660 1550 1450 1330 1220 1100 1000 900 400 204 1675 1575 1470 1350 1250 1150 1050 925 850 500 260 1530 1450 1350 1250 1150 1050 950 850 750600 316 1350 1275 1180 1100 1010 925 850 750 675TRANSPARENT GAGEGlass SizeSATURATED STEAM RATING WITH MICA600 600 600 600 550 500 450 400 350For Temperature above 600° F (316° C) Aluminosilicate Glass must be used.Series R-20, shown withJerguson gage valvesSeries T-20Specify Jerguson - All Gages are NOT Created EqualLiquid Level Gages and Valves for the Power and Process IndustriesSpecify Gage Assemblies by the Figures BelowFig.1Nos. 63,143,73BL,(93)Nos. 63,143,73BL,(93)Nos. 64,144,74BL,(94)Nos. 64,144,74BL,(94)Nos. 66,146,76BLNos. 67,147,77BLNos. 146, 66 & 76BLNos. 147, 67 & 77BLFig.2 Fig.3Fig.4Fig.5Fig.6 Fig.7 Fig.8% of Rating 100% 90% 50%Chamber Material Carbon Steel, Stainless Steel Monel BrassSeries 316 or 316LGasketing Bonded Compressed Fibers Pure Teflonor Teflon Glass Filled Neoflon CTFE (Shields) APPROVED MODELSAVAILABLE.in mm in mm lbs Kgs lbs Kgs11 3 3/4 95 5 1/4 133 8 3.6 10 4.512 4 3/4 121 6 1/4 159 9 4.1 14 6.413 5 3/4 146 7 1/4 184 11 5.0 17 7.714 6 3/4 171 8 1/4 210 12 5.5 19 8.6 15 7 7/8 200 9 3/8 238 14 6.4 21 9.516 9 1/8 232 10 5/8 270 16 7.3 24 10.917 10 1/4 260 11 3/4 298 18 8.2 27 12.318 11 7/8 302 13 3/8 340 20 9.1 30 13.619 12 5/8 321 14 1/8 359 21 9.5 32 14.523 13 330 14 1/2 368 22 10.0 33 15.0 24 15 381 16 1/2 419 25 11.4 38 17.325 17 1/4 438 18 3/4 476 28 12.7 43 19.526 19 3/4 502 21 1/4 540 32 14.5 49 22.327 22 559 23 1/2 597 35 15.9 54 24.528 25 1/4 641 26 3/4 679 40 18.2 61 27.729 26 3/4 679 28 1/4 718 43 19.5 64 29.136 30 3/8 772 31 7/8 810 48 21.8 73 33.237 33 3/4 857 35 1/4 895 53 24.1 80 36.438 38 5/8 981 40 1/8 1019 60 27.3 92 41.839 40 7/8 1038 42 3/8 1076 64 29.1 97 44.147 45 1/2 1156 47 1194 71 32.3 107 48.648 52 1321 53 1/2 1359 80 36.4 122 55.549 55 1397 56 1/2 1435 85 38.6 129 58.657 57 1/4 1454 58 3/4 1492 88 40.0 134 60.958 65 3/8 1661 66 7/8 1699 100 45.5 152 69.159 69 1/8 1756 70 5/8 1794 106 48.2 161 73.268 78 3/4 2000 80 1/4 2038 120 54.5 187 85.069 83 1/4 2115 84 3/4 2153 127 57.7 196 89.178 92 1/8 2340 93 5/8 2378 140 63.6 221 100.579 97 3/8 2473 98 7/8 2511 148 67.3 230 104.588 105 1/2 2680 107 2718 160 72.7 254 115.589 111 1/2 2832 113 2870 169 76.8 265 120.5Glass Liquid Gages Series 20 Medium PressureSect.XSizeVisibleRangeOverallLengthApproximate WeightReflex, R-20 Transp.,T-20Series R-20 Series T-20SERIES 20 SPECIFICATIONSSECTION LENGTHS:Gage sections are available in nine standard glass sizes. Longer sizes areconstructed with multiple vision slots in acontinuous solid bar chamber.CONNECTIONS:Standard connections are at top and bottom and are 1/2 or 3/4 NPT female.Optional connections are available, suchas socket weld, flanged or close hook-up(side/side).LIQUID CHAMBER:Machined from bar stock. The gasketseat is recessed to allow lateral supportand facilitate positioning.COVERS:Forged carbon steel is standard.Optional materials are available.The cushion gasket seat is recessed.BOLTS & NUTSAlloy steel is standard, A193 B7 andA194 2H. Optional materials are available. All steel fasteners are “blackoxide” treated to prevent rust.GLASS:Tempered Borosilicate is used to 600° F(316°). Aluminosilicate is used to 800°(427° C). Transparent glass may be protected from corrosive media with micaor Neoflon CTFE shields.GASKETS:Standard gaskets are precision die cut inproprietary Jerguson dies.FINISH:All steel parts are finish coated prior toassembly. Stainless steel is not coated.VALVES:Use of Jerguson gage valves is strong-ly recommended. Standard featuresinclude safety ball checks which helpprevent loss of product and physicalinjury in the event of failure.JERGUSON® GAGE AND VALVE JERGUSON® GAGE AND VALVE A Division of The Clark • Reliance® Corporation A Division of The Clark • Reliance® Corporation13200 North Promenade • Stafford, TX 77477 USA 16633 Foltz Industrial Parkway • Strongsville, OH 44136 USATelephone: (281) 240-4243 Fax: (281) 240-7299 Telephone: (440) 572-1500 Fax: (440) 238-8828NO. 60 SERIES VALVESSpecial Connections (extra charge)No. 60 Series Valves can be furnished upon request withFlanged, Socket Welding, Solid Shank(non-union) andSpherical Union Connections.The use of Spherical Unions oninlets and outlets with top and bottom connected gages is par-ticularly valuable when the vessel connections are not per-fectly parallel.This construction will compensate for up to 10°misalignment of vessel tapping in any direction from the per-pendicular axis and up to plus or minus 3/4" from mean centers.The same compensation may be had on side connected gagesusing single spherical tailpieces on the outlet connections.MaterialsNo. 60 Series Valves have steel bodies and malleable ironhandwheels. Long life is assured by the use of stainless steelfor the seat, stainless steel for the stem, and stainless steelball check.Roughing DimensionsTo determine maximum space available for gage, deduct fromcenter to center dimension:3 1/2" on No. 63, 66 5 7/8" on No. 64, 67Note A. 3/4" dimension applies to all 1/2" N.P.T. end connectedReflex and Transparent gages except L-10 which is 1 1/4".Note B. To determine overall length of 1/2" I.P.S. nipples add 7/8"to distance between gage and valve.For side connected gages:Refer to to bulletin on gage for cen-ters. Straight valves will have equal centers. Offset valve cen-ters will be 1 3/4" more (offset ouside gage centers) or less (off-set inside gage centers).Standard ConnectionsVessel: 3/4" N.P.T.Male adjustableGage: 1/2" N.P.T. FemaleVent: 1/2" N.P.T. FemaleDrain:Optional ConnectionsVessel: 1/2" N.P.T. Male or Female3/4" N.P.T. FemaleGage: 3/4" N.P.T. Female1/2" or 3/4" N.P.T. Male unionon 64 and 67 valvesBackseating Stem: When back-seating stem is backed out to its limitthe knob on the stem seats againstthe sleeve which protects the pack-ing from the fluid.Quick Closing: Quick-closing valvestems with levers for cahin operation.Exclusive equalizing plate assurespositive closing of both valves.Stems have quadruple thread for fullclosing or opening in 1/4 turn.Bleed Fitting: A bleed fitting isavailable making it possible tobleed pressure from the valve andconnected gage without breakingany threaded connections. Thebleed fitting is designed so its stemcannot be withdrawn accidentally.It is tapped for 1/8" N.P.T. discharge.Downstream Ball Check: No. 67.An additional safety feature in thebottom valve of a top and bottom con-nected assembly is an optional ballcheck on the downstream side of thebottom valve seat.This arrangementshuts off the flow of liquid in case offracture of the instrument of con-necting piping and eliminates theupsream ball in the bottom fitting. A1/2" male drain is standard.A cap maybe furnished on request.EFFECT OF SPHERICAL UNIONBACKSEATING STEM BLEED FITTINGJERGUSON® GAGE AND VALVE JERGUSON® GAGE AND VALVE A Division of The Clark • Reliance® Corporation A Division of The Clark • Reliance® Corporation13200 North Promenade • Stafford, TX 77477 USA 16633 Foltz Industrial Parkway • Strongsville, OH 44136 USATelephone: (281) 240-4243 Fax: (281) 240-7299 Telephone: (440) 572-1500 Fax: (440) 238-8828