WATER GAUGES AND LIQUID LEVEL GAUGES COMPLETE INFORMATION FOR SELECTION, ORDERING, INSTALLATION AND USE MADE IN THE USA

Water Gauges and Liquid Level Gauges 2 Customer Service 1-704-841-6000 Table of Contents What Is A Water Gauge? . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 How To Select A Water Guage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4 Do’s and Don’t’s . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Conbraco Water Gauges And Liquid Level Gauges . . . . . . . . . . . . . . . .6-7 Water Gauges Liquid...

Water Gauges and Liquid Level Gauges 3 www.apollovalves.com WHAT IS A WATER GAUGE? A water gauge is a device that allows the liquid level in a vessel to be visually inspected. Water gauges are required by the ASME Boiler and Pressure Code on steam boilers, and are also useful in many other applications, such as monitoring the amount of oil in an oil tank. THINGS TO REMEMBER Care must be given to ensure the proper selection of a water gauge. Special attention must be given to temperature/ pressure requirements and to the service media (i.e. water, steam, oils, chemical agents, etc.). Some items...

4 Customer Service 1-704-841-6000 2. Select Non-Automatic, Automatic, or ASME Automatic: • use automatic (horizontally seating) or ASME automatic (vertically rising to seat in lower valve body) ball checks where available to minimize the risk of personal injury and/or property damage in the event of gauge glass breakage. The sudden rush of steam and water seats the balls, thereby shutting off the escape of steam and water. There will however be slight leakage as required by certain codes. 3. Select a handwheel style: • use aluminum handwheels for durability. • use plastic (composition) handwheels...

WATER GAUGE DO’S AND DON’T’S DO NOT’s DO NOTuse glass if it contains any scratches, chips, or any other visible signs of damage. DO NOTreuse any tubular glass or glass packings. DO NOTsubject gauge glass to bending or torsional stresses. DO NOTover tighten glass packing nuts. DO NOTallow glass to touch any metal parts. DO NOTexceed the recommended pressure of the gauge or gauge glass. DO NOTclean the gauge or gauge glass while pressurized or in operation. DO’s DO verify proper gauge has been supplied. DO examine gauge glass and packings carefully for damage before installation. DO install protective...

6 Customer Service 1-704-841-6000 Conbraco Water Gauges And Liquid Level Gauges Water Gauges and Liquid Level Gauges 20-100 Series Standard Pattern 20-150 Standard Pattern Automatic 20-200 Series Heavy Pattern 20-250 Heavy Pattern Automatic 20-300 Series 20-350 Series Automatic 20-400 Series Left Hand Illustrated 20-410 Series Left Hand Only 20-601 & 602 Series 20-604 & 20-605 Series

7 www.apollovalves.com Water Gauges and Liquid Level Gauges Conbraco Water Gauges And Liquid Level Gauges 20-700 Series 20-800 Series 23-450 Series ASME Automatic 23-600 Series 24-300 Series 24-600 Series 25-200 Series Heavy Pattern 25-400 Series 25-500 Series Automatic 25-600 Series

10 Customer Service 1-704-841-6000 Rough Bronze Water Gauges * Automatic Teflon® is a registered trademark of DuPont. Water Gauges and Liquid Level Gauges Series Rating (subject to limitation of gauge glass) 20-100 125 psig @ 3500F, 300 psig @ 1000F 20-150 125 psig @ 3500F, 300 psig @ 1000F 20-200 200 psig @ 4000F, 400 psig @ 1000F 20-250 200 psig @ 4000F, 400 psig @ 1000F 20-300 200 psig @ 4000F, 400 psig @ 1000F 20-350 200 psig @ 4000F, 400 psig @ 1000F 20-400 125 psig @ 3500F, 300 psig @ 1000F 20-601, 602 250 psig @ 4000F, 500 psig @ 1000F 20-604, 605 200 psig @ 4000F, 400 psig @ 1000F 20-700...

11 www.apollovalves.com Standard Glass Standard Glass Cat. No. Pipe Size O.D. & length Glass Seal Stem Packing Handle Type Wt./100 23-401 1/2 5/8 x 12 PTFE w/Hypalon® Braided PTFE w/Aramid aluminum high pressure 385 23-402 1/2 5/8 x 12 PTFE w/Hypalon® Braided PTFE w/Aramid composition high pressure 385 23-404 3/4 3/4 x 16 PTFE w/Hypalon® Braided PTFE w/Aramid aluminum high pressure 450 23-405 3/4 3/4 x 16 PTFE w/Hypalon® Braided PTFE w/Aramid composition high pressure 450 23-450** 1/2 5/8 x 12 PTFE w/Hypalon® Braided PTFE w/Aramid aluminum high pressure 390 23-451** 1/2 5/8 x 12 PTFE w/Hypalon®...

12 Customer Service 1-704-841-6000 Water Gauges and Liquid Level Gauges Rough Bronze Liquid Level Gauge Polished Bronze Water Gauge **ASME Automatic Hypalon® is a registered trademark of DuPont. Series Rating (subject to limitation of gauge glass) 24-300 250 psig @ 4000F, 500 psig @ 1000F 24-350 250 psig @ 4000F, 500 psig @ 1000F 24-600 250 psig @ 4000F, 500 psig @ 1000F 24-650 250 psig @ 4000F, 500 psig @ 1000F 24-750 250 psig @ 4000F, 500 psig @ 1000F 24-850 250 psig @ 4000F, 500 psig @ 1000F Standard Glass Standard Glass Cat. No. Pipe Size O.D. & length Glass Seal Stem Packing Handle Type...

14 Customer Service 1-704-841-6000 Water Gauge Repair Kits The standard repair kits contain glass packing, stem packing, friction washers, seat washers, and drain washer applicable to the particular valve. Three types of glass packing, EPDM rubber, Hypalon®, and Virgin Teflon®, are included in the standard repair kit. For oil related service, Fluorelastomer (Viton®) glass gasket sets are available. For severe applications, graphite glass gaskets and stem packing sets are available for each model. Repair Kit Ordering Information Example: 20-001 - 01 DESIGNATION KIT TYPE KIT NUMBER 20-00 = Water...

15 www.apollovalves.com Water Gauges and Liquid Level Gauges 5. Carefully remove the gauge glass from the upper fitting. Remove all glass packing, packing nuts, washers and packing glands, noting their positions on the glass. 6. Clean and inspect gauge glass and fittings for any wear, erosion, cracks or debris. Any damaged components must be replaced. 7. If it is desired, the stem packing can be replaced by removing the handle(s) then the stem packing nut. Remove old packing and stem packing washer if applicable. Install new packing in stem packing nut and reuse stem packing washer as applicable....