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Summary of Contents for Protectoseal 30 Series
- Page 1 Installation & Maintenance Guide PROTECTOSEAL SERIES NO. 30 TANK BLANKETING VALVE PROTECTOSEAL 225 Foster Ave., Bensenville, IL 60106-1690 630.595.0800 630.595.8059 ® Safety Without Compromise info@protectoseal.com www.protectoseal.com...
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Page 2: Table Of Contents
PROTECTOSEAL SERIES NO. 30 Table of Contents TANK BLANKETING VALVE Installation, Start-up & Shut-Down Placement ..........1 Start-Up . - Page 3 Installation & Maintenance Guide PROTECTOSEAL SERIES NO. 30 TANK BLANKETING VALVE Some of the terms used in this manual are defined below: Definition of Terms Conservation Vent: A device which is connected to a storage tank and regulates the pressure therein. Conservation vents may provide pressure relief, vacuum relief, or both.
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Page 4: Placement
Installation & Maintenance Guide PROTECTOSEAL SERIES NO. 30 Page 1 TANK BLANKETING VALVE INSTALLATION The blanketing valve should be placed on top of the storage tank with its outlet connected via a short run of pipe to the top of the tank. A second line runs from the sense port of the Placement valve to a separate connection on the tank. -
Page 5: Start-Up
PROTECTOSEAL SERIES NO. 30 Installation & Maintenance Guide Page 2 TANK BLANKETING VALVE condensate could not drain into the valve. ⁄ " O.D. tubing or larger should be used to ensure that there is not a pressure drop from the tank to the valve. This size line is also... -
Page 6: Shut-Down
Except where noted, these instructions apply also to units with other inlet and outlet connections. Protectoseal O-rings and gaskets are available from Protectoseal. See Table 6 on page 09 for soft goods kits which can be ordered. - Page 7 PROTECTOSEAL SERIES NO. 30 Installation & Maintenance Guide Page 4 TANK BLANKETING VALVE ■ DIAPHRAGM CASE (See Fig. 4) Remove the eight (8), #11 bolts, #13 nuts, and #4 lock washers. Carefully pull up the upper case assembly. Reach under the case to hold the #6 set spring in position while pulling the case up so that the spring and the #5 upper anchor do not fall over.
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Page 8: Reassembly
Installation & Maintenance Guide PROTECTOSEAL SERIES NO. 30 Page 5 TANK BLANKETING VALVE When reassembling the blanketing valve, be sure to replace any worn or damaged O-rings and gaskets. Reassembly ■ MAIN VALVE (See Fig. 6) Before reassembling the main valve, the #28 and #29 O-rings should be lubricated with an appropriate lubricant. -
Page 9: Blanketing Valve
PROTECTOSEAL SERIES NO. 30 Installation & Maintenance Guide Page 6 TANK BLANKETING VALVE Fig. 4 Blanketing Valve Qty. Description Qty. Description Part No. Hex Screw, - 16 UNC x Set Screw Gasket 20-18C-* ⁄ ⁄ Jam Nut, - 24 UNF... -
Page 10: Diaphragm Assembly
Installation & Maintenance Guide PROTECTOSEAL SERIES NO. 30 Page 7 TANK BLANKETING VALVE Fig. 5 Diaphragm Assembly (Item #9) Qty. Description Part No. Lower Anchor Lock Washer ⁄ " Plate Diaphragm 20-18A-107 Gasket 20-18B-107 Stop... -
Page 11: Main Valve Assembly
PROTECTOSEAL SERIES NO. 30 Installation & Maintenance Guide Page 8 TANK BLANKETING VALVE Fig. 6 Main Valve Assembly (Item #16) Qty. Description Part No. O-Ring 20-R115-* Upper Plug ✢ O-Ring 20-R118-* O-Ring 20--R109-* O-Ring 20-R112-* Poppet ✢ Poppet Spring Spring Pin Lower Plug Assembly ✢... - Page 12 Installation & Maintenance Guide PROTECTOSEAL SERIES NO. 30 Page 9 TANK BLANKETING VALVE Model No. Code* Material Part No. Suffix (†) Table 5 O-Ring & Gasket Codes & Buna-N -101 Neoprene -100 Suffixes Viton® -118 EPDM -136 Kalrez®** -140 Chemraz®** -138 * Digit #7 of part number.
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Page 13: Recommended Test Set-Up
PROTECTOSEAL SERIES NO. 20 PROTECTOSEAL SERIES NO. 30 Installation & Maintenance Guide Page 10 TANK BLANKETING VALVE TANK BLANKETING VALVE Fig. 7 Recommended Test Set-Up... -
Page 14: Accessories
The following maintenance guidelines apply to a supply line filter that has been purchased as an option from The Protectoseal Company. If your system includes some other supply line filter, please contact the manufacturer of the filter for maintenance recommendations. -
Page 15: Pressure Gauges
Replacement gauges can be ordered if necessary. The sense line gauge supplied by Protectoseal has a working pressure of up to 15 psig and so should not be damaged by fluctuations in tank pressure. Damage to the supply pressure gauge may indi- cate that the blanketing gas supply system was overpressurized at some point. -
Page 16: Integral Purge System
Installation & Maintenance Guide PROTECTOSEAL SERIES NO. 30 Page 13 TANK BLANKETING VALVE outlet, and to a much lesser extent, the sense line will be purged with blanketing gas any time that the blanketing valve opens. The integral purge, however, flows continuously and also lessens the existence of standing vapors from the stored material when the blanketing valve is closed. - Page 17 PROTECTOSEAL SERIES NO. 30 Installation & Maintenance Guide Page 14 TANK BLANKETING VALVE higher flows create only the problem of high supply gas usage. The purge meter has a percent scale. The flow indicated will depend upon the blanketing gas supply pressure, the molecular weight of the blanketing gas, and (to a lesser degree) the operating temperature.
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Page 18: Field Test Accessories
Installation & Maintenance Guide PROTECTOSEAL SERIES NO. 30 Page 15 TANK BLANKETING VALVE Use tweezers to pull the float stop out from the top of the tube and then carefully tilt the tube to remove the float. Handle the float with care to avoid nicking or scratching it. - Page 19 NOTES REGARDING THE SET POINT AND VALVE OPERATION: 01. The set point of the Protectoseal Series 30 Blanketing Valve is specified as the pres- sure at which the main valve opens.
- Page 20 Installation & Maintenance Guide PROTECTOSEAL SERIES NO. 30 Page 17 TANK BLANKETING VALVE ■ TESTING - LOW PRESSURE OR VACUUM SET POINT TEST KIT If the unit has set point range A (-0.1 to 3.0 inches W.C.), then this section applies. Follow these steps to determine the blanketing valve’s opening and resealing points (See Fig.
- Page 21 PROTECTOSEAL SERIES NO. 30 Installation & Maintenance Guide Page 18 TANK BLANKETING VALVE If the unit is connected to the system: 01. Open the sense line shut-off valve. 02. Turn the handle on the 3-way valve back to its original position to open the path from the blanketing valve outlet to the tank and shut-off the auxiliary port.
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Page 22: Higher Pressure Set Point Field Test Kit
Installation & Maintenance Guide PROTECTOSEAL SERIES NO. 30 Page 19 TANK BLANKETING VALVE Fig. 11 Higher Pressure Set Point Field Test Kit Fig. 11 Higher Pressure Set Point (above 3.0 to 69.2 inches W.C.) Field Test Kit With Outlet Line 3-Way Valve & Sense Line Shut-off Valve... -
Page 23: Low Pressure Set Point Field Test Kit
PROTECTOSEAL SERIES NO. 30 Installation & Maintenance Guide Page 20 TANK BLANKETING VALVE Fig. 12 Low Pressure Field Test Kit Fig. 12 Low Pressure or Vacuum Set Point (-0.1 to 3.0 inches W.C.) Field Test Kit Without Outlet Line 3-Way Valve or Sense Line Shut-off Valve... -
Page 24: The Blanketing Valve Does Not Open At All
Installation & Maintenance Guide PROTECTOSEAL SERIES NO. 30 Page 21 TANK BLANKETING VALVE Possible problems which could be encountered with a blanketing valve are listed below. Possible sources of the problems along with suggestions for investigating the problems are Troubleshooting also included. -
Page 25: The Blanketing Valve Leaks Continuously
PROTECTOSEAL SERIES NO. 30 Installation & Maintenance Guide Page 22 TANK BLANKETING VALVE 2.4 There is a leak from the sense diaphragm chamber. ✔ Leak test the diaphragm case around the perimeter and around the bolts. ✔ Leak test around the #15 gasket between the lower case and the valve body. -
Page 26: Before The Blanketing Valve Closes #6 The Vacuum Vent Or Other Vacuum Relief Device Opens
Installation & Maintenance Guide PROTECTOSEAL SERIES NO. 30 Page 23 TANK BLANKETING VALVE ■ PROBLEM 6: The vacuum vent or other vacuum relief device opens. 6.1. The blanketing valve set point is below (more negative than) the vacuum vent set point. - Page 27 V30/6 (10/2019) The Protectoseal Company...
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