ML20116B920
| ML20116B920 | |
| Person / Time | |
|---|---|
| Site: | Fort Calhoun  |
| Issue date: | 10/20/1992 |
| From: | Gates W OMAHA PUBLIC POWER DISTRICT |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| LIC-92-312, NUDOCS 9211030117 | |
| Download: ML20116B920 (16) | |
Text
{{#Wiki_filter:_ _ _ _ - _ - _ I Omaha Public Power District 444 South 16th Street Mall Omaha, Nebraska 68102-2247 402/636-2000 October 20, 1992 LIC-92-312 U. S. Nuclear Regulatory Commission AlTN: Document Control Desk Mail Station Pl-137 Washington, DC 20555
Reference:
Docket No. 50-285 Gentlemen:
SUBJECT:
System Information for Auxiliary Feedwater Pump FW-54 Omaha Public Power District (0 PPD) is submitting information on the third Auxiliary feedwater pump (FW-54) at Fort Calhoun Station, as requested by OPPD's NRC/NRR Project Manager. is a " white paper" describing the modification that added FW-54, including design considerations, procedural guidance for intended use, and the current maintenance and testing schedule for FW-54 compared to the other two Auxiliary Feedwater pumps. A simplified flow diagram of FW-54 and auxiliary equipment is shown in Attachment 2. Attachment 3 is an exerpt from an OPPD System Description. This submittal is for information only and is not considered part of the current ~ licensing basis for Fort Calhoun Station. If you should have any questions, please contact me. Sincerely, NO <$ OJ W. G. Gates Division Manager Nuclear Operations WGG/tcm Attachment c: LeBoeuf, Lamb, Leiby & MacRae J. L. Milhoan, NRC Regional Administrator, Region IV R. P. Mullikin, NRC Senior Resident Inspector S. D. Bloom, NRC Project Manager l 9211030117 921020 PDR ADOCK 05000205 P PDR I i 45-5 u4 Empicymen Oppatunity
4-e LIC-92-312 Page 1 Fort Calhoun Station (FCS Third Auxilia,y feedwater Pump,) FW-54 Modification Request FC-88-017 Scope: Addition of an engine driven, non safety grade, non-seismic 300 gpm auxiliary feedwater (AFW) pump, Tag #FW-54, in the Turbine Building basement. Changes to ei ht air operated valves and two motor operated valves in the feedwater (FW and AFW systems, Addition of two thermal relief valves on the AFW piping between the e inboard and outboard AFW containment isolation valves This equipment is shown on the following P& ids: Auxiliary feedwater ll405-M-253 Sh 4 Fuel Oil ll405-M-262 Sh 1 Misc Drains and Chem. Feed ll405-M-265 Sh 1 Plant One-line Elec. System FIG 8.1-1 General Design Features: OPPD added a third auxiliary feedwater pump, Tag #FW-54, which is independent of 1 the existing FCS power sources and of the water supply for the existing safety _ i l related auxiliary feedwater pumps FW-6 (electric rr.ator driven) and FW-10 -(steam turbine driven). FM 6 and FW-10 are supplied by the safety grade Emergency Feedwater Storage Tank in Room 81 of the Auxiliary Building. FW-54 is a i centrifugal eight-stage unit driven by a diesel ennine. It is manually started either locally or from the control room. it can be used for normal startup or shutdown operations, or it can be used as a backup to the safety grade pumps during a.lant event. Specific features: A diesel engine (V-8 Caterpillar) Jackson 3 x 4 x 9B 8-stage model DVMX running at 1817 rpm drives a 1 to 2.08 ratio speed increaser to a Byron l pump (this pump is identical to FW-6, the electric motor driven AFW pump). The pump, driver and appurtenances are commercial grade. A four-hour endurancetestoftheengineandpumpatfullloadwasperformedbythe l vendor and witnessed by OPPD prior to shipruent to FCS, l The water source is the condensate storage tank (DW-48) located outdoors l along the Missouri River, diverse from the safety grade Emergency l Feedwater Storage Tank source for FW-6 and FW-10. The pump and engine are located in a 3 hour fire rated room with attendant e fire detection ar;d sprinkler coverage, Cooling water for the engine jacket water and speed increaser heat o exchangers is provided directly from the first stage of the pump.
LIC-92-312 Page 2 General Design Features: (continued) The fuel oil day tank is in the FW-54 pump r om. The fuel supply is shared with the auxiliary boiler fuel tank (F6-10). The fuel transfer pump is located in the Service Building. Engine pump auxiliaries (ventilation fans, battery charger, jacket water heater, fuel transfer pumn) are powered by a dedicated Motor Control Center (MCC-3C4C-3)fer switch transfers load to an engine-driven 480 volt, outsid the pump room. If the normal feed is lost, the automatic trans -12.46 kW generator. Hanual Start switches are installed remotely on CB-10/11 in the control e room and lecally at AI-114. A dedicated hydrazine metering ) ump and control loop is available to meter hydrazine into the discharge p' ping for start-up oxygen control. Regulatory and Design Inputs: In 1988, Fort Calhoun Station was one of seven plants with two AFW pumps. As part of OPPD's' response to Generic Issue 124, Auxiliary Feedwater System Reliability, the original two pump modeled in accordance with the guidance of (the Standard Review Plan (SRP).FW-4 The calculated reliability (mean) was 1.8 x 10 failuresperdemand,a value exceeding the SRP Section 10.4.9 criteria of 10 to 10' failures per 4 demand. A February 17, 1988 letter (LIC 89-955) from 0 PPD (W. C. Jones) to the NRC committed OPPD to installing a third auxiliary feedwater rump. NRC Letter of May 9,1988, " Resolution of Generic Issue 124, Auxiliary Feedwater System Reliability for the Fort Calhoun Station" stated "the staff concludes that the licensee's commitment to install a third AFW pump and consideration of the following additional enhancements will ensure appropriate AFWS reliability." One of the additicnal enhancements noted is "the four air-operated valves (HCV-1107A and B, and HCV-1108A and B that permit the AFW pumps flow to the steam generators are normally clos)ed and should open upon receipt of i i an AFWS initiation signal. Since there is a potential that the closed valves may fail to o en on demand, the licensee is requested to evaluate the merits of boti the normally open and normally closed valve configuration and adopt the more reliable configuration. A high degree of reliability of these discharge valves would alleviate the staff concerns raised in Generic Issues GI-122.1.a, b, and c, with respect to isoiition valve failure, and interruption-and recovery of AFW flow." l In response to this staff position, OPPD added accumulators and control L changes to the scope of the modification. These changes are included in the description of other changes on Pages 3 and 4. l I
9 LIC-92-312 Page 3 Regulatory and Design Inputsi (continued) Addition of a third auxiliary feedwater pump was incorporated into OPPD's Safety Enhancement Program as part of SEP Item 38. OPPD's Probabilistic Risk Assessment (PRA) group determined that the SRP calculated reliability noted previously was not based on the quality class of components. Therefore, availability of a non-safety grade third AFW pump would be a valid improvement of the calculated AFW reliability. Two other plants, Trojan and Davis-Besse, added non-safety grade third AFW pumps and obtained NRC acceptance. Early PRA input into the design recommended a water supply diverse from FW-19, the Emergency Feedwater Storage Tank (EFWST)ficant increase inthat supplies A pumps FW-6 and FW-10, in order to provide a signi reliability. As a result, Operations personnel requested that tti new pump be capable of resupplying FW-19, which requires refilling 8 hours after an accident. The new source was preferable to the fire water system, which was a backup if condensate or demineralized water were not available. Plant staff requested that a full flow test line for FW-6 and FW-10 be integrated into the EFWST fill line. FW-54 was not connected to existing automatic AFW actuation logic, providing manual starting control for Operations personnel. During the initial design phase of the third AFW pump, the unresolved safety issue of Station Blackout was being explored for plant-specific vulnerabilities. At that time, because use of FW-54 was considered necessary during station blackout, the engine mounted 480 volt generator, motor control center, and automatic transfer switch described earlier were incorporated into the design. Availability of FW-54 was later determined not to be necessary for Station Blackout considerations (
Reference:
OPPD Engineering Analysis 89-054 " Station Blackout Coping Assessment"). The design and installatice of the cump and appurtenances (though non-safety grade) were controlied by various Design Engineering and Plant Standing Orders. The following portions of 10CFR50 Appendix B apply to the installation and maintenance of this equipment: Control, gn-Control, Desi Instructions, Procedures and Drawings, Document Contr,1 of Special Processes, inspections, Test Control, Control of Test and Measuring Equipment, and Inspection, Test and Operating Status. Other changes: Pneumatic circuitry changes were made to HCV-Il05 and HCV-1106, main o These valv(es are in the " alternate flow path" for auxiliary feedwater if feedwater startup) regulating valves which have a backup safety function. the normal safety grade flow path is not available. Control changes now allow an operator to reopen HCV-1105 and HCV-1106 (after CIAS) Also, the and close-them after loss of instrument air up to 3 times in 8 hours. valves can be partially opened after CIAS closure if instrument air is available.
f L!C-92-312 Page 4 Other changes (continued): Accumulators were added to the (f ai.1-open) minimum flow recirculation valves on existing motor and steam driven AFW pumps, FW-6 and FW-10. On the existing AFW discharge piping to the steam generators, the inboard e and outboard containment isolation valves fail open upon loss of air or electrical signal, On the inboard (containment side) isolation valves, HCV-1107A and HCV-1108A, accumulators were added to allow 3 open/close cycles in 8 hours. On the outbeard valves, HCV-11078 and HCV-Il088, accumulators were also added. In addition, a pressure switch and pneumatic solenoid valve were added to each of the outboard valves to remove the Electrical / Pneumatic throttling components from the pneumatic circuit upon loss of instrument air, ensuring full use of the accumulator air for open/close operation of the control valves. Motor operated valves HCV-1385 and HCV-1386 are containment isolation valves on the main feedwater system. They receive a closure signal upon CIAS. If the " alternate flow path" for injecting AFW is needed, the bypass switches installed by the madification will allow reopening. All of the above features are operator selected. Control room annunciation denotes off-normal conditions for the valves. Thermal relief valves were added outside containment between the inboard and outboard AFW conteinment isolation valves to prevent over-pressurization of the exposed piping in containment due to a MSLB or LOCA. j Maintenance and Periodic Testing of FW-54 FW-54 is.ot safety related equipment and is not incorporated into the plant Technical Specifications. Pump availability is assured through inclusion in the plant preventive maintenance program. The following is a summary of currenthlanned maintenance and periodic testing in a matrix format comparing all three AFW Pumps. FW-6 (electric) FW-10 (steaml FW-54 (diesell Operability OP-ST-AFW-0004(M) OP-ST-AFW-0004(M) N/A (in recirculation) l Full Flow Test SE-ST-AFW-3005(Q) SE-ST-AFW-3006(Q) OP-PM-AFW-0004(M) Pump Bearing 011 WP000409(M) WP000412(M) OP-PM-AFW-0004(M) Check Vibration Analysis WP000411(Q) WP000906(Q) MM-PM-AFW-0002(Y)' (Pump) l l. Vibration Analysis WP000411(Q) WP00906(Q) MM-PM-AFW-0002(Y)' (Driver) Coupling Insp./Lub. WP000463(Y). N/A MM-PM-AFW-C;03(Y2)^ l I
LIC-92-312-JAttachment R Page 5: -Maintenance and Periodic Testing of FW-54 (continued) FW-6 (electric) FW-10 (steam). FW-54 (diesel)
- Clean / Inspect Motor WP001623(RO)
N/A N/A Criver, Change 011 Sentinel Relief Valve N/A WP004127(R2) N/A G1and Relicf Valve N/A WP004128(R2) N/A Speed Limit Governor N/A WP004796(Y2) N/A Back Press Trip - H/A WP005634(Y2) N/A -Pump Pressure Gage WP004861(M18) WP0048M(M18) PM Planned Calibration Starting Battery N/A N/A WP006641(M) Check Room fans, Batt. Chg N/A N/A EM-FM-AFW-0001(Y) Transfer Switch Diesel Engine N/A N/A { Coolant:LSample/ Change MM-PM-AFW-0002(Y)' Coolant filter: Change MM-PM-AFW-0002 (Y)' - Crankcase Oil / Filter: Replace MM-PM-AFW-0002(Y)' - Fuel Filters: Replace MM-PM-AFW-0002(Y)- Air Filter; Replace MM-PH-AFW-0005(Y)' - Belt:'Inssect MM-PM-AFW-0005(Y)' - Valve Lasi:-Adjust - MM-PM-AFW-0005 - Coupling: Inspect MM-PM-AFW-0003 ) - --Gear Red 011:' Inspect / Change MM-PM-AFW-0003 ) - Alignment Pump, Driver, Gear Reducer: Inspect MM-FM-AFW-0004g( MM-lM-AFW-0003 --Fuel Transfer Pump Filter: ' Change = Monthly - Quarterl - Annual y Frequency-Key: ) - Every Refueling Outage Y2)) :l'per'C4 months-8 - 1 per-18 months R02) - Every.Other' Refueling Outage NOTES:_ l. 'This procedure is planned but not-approved as of this date.
- 2. Maintenance intervals for some items iny change as a result of operating and industry experience.
- 3. A Reliability Centered.iaintenance MCM) analysis on FW-54 has not yet been performed. Upon completion of this *.nalysis, additional PM tasks may be developed.
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4 LIC-92 312 Page 6 Operational Procedures Applicable to FW-54 Operating Procedures e Ol-AfW-1, ' Auxiliary feedwater Actua an System Normal Operation " Section IX througt, Xill list functions of annunciators and switches relaked to FW. 54 and auxiliaries. "Auxiliar feedwater Start-Up and Normal System Operation," 01-AfW4l3through[.22giveinstructionsforstart,stopandcontrolof Steps 6. fW 54 and auxiliaries. Abnormal Operating Procedures e A0P 28 "Auxilitey feedwater System Halfunctions" Section I, " Loss of FW 6" directs the operator to start FW 10. The contingent action is to start FW-54. A0P-30, " Refilling Emergency feedwater Storage Tank" The order of preference is 01 Hakeup, Condensate Makeup, fW 54 which arovides makeup from the Condensate Storage Tank DW-48, then fire 3rotection water, Emergency Operating Procedures E0P-20, "funu,snal Recovery Procedure" Section 16.0 'RCS and Core Heat Removal." steps in subsections 9.0 and 10.0 state that if FW 6 and FW-10 are unavailable, fW 54 is to be started. w ---e-,. e m., v. ,m---.+- .-94,
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FORT CAUiOUN STATION SD-III-4 SYSTEM DESCRIPTION PAGE 23 0F 36 2.8 Auxiliary Startup Feedwater Pump FW-54 1.1 General Description A non-CQE diesel engine driven auxiliary (startup) feedwater pump FW-54) is located in the southeast corner of the Turbine Building basement floor under the truck dock. The pump can be used to provide feodwater to the steam generators during plant startup and cooldown operations. It will also provide a bachup source of auxiliary feedwater to the steam generators. Pump suction is drawn from the 10 inch condtnsate sarge line from the condensate storage tank (DW-46). The pump discharges via a 3 inch line and ties into the auxiliary feedwater system between HCV-1384 and FW-170. A connection is also provided to the EFWST to provide condensate quality makeup water in the event the normal makeup water supply is not available. An Automatic Recirculation Control Valve (ARC) is provided at the discharge of the pump to ensure low flow protection. The recirculation flow is directed to the Coniensate Storage Tank. Full flow testing cc be performed without disrupting other systems by a line downstream of the ARC valve. Flow-is directed back to the condensato storage Tank during full flow testing in this mode. The pump is driven by a diesel engine (FW-56) through a 1 to 2.08 speed increaser (FW-55) at constant speed. The engine is fueled by a day tank (FO-38) located in the pump room. A fuel oil transfer pump:(FO-37) is located in the-- service building transfers fuel from the Auxiliary Boiler Fuel 011 Tank (FO-10) to maintain level in the day tank. The day tank is sized for an 8 hour operation. A 12.46 KW generator mounted on the diesel engine provides power to its associated electrical loads in the event of station blackout. Cooling water for the engine is providedifrom a first stage takeoff connection on the pump. Automatic temperature control is provided'by the engine jacket water cooling system. The-cooling water line discharges to the pump recirculation line downstream of the ARC valve. FC/SD' R12 04-08-92
.. ~... -.. - ~ - - -.. -. FORT CALHOUN STATION SD-III-4 SYSTEM DESCRIPTION PAGE 24 OF 36 2.8.2 Design Parameters l TW-54 Auxiliary Feedwater Pump t Manufacturer Byron Jackson Pump Size -3x4x9b 8-stage DVMX Stuffing Box packed Bearings Ball and Ball Temperature 85'F normal 120*F max, 33'F min Flow (discharge) 300 gpm startup C 260 gp.a emergency 150 gpm recirculation Flow (1st stage 65 gpm to engine.and takeoff) speed increase hx's Rated head 2300 ft startup 2600 ft emergency Pump Speed 3780 rpm BHP required 340 Efficiency 67.5% FW-56 Diesel Engine Manufacturer Caterpillar Model 1408 Operating Maximum Speed 1817 rpm + 2% Fuel 2-D Diesel Het Available BHP 400% BHP Fuel Oil Transfer Pump FO-37 Design Flow 5.8 gpm Design Pressure 150 psi at 220 asu Max Available s Suction' Press 6.6' psia Electrical Generator EE-54 Output 480V 3 pm-60 Hz Cont Rating 12.46 kVA at 50'C amb Max Voltage Drop -25% With Step Load Addition FC/SD'- R12 04-08-92 t ew r -,---..-,+w -w -r,- v--*,
FORT CALHOUN STATION f*-III-4 SYSTEM DESCRIPTION PAGE 25 OF 36 i 2.8.3 Instrumentation and control j The third auxiliary feedwator pump is manually controlled frnm Control Room Panel CB-10 or locally from pump control Panel AI-114. The controlling station is determined by a " Local / Remote" selector switch on Panel AI-114. The switch is normally positioned to " Remote" which selects CB-10 as the controlling station. The pump.can be manually started by positioning the "STOP-RUN" switch on CB-10 to ) "RUN" when CB-10 is the controlling station, or by placing the "STOP-RUN" switch on AI-114 to "RUH" when AI-114 is the controlling station. In addition, an " EMERGENCY STOP" pushbutton is provided locally, outside the pump room, to stop the diesel engine for the startup feedwater pump and the fuel oil transfer pump in the event of an emergency. The pushbutton also closes the fuel oil supply isolation Valve (HCV-2119). The FW-54 pump will automatically shutdown if any of the following conditions exist: High-High engine cooling water temperature Low engino lube oil pressure e High-High engine lube oil temperature e Diesel overspeed e Diosol overcrank e The engine's fuel oil pressure, lube oil pressure, lube oil temperature, speed, cooling water temperature, and elapsed hours are monitored and displayed on pump control Panel AI-114. FC/SD R12 04-08-92 y y g ,y y4-e ,,mw4-6p+ + ,y -+r-+--- y my.-- q- _.y,,n 9 .np .-g n,- ,-e..-%+e- --1 y
FORT CALHOUN STATION SD-III-4 i SYSTEM DESCRIPTION PAGE 26 0F 36 l 2.8.3 Pump suction flow is measured on FI-1112 l displayed on CD-10. The pump discharge flow is monitored (FI-1117) and displayed on loca] control Panel Al-115. The pump discharge flow Currently pump flow signal can also be used to control the indication on CB-10 is injection rate from the hydrazine injection discharge flow. The metering pump (CF-13) in an open loop fashion. change to suction flow In order to maintain acceptable accuracy over is being evaluated a measured feedwater flow range of 20-350 GPM, in accordance with two flow transmitters arranged in a split Standing Order G-21 range configuration are used. Flow signal is " Modification Control". linear. Local instruments include temperature indicators TI-1115 located at the pump discharge and TI-1120 to display diesel engine cooling water temperature. Pressure indicators will include PI-1116 to display pump discharge pressure, PI-1118 to display pump inlet pressure and PI-1119 to display diesel engine cooling water pressure. The day tank fuel oil level can be controlled manually or automatically. The type of operation will be determined by the positn of the " HAND-OFF-AUT0" switch located adjacent to the day tank. Fuel oil is provided to the tank by the fuel oil transfer pump (FO-37). Positioning the switch in the " HAND" position will start the transfer pump and will continue filling the tank until the switch is positioned in the "0FFh position. The " Trouble" annunciator previously described will alarm if the fuel oil level in the day tank drops to 10 percent full. The day tank fuel oil level is controlled automatically by level switch LS-2120, when the switch is in the "AUT0" position. The transfer pump will start when the level in the tank drops below 15 percent and stop when the level reaches 90 percent. The fuel oil transfer pump will stop and the fuel oil isolation valve will close regardless of the position of-the control switch if the pump emergency stop pushbutton is depressed. LocalEinstruments include fuel oil day tank level indicator'LI-2120 and pressure gauges PI-2116 for the fuel oil transfer pump outlet pressure and PI-2115 for the fuel oil transfer pump inlet pressure. FC/SD R12 04-08-92
FORT CALHOUN STATION SD-III-4 SYSTEM DESCRIP?f0N PAGE 27 OF 36 2.8.3 The pump room incorporates two air inlet openings and two air outlet fans with fire dampers for room ventilation and engine combustion air. The pump room (including fire dampers and self closing doors) is designed as a three hour fire rated enclosure as required by NFPA 37 " Stationary Combustion Engines". Flow through ventilation is used to maintain room temperature at al lovel acceptable for pump / engine operation. The fans (VA-720 and VA-721) can be controlled manually or automatically. The type of operation '411 be determined by the position of the "HA....-OFF-AUTO" selector switches located on MCC-3C4C-3 'one switch for each fan). When the switches are positioned in " HAND," the fans will run, and when positioned in "0FF" the fans will stop. With the nwitches in the " AUTO" position ventilating fan VA-720 will start and stop with the auxiliary feedwater pump (FW-54). Ventilating fan VA-721 will start when the temperature in the room is greator than 105'F. This temperature control will be performed by temperature switch TS-795. Green-stop/ red-run indicating lights are provided at motor control center MCC-3C4C-3 to indicato ventilating fan operating status. Fire detection in the pump room is provided by two infra-red flame detectors connected to alarm at the plant XL-3 fire detection panol located in Control Room panel AI-56. Firo protection in the pump room is provided by the Turbine Building sprinkler system. The pump room for fire protection purposes is considered extra hazard group 1 in accordance with NFPA 13. The pump room has one gaitronics speaker for plant communication, a flashing nmergency alurm light for the emergency alarm system, and two fire alarm bells. FC/SD R12 04-08-92
FORT CALilOUN STATION SD-III-4 SYSTEM DESCRIPTION PAGE 28 OF 36 2.8.3 The pump room enclosure consists of eight inch l thick block walls and two self-closing doors. A curbed oil spill area sized to hold the entire contents of the. day tank is installed under the day tank. A trolley beam is installed above the pump / increaser / engine center line-to aid maintenance activities of the equipment. A 20A/120V receptacle will be provided for the pump room hoist. MCC-3C4C-3 provides power for the fuel oil transfer pump (FO-37), the pump room ventilation fans (VA-720 and VA-721), the third auxiliary feedwater pump (FW-54) auxiliary loads. MCC-3C4C-3 is located outside the pump room and will be fed from either MCC-3C4C-1, which is the normal source or from the diesel engine shaft driven generator (EE-54). Transfer switch EE-55 automatically transfers the power source between HCC-3C4C-1 and generator EE-54 upon loss of voltage from MCC-3C4C-1. Water chemistry control will be accommodated by providing taps suitable for connection to a mobil condensato demineralizer unit on the pump suction and recirculation lines. (Valves FW-1230 and FW-1229 on Dwg. 11405-M-253 Sh. 4) Total dissolved solids can be controlled by periodically cycling the contents of the condensate storage tank through the domineralizer unit. 1 I FC/SD R12 04-08-92
TORT Caul 0UN STATION SD-III-4 1 SYSTEM DESCRIPT20H PAGE 29 0F 36 2.8.3 Hydrazine Iniection System For oxygen control while FW-54 is supplying the steam generators during startup, hot standby and shutdown conditions, a hydrazine injection system was installed. Just went of the FW-54 pump room, in-the Turbine Building Basementc i s the skid location for the 55 gallon hydrazine storage tank, Item CF-12, and the hydrazine metering pump (Item CF-13). The pump is a positive displacement Pu)sa-feeder Model 7120 with a variable speed j motor drive and a-manual pump stroke adjustment. The manual adjustment will be used to make corrections for suction temperatare of the condensate. Flow rate to maintain betwoon 1 1/2 and 2 1 ratio of hydrazine-to dissolved oxygen, will vary from approximately 3 al/ min at 20 gpm forward feedsator flow to approximately 45 ml/ min at 300 gpm forward flow. A calibration cylinder t is permanently installed on the auction line to the pump. i R12 04-08-92 e ,g-e
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