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TECHNICAL DATA

2” MoDEL G-2000 Dry vALvE

rISEr ASSEMBLy

Page 3 of 13

The viking Corporation, 210 N Industrial Park Drive, Hastings MI 49058

Telephone: 269-945-9501 Technical Services: 877-384-5464 Fax: 269-818-1680 Email: [email protected]

visit the viking website for the latest edition of this technical data page www.vikinggroupinc.com.

Form No. F_011110 17.04.27 Rev 17.1

Model A-1

Differential

Valve

Air Pressure

Gauge & Valve

Flow Test

Valve

Check

Valve

Supply

Pressure

Gauge & Valve

PORV

Prime Pressure

Gauge & Valve

Main

Drain

Flow

Test

Valve

Supply Pressure

Gauge & Valve

Drip

Cup

Drip

Check

PORV

Air Pressure

Gauge & Valve

Prime Pressure

Gauge & Valve

Optional

Accelerator

Connection

Air Supply

Connection

Optional

Accelerator

Connection

Air Supply

Connection

Air Supervisory

Switch

Control Valve

Air Supervisory

Switch

Waterflow

Pressure

Switch

Prime

Valve

Strainer

Waterflow

Pressure

Switch

Check Valve

Check

Valve

Figure 1 - Trim Components

Figure 2 - Air Supply options

Содержание G-2000

Страница 1: ...tory Hydrostatically Tested to 500 psi Air to water differential Approximately 5 75 to 1 Friction Loss Given in feet of Schedule 40 pipe based on Hazen Williams formula C 120 G 2000 Dry Valve 8 5 10 Section of Pipe 1 Water Supply Control Valve 1 9 G 2000 Dry Valve Cv Factor 115 6 Valve Color Black Material Specifications Refer to Figure 11 Ordering Information Available since 2010 Part Number G 20...

Страница 2: ... x T Example System volume as determined by table 1 750 gallons System water pressure 73 psi 5 bar Required air pressure 73 5 75 15 28 psi 1 93 bar Compressor Size cfm 750 x 28 6 4 cfm 7 48 x 14 7 x 30 Therefore the compressor shall be capable of providing 7 cfm D Pressure Switch Wiring Wire the Alarm Pressure Switch PS10 and Air Superviso ry Switch PS40 and adjust pressure settings as shown in Fi...

Страница 3: ...1 Differential Valve Air Pressure Gauge Valve Flow Test Valve Check Valve Supply Pressure Gauge Valve PORV Prime Pressure Gauge Valve Main Drain Flow Test Valve Supply Pressure Gauge Valve Drip Cup Drip Check PORV Air Pressure Gauge Valve Prime Pressure Gauge Valve Optional Accelerator Connection Air Supply Connection Optional Accelerator Connection Air Supply Connection Air Supervisory Switch Con...

Страница 4: ...NEL COM 1 2 2 1 COM HIGH AIR LOW AIR PS40 2 WITH NORMAL SYSTEM PRESSURE APPLIED HIGH TERMINAL 1 WILL CLOSE ON PRESSURE INCREASE EOLR DWG 930 2 Figure 3 Alarm Pressure Switch Wiring Alarm Pressure Switch should be set to 5 psi 0 34 bar Figure 4 Air Supervisory Switch Wiring High Air should be set to 10 psi 0 7 bar above compressor cut out Low Air should be set to 5 psi 0 34 bar below comperssor cut...

Страница 5: ...ers the prime chamber the rolling diaphragm is pressurized causing it to expand downward onto the water seat 9 Verify that no water flows from the drip check when the plunger is pushed 10 When the priming pressure has been verified as being established slowly open the water supply control valve 11 When flow is developed from the flow test valve CLOSE the flow test valve 12 Fully open the water sup...

Страница 6: ...sure from the air supply preventing the differential valve from closing and re establishing prime pressure Figure 7 Loss of System Air Pressure 6 Inspections Tests Maintenance It is imperative that the system is inspected and tested on a regular basis The frequency of the inspections may vary due to contami nated water supplies corrosive water supplies corrosive atmospheres as well as the conditio...

Страница 7: ...should be audible d Verify that remote station alarm signals if provided were received 3 When testing is complete close the alarm test valve 4 Verify a All local alarms stop sounding and alarm panels if provided reset b All remote station alarms reset c All supply piping to water motor properly drains 5 Verify that the alarm test valve is CLOSED 6 Verify that the intermediate chamber of the dry va...

Страница 8: ...e of the dry valve to flush away any accumulation of foreign material 3 Close the flow test valve 4 Record water supply pressure and system air pressure 5 Open the remote system test valve to simulate operation of the dry system Record a Elapsed time from opening of the test valve to operation of the dry valve System pressure when the dry valve operated b Elapsed time from opening of the test valv...

Страница 9: ...e D Removing Replacing the Prime Coupling 1 Open the 1 2 union on the prime line 2 Using a wrench on the flats of the coupling remove the coupling from the valve body 3 Inspect the coupling and O rings Replace if necessary using the instructions in O Ring Replacement Bulletin F_120611 E Removing Replacing the Prime Chamber Assembly 1 The prime chamber assembly is now held in place by two flanges o...

Страница 10: ...st edition of this technical data page www vikinggroupinc com Form No F_011110 17 04 27 Rev 17 1 Figure 8 Complete Assembly Part Number 16149 1 includes 1 Model G 2000 Dry Valve 1 Model G 2000 Dry Trim 1 10 Section of Schedule 10 Pipe with Coupling 1 Air Pressure Supervisory Switch PS40 2A 1 Alarm Pressure Switch PS10 2A 1 Water Supply Control Valve Figure 9 Optional Accessories Accessories 08055 ...

Страница 11: ...trial Park Drive Hastings MI 49058 Telephone 269 945 9501 Technical Services 877 384 5464 Fax 269 818 1680 Email techsvcs vikingcorp com Visit the Viking website for the latest edition of this technical data page www vikinggroupinc com Form No F_011110 17 04 27 Rev 17 1 Figure 10 Installation Dimensions ...

Страница 12: ...ial No Req d 1 Body 65 45 12 Ductile Iron 1 2 Seat UNS C11000 Copper or UNS S30400 Stainless Steel 1 3 Anaerobic Adhesive 1 4 16063 Prime Chamber Assembly Brass EPDM Nitrile 304 Stainless Steel Bronze Alloy 1 5 O Rings EPDM and Nitrile 2 or 3 6 16062 Coupling UNS S17400 Stainless Steel 1 7 15932 Check Diaphragm EPDM 1 8 08091 3 8 16 x 1 HHS UNS S30400 Stainless Steel 8 9 Cover 65 45 12 Ductile Iro...

Страница 13: ... 17 1 Item Number Part Number Description Material Number Required 1 15459 Seat Brass UNS C36000 1 2 Body Brass UNS C84400 1 3 14948 Diaphragm Polyester Fabric and EPDM Elastomer 1 4 04735A Upper Diaphragm Bellofram 1 5 12470 Screw 10 24 x 1 1 4 Long Steel Zinc Coated 3 6 Cover Brass UNS C84400 1 7 Spacer Brass UNS C84400 1 8 04736A Piston Polycarbonate 1 Replacement part is not available 1 8 1546...

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