DeZurik Willamette AWWA Скачать руководство пользователя страница 8 | Manualshive

Страница: 8 / 15

DeZurik Willamette AWWA Скачать руководство пользователя страница 8

DeZURIK

Willamette AWWA Metal Seated Ball Valve

January 2022

Page 8

D12001

Maintenance

and Operation

(Continued)

12. Run complete operating mechanism to open position, rekey and tighten clamp bolts (B24) on lever

(B20). Make sure all operating mechanisms are properly aligned.

13. Release adjusting screw (A16) just enough so that ball (B05) can turn freely and retighten sealing and

locknut (A29) on plug adjusting screw (A16).

«
...
6
7
8
9
10
...
»

Содержание Willamette AWWA

Страница 1: ...DeZURIK Inc Sartell Minnesota USA Phone 320 259 2000 www dezurik com info dezurik com WILLAMETTE AWWA METAL SEATED BALL VALVES Instruction D12001 January 2022 ...

Страница 2: ...ial in the valve Inspection Your VBL has been packaged to provide protection during shipment however it can be damaged in transport Carefully inspect the unit for damage upon arrival and file a claim with the carrier if damage is apparent Parts Recommended spare parts are listed on the assembly drawing These parts should be stocked to minimize downtime Order parts from your local DeZURIK sales rep...

Страница 3: ... Operating Mechanism 4 Handling and Storage 4 Installation 5 Fusion Powder Coated Valves 5 Maintenance and Operation 6 Operator 6 Basic Valve and Torque Unit 6 Shaft Seal Replacement Closed Position 6 Shaft Seal Replacement Open Position 7 Lubrication 9 General 12 Ball Valve 12 Torque Unit 12 Power Supply for Operating Valves 13 Troubleshooting 14 ...

Страница 4: ...ing in accordance with AWWA standard C507 in one direction or both directions as an option The ball shaft is designed for a factor of safety for all combined stresses of at least five to one Torque Unit Valve Operating Mechanism The torque unit employs a traveling crosshead to impart positive rotary movement to the ball by means of a link and lever connected to the ball shaft A ball shaft support ...

Страница 5: ...n arrow indicating the direction of flow The direction of flow refers to the flow coming from the pump Pump control is the primary use of single seated VBL and the seat is always on the pump side of the valve When the pump is off there is low or zero pressure on the pump side of the valve At the same time there is full pressure on the system side The system pressure holds the ball tight against th...

Страница 6: ...and table 2 for basic torque unit component identification The operating shaft of the valve is equipped with o ring seals The O Rings may be replaced while the valve is installed The procedure for replacing rings with the valve in the closed position is as follows Servicing the valve while the pipeline is under pressure can cause personal injury or equipment damage Relieve pipeline pressure before...

Страница 7: ...e the pressure in the pipeline 2 Drain oil if any from the torque unit housing B02 and remove indicator B11 and cover B01 3 Tighten up the plug adjusting screw A16 by turning it turn maximum pushing the ball A05 against the thrust washers A13 4 Loosen the clamp bolts B24 in lever B20 and remove key or dowel B23 5 Run crosshead B15 down to closed position 6 Remove link pin B19 7 Run crosshead B15 b...

Страница 8: ...ntinued 12 Run complete operating mechanism to open position rekey and tighten clamp bolts B24 on lever B20 Make sure all operating mechanisms are properly aligned 13 Release adjusting screw A16 just enough so that ball B05 can turn freely and retighten sealing and locknut A29 on plug adjusting screw A16 ...

Страница 9: ...DeZURIK Willamette AWWA Metal Seated Ball Valve January 2022 Page 9 D12001 Figure 1 Basic Valve Assembly ...

Страница 10: ...APER PIN A11 DOWEL PIN A12 DOWEL PIN A13 THRUST WASHER A14 O RING RETAINER A15 THRUST PIN A16 SET SCREW A17 SET SCREW A18 STUD A19 NUT A20 PIPE PLUG A21 RETAINING RING A22 SCREW A23 O RING ADAPTOR A24 O RING BODY HALF A25 O RING THRUST PIN A26 O RING O RING RETAINER INSIDE A27 O RING O RING RETAINER OUTSIDE A28 O RING SEAT RING A29 JAM NUT A30 STUD A31 NUT A32 LUBE FITTING A33 EYE BOLT A34 JAM NUT...

Страница 11: ...1 COVER B16 BUSHING B02 HOUSING B17 RETAINING RING B03 PIN B18 SIDE MEMBER B04 NUT B19 LINK PIN B05 LOCKWASHER B20 LEVER B06 SCREW B21 SET SCREW B07 SCREW B22 NUT B08 LOCKWASHER B23 PIN B09 PIN B24 SCREW B10 INDICATOR SHAFT B25 NUT B11 INDICATOR B26 LOCKWASHER B12 SET SCREW B27 BUSHING B13 BUSHING B28 VENT PLUG B14 LINK B29 SET SCREW B15 CROSSHEAD ...

Страница 12: ...tanolith Grease 42 No Ball Valve Lubricate twice annually more often if valve is operated frequently or in harsh service conditions using one of the approved lubricants from Table A Use approximately 4 ounces of grease per bushing per re lubrication event Check with the factory in the event that a special application prevents the use of the approved lubricants Torque Unit Lubricate twice annually ...

Страница 13: ...d exhaust line be of ample size to provide adequate speed The power source must be suitable for cylinder use Use of a filter or strainer where needed is recommended In the case of air a continuous and reliable source of filtered air is required to operate the cylinder The air should be clean and reasonably dry free from moisture A lubricator may be used if desired for maximum cylinder life Locate ...

Страница 14: ...e gasket Replace flange gasket Misalignment or damage to field piping and supports Adjust misalignment or repair piping or supports Damaged flange face s or improper flange connections Repair flange replace valve body or adjust flange connections Valve does not fully close Object is wedged between seat and ball Fully open valve to remove object Closed position stop is not set correctly Adjust clos...

Страница 15: ...ll be the only effective guarantee or warranty binding on Seller despite anything to the contrary contained in the purchase order or represented by any agent or employee of Seller in writing or otherwise notwithstanding including but not limited to implied warranties THE FOREGOING REPAIR AND REPLACEMENT LIMITED WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES OBLIGATIONS AND LIABILITIES INCLUDING ALL W...

Отзывы:

Нет отзывов