Watts LFM115-3 Скачать руководство пользователя страница 4 | Manualshive

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Watts LFM115-3 Скачать руководство пользователя страница 4

STEP 2

Loosen a tube fitting or cover plug at the main valve to allow air to

vent during start-up (See Image 5 and 6).

STEP 3

Pressure the line, opening the upstream isolation valve slowly

(Labeled #1 in Figure 2). Air is vented through the loosened fitting.

Tighten the fitting when liquid begins to vent.

STEP 4

Slowly open downstream isolation valve to establish flow through

the system (Labeled #2 in Figure 2).

Figure 2

1

2

Image 5

Image 6

4 IOM-ACV-115-3_6115-3 2115

EDP# 1917029

© 2021 Watts

IOM-ACV-115-3_6115-3 2115

EDP# 1917029

© 2021 Watts 5

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Содержание LFM115-3

Страница 1: ...ons to the information provided You are required to consult the local building and plumbing codes prior to installation If the information provided here is not consistent with local building or plumbing codes the local codes should be followed This product must be installed by a licensed contractor in accordance with local codes and ordinances WARNING Need for Periodic Inspection Maintenance This ...

Страница 2: ... Install isolation valves upstream and downstream of the main valve 4 Open the isolation ball valves in the control tubing if so equipped Failure to open these will prevent the valve from functioning properly Note If using butterfly valves ensure valve disc does not contact the main valve 5 Provide adequate clearance for valve servicing and maintenance Refer to valve servicing dimensions on next p...

Страница 3: ...n 10 10 12 14 14 16 24 26 28 30 34 40 48 48 Size in 11 4 11 2 2 21 2 3 4 6 8 10 12 14 16 C in 16 16 20 22 22 24 32 34 38 44 48 52 D in 10 10 12 14 14 16 24 26 28 30 34 40 Note Start with the upstream and downstream isolation valves in your system closed Labeled 1 and 2 in Figure 1 respectively Setting the Pressure Reducing Control The following tables detail the recommended minimum valve servicing...

Страница 4: ... opening the upstream isolation valve slowly Labeled 1 in Figure 2 Air is vented through the loosened fitting Tighten the fitting when liquid begins to vent STEP 4 Slowly open downstream isolation valve to establish flow through the system Labeled 2 in Figure 2 Figure 2 1 2 Image 5 Image 6 4 IOM ACV 115 3_6115 3 2115 EDP 1917029 2021 Watts ...

Страница 5: ...the rate of opening IF recovery of downstream pressure is too quick as indicated in a rapid increase in pressure possibly higher than the desired set point turn the adjustment screw IN clockwise decreasing the rate of opening See Image 8 Step 7 Closing Speed Needle Valve Adjustment The closing speed needle valve regulates fluid pressure into the main valve cover chamber controlling the valve closi...

Страница 6: ...e specification sheets for approximate cover capacity A continuous flow of water from the open port indicates a damaged diaphragm or loose disc diaphragm assembly Disassemble valve and replace diaphragm or tighten disc diaphragm assembly Test 2 Seat Seal Test 1 Close downstream isolation valve and install pressure gauges on an open inlet and outlet port of main valve 2 Open upstream isolation valv...

Страница 7: ...mbly by partially opening from full closed position Improperly configured opening speed control if equipped Adjust opening speed control to verify functionality adjust as required Standard setting for opening speed control is 11 2 21 2 turns open from full closed position Can be adjusted in field Main Valve will not close Closed isolation valves in pilot system Check isolation valves ensure open D...

Страница 8: ... Remove cover nuts and washers 3 Remove the cover If cover is not free to be removed loosen it by tapping upward along its outside edge with a dull cold chisel pic tured above a Large valves may require the installation of lifting eye bolts in order to facilitate cover removal installation ports are provided on the cover for this purpose 4 Remove the Disc and Diaphragm Assembly from the valve body...

Страница 9: ... brush or by using a Mineral Dissolving Solution Inspect parts for wear and replace if necessary 7 Inspect valve seat If seat is not damaged removal is not necessary Valve seats 6 and smaller are threaded into the body of the valve and require a seat removal tool Figure 3 Table 1 details the tool dimensions for seat removal Valve seats 8 and larger are held in the valve body with stainless steel c...

Страница 10: ... Nuts in a crossing pattern to ensure even distribution Test the Disc and Diaphragm Assembly for smooth travel by following the Freedom of Movement Test procedure in previous section 11 Test the integrity of the Seat Seal by following the Seat Seal Test procedure in previous section 12 Return valve to service by following instructions on the Technical Bulletin matching the valve function Size in 1...

Страница 11: ...l 9 Stem Washer ASTM A276 304 Stainless Steel 10 Diaphragm Washer ASTM A536 65 45 12 Epoxy Coated Ductile Iron 11 Diaphragm Buna N Nitrile 12 Disc Retainer ASTM A536 65 45 12 Epoxy Coated Ductile Iron 13 Seat Disc Buna N Nitrile 14 Spacer Washer x5 NY300 Fiber 15 Disc Guide ASTM A743 CF8M 316 Stainless Steel 16 Shaft ASTM A276 304 Stainless Steel 17 Seat Ring ASTM A743 CF8M 316 Stainless Steel 17A...

Страница 12: ...ot be responsible for any incidental special or consequential damages including without limitation lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly other costs resulting from labor charges delays vandalism negligence fouling caused by foreign material damage from adverse water conditions chemical or any other circumstances ov...

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