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10

ES-A-ACV-LF984GD 2115

© 2021 Watts

LEAD FREE

*

Model CK

Check Valve

Size: ¼" – 1" NPT

Model CK Check Valves are pilot line check valves. In typical

applications these low cracking pressure in-line checks provide a

hydraulic check feature to a pilot system. When the main valve outlet

pressure exceeds inlet pressure, fluid is directed from the outlet to

the main valve cover. This causes the main valve to close until inlet

pressure is again greater than outlet.

Standard Material:

Brass Housing and Body

Stainless Steel Indicating Rod

Optional Material:

Stainless Steel Housing and Body Disc

Viton™ (

1/4

" –

½

")

PTFE (1")

Pressure Rating:

400psi (27.6 bar)

Body

Spring

Spring

Retainer

Stem

Adaptor

Disc

Disc Holder

Specifications

* The wetted surface of this product contacted by consumable

water contains less than 0.25% of lead by weight.

Model LFCK

Viton™ is a trademark of The Chemours Company FC, LLC

ACV Standard Components - Series LF984GD

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Содержание AMES LF684GD Series

Страница 1: ...ctor in accordance with local codes and ordinances WARNING Need for Periodic Inspection Maintenance This product must be tested periodically in compliance with local codes but at least once per year or more as service conditions warrant All products must be retested once maintenance has been performed Corrosive water conditions and or unauthorized adjustments or repair could render the product ine...

Страница 2: ...pening speed control which restricts the speed of fluid and pressure evacuating the main valve cover chamber The valve remains open during the pumping cycle Rate of Flow Feature During the pumping cycle the valve acts as a Rate of Flow Control Valve Throttling Flow Control action is controlled by a normally open differential control pilot designed to 1 Open allowing fluid out of the main valve cov...

Страница 3: ...his Ames Automatic Control Valve ACV is a full port single chamber basic valve that incorporates a one piece disc and dia phragm assembly This assembly is the only moving part within the valve allowing it to open close or modulate as commanded by the pilot control system Ames ACV Main Valves are Lead Free The Ames ACV piloting system contains Lead Free components ensuring all of our con figuration...

Страница 4: ...1530 1945 Pressure Drop psi 2 3 4 6 8 10 20 30 40 60 80 100 Flow Rate Gallons per minute Water 2 4 10 20 40 60 80 100 200 500 1000 2000 5000 10000 20000 100000 8 6 4 8 1 0 1 2 1 4 1 6 6 2 1 1 2 3 8 1 0 1 2 6 4 3 2 2 1 1 Angle Globe C V Suggested Maximum continuous flow based on velocity of 20 ft per second Maximum intermittent flow based on velocity of 25 ft per second Minimum flow rates based on ...

Страница 5: ...el 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 17...

Страница 6: ...ze NPT Port Size NPT Shipping Weights A B C D E F G H I J K L in in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm in in lbs kgs 11 4 71 4 184 51 2 140 3 8 1 4 20 9 11 2 71 4 184 81 2 216 51 2 140 31 4 83 17 8 48 3 8 1 4 25 11 2 93 8 238 93 8 238 10 254 63 4 171 43 4 120 43 4 121 5 127 31 4 83 31 4 83 31 2 89 3 8 1 2 40 18 21 2 11 279 11 279 115 8 295 71 2 191 51 2 140 51 2 140 57 8 149 ...

Страница 7: ...the Main Valve open and closed When the cover of the Accelerator Pilot is de pressurized the main valve cover chamber is connected to upstream pressure causing the valve to close drip tight When the cover of the Accelerator Pilot is pressurized the main valve cover chamber is vented downstream dry drain or to atmosphere wet drain causing the valve to open The Model 22 is designed with an integral ...

Страница 8: ... the valve opens or closes The adjustable collar is normally set to contact the trip arm when the main valve is closed The collar can be positioned on the stem by loosening the set screw to actuate the switch at the desired point of valve travel Single Pole Double Throw Switch Common Lug Normally Open Normally Closed Specifications Body Material Stainless Steel Elastomers Buna N standard EPDM opti...

Страница 9: ...astomers Nitrile standard EPDM optional Viton optional Voltage 24VDC 24VAC or 120VAC Enclosure General Purpose NEMA 4 standard Explosion Proof NEMA 6 6P 7 9 optional Action Normally Open or Normally Closed Normal Operating Condition Manual Override Solenoid Action only Main valve action energize to open or energize to close is dependent on the particulars of the pilot system Brass solenoids are no...

Страница 10: ...alve cover This causes the main valve to close until inlet pressure is again greater than outlet Standard Material Brass Housing and Body Stainless Steel Indicating Rod Optional Material Stainless Steel Housing and Body Disc Viton 1 4 PTFE 1 Pressure Rating 400psi 27 6 bar Body Spring Spring Retainer Stem Adaptor Disc Disc Holder Specifications The wetted surface of this product contacted by consu...

Страница 11: ...ion In the free flow direction the seat moves out of the flow path to all unrestricted flow Specifications Standard Flow Control Large Flow Control FLOW FLOW CLOSED Fluid Speed Controlled by Needle FLOW External Threads Internal Threads FLOW OPEN Free Flow Seat Full Open Size Standard Flow MNPT x 3 8 FNPT High Flow 1 2 MxF NPT Body Material Lead Free Brass Stainless Steel optional Seat Lead Free B...

Страница 12: ...sure signal is sensed below the diaphragm An increase in flow rate causes the differential pressure across the orifice plate to increase The Pilot modulates toward a closed position when the differential pressure signal increases above the control setpoint causing the Main Valve to modulate toward a closed position decreasing flow rate A decrease in flow rate causes the differential pressure acros...

Страница 13: ... 3 Cap Screw 4 Power Chamber 5 O Ring 6 Body 7 Seat 8 Adjusting Screw 9 Pin 10 Adapter 11 O Ring Included in Repair Kit Item Description 12 Spring Guide 13 Nut 14 Belleville Washer 15 Diaphragm Washer 16 Diaphragm 17 O Ring 18 Yoke 19 Disc Retainer Assembly 20 O Ring 21 Bottom Cap ACV Standard Components Series LF984GD Model LFCP14 1 Rate of Flow Pilot ...

Страница 14: ...pilot circuit speed controls and pilots The filter element can be accessed for cleaning by removing the clean out cap or may be cleaned by installing an optional blow down ball valve The wetted surface of this product contacted by consumable water contains less than 0 25 of lead by weight Body Material Lead Free Copper Silicon Alloy CF8M 316 Stainless Steel optional Retainer Cap Lead Free Copper S...

Страница 15: ... pilot lines to provide a positive shutoff in any override or maintenance situation for simple trouble shooting This 2 piece full port valve features bottom loaded stems PTFE seats and packing Size Dimensions Weight C H L in in mm in mm in mm lbs kg 1 4 113 16 46 37 16 87 13 4 45 0 4 0 2 3 8 113 16 46 37 16 87 13 4 45 0 4 0 2 1 2 113 16 46 37 16 87 115 16 50 0 4 0 2 3 4 21 4 57 4 101 25 16 59 0 8 ...

Страница 16: ...er Size 1 4 3 4 NPT Model LF60 Flo Clean Strainers are used to filter the fluid pass ing through the pilot circuit and provide protection to pilot circuit speed controls and pilots It is installed in the inlet body port of the Main Valve exposing the strainer element to main line flow The currents and flow across the screen create a self scouring effect cleaning the filter element The wetted surfa...

Страница 17: ...avel Body Material Stainless Steel Elastomers Buna N standard EPDM optional Viton optional Enclosure NEMA 1 3 4 and 13 General Purpose standard NEMA 1 7 and 9 Explosion Proof optional Electrical Form C SPDT Switch 15 amp 125 250 or 480 VAC amp 125 VDC amp 250 VDC Conduit Connection The wetted surface of this product contacted by consumable water contains less than 0 25 of lead by weight Item Descr...

Страница 18: ...proper re assembly 6 Connect solenoid wiring leads to desired switching device using safe standard electrical practices 7 Wire the limit switch contacts to the proper relay connections using safe standard electrical practices Adjust the limit switch collar to the approximate make break contact position 8 After installation vent entrapped air from valve cover and pilot system by following instructi...

Страница 19: ...tart to open the main valve checking that the main valve opens Air is vented through the loosened fitting Tighten the fitting when liquid begins to vent Clockwise for MANUAL Operation Figure 1 3 Way Solenoid STEP 6 Slowly open downstream isolation valve to establish flow through the system STEP 7 With a demand for flow on the system the valve can now be adjusted for the proper flow rate This requi...

Страница 20: ...ng Speed Needle Valve Adjustment The closing speed needle valve regulates fluid pressure into the main valve cover chamber controlling the valve closing speed If valve closing is too slow turn the adjustment screw OUT coun terclockwise increasing the rate of closing STEP 12 At valve closure booster pump will stop Adjust limit switch collar to final position to ensure positive actuation of limit sw...

Страница 21: ...t valve 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 isolatio...

Страница 22: ...lation valves ensure open Diaphragm is damaged Conduct diaphragm seal test repair and replace if necessary Main valve stem assembly corroded damaged Inspect stem assembly clean replace if necessary Blockage in main valve Perform freedom of movement test if valve does not close disassemble and remove blockage Worn damaged valve seat Perform seat sealing check disassemble and inspect re pair seat if...

Страница 23: ... require a lifting eye bolt to be installed in the valve stem accessory threads located on the very top of the valve stem 5 Before removing Stem Nut examine stem threads for mineral build up Remove deposits with a fine wire brush Extreme care should be taken not to damage the finish on stem guiding surfaces when disassembling Avoid applying pipe wrenches to top or bottom stem guide surfaces 6 Afte...

Страница 24: ... 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 in the Commissioning the Pump Control Valve section matching the valve func tion Size in 1...

Страница 25: ...es 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 over which the Company has no control This warranty shall be invalidated by any abuse misuse misapplication improper installation or improper maintenance or alteration of the product Some States do not ...

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