background image

ES-A-ACV-LF980GD-16  2115

STEP 5

Opening Speed Needle Valve Adjustment: While free flow goes 
into the lower chamber, the Opening speed flow control restricts 
flow out of the upper chamber of the main valve. 
If valve opening is too slow, turn the adjustment screw OUT, 
counterclockwise, increasing the rate of opening.
If valve opening is too quick, turn the adjustment screw IN, clock-
wise, decreasing the rate of opening.

STEP 6

When pump demand is satisfied, pump will continue to operate 
as the main valve closes. To close main valve, de-energize the 
solenoid, checking that the main valve closes.

 

16

 

© 2021 Watts

Installation, Operation and Maintenance - Series LF980GD-16 

Commissioning the Pump Control Valve

STEP 1

NOTE:

 System needs to be filled, pressurized, and ready for flow. Due to an internal system check feature, Automatic Control Valve will 

not flow until pump starts.

Pre-set pilots as noted:

Opening and Closing Speed

 – Prior to pump start, actuate manual operator on solenoid to enable diaphragm assembly to stroke 

open and closed. Observing the limit switch stem indicator, monitor rate of opening and closing speed. Adjust accordingly per applica-
tion requirements.  

NOTE: 

Cycle diaphragm multiple times to confirm rate of movement and remove excess air trapped within the cover chambers (See 

Figure 1 Below).

To increase the rate of opening/closing, turn the adjustment 
screws on the speed controls OUT, counterclockwise (See Figure 
2B Following Page). To decrease the rate of opening/closing, turn 
the adjustment screws on the speed controls IN, clockwise (See 
2A Following Page).

STEP 2

Prior to pump start, energize the solenoid to confirm connection 
to power source.

STEP 3

De-energize the solenoid prior to initial pump start.

STEP 4 

Energize the solenoid at pump start to open the main valve, 
checking that the main valve opens.

Figure 1 

4-Way Solenoid

Manual  

Operation

Normal  

Operation

Содержание AMES LF980GD-16 Series

Страница 1: ...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...

Страница 2: ...mp is signaled to start the 4 Way Solenoid is energized and directs fluid and pressure into the power chamber below the diaphragm and relieves fluid and pressure from the cover chamber above the diaph...

Страница 3: ...his assembly is the only moving part within the valve allowing it to open or close as commanded by the pilot control system The lower por tion of this two piece assembly is a mechanical check feature...

Страница 4: ...ure 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 1 4 1 6 1 2 1 0 8 6 4 3 2 1 2 2 1 2 1 0 8 6 4 3 2 1...

Страница 5: ...3 and Smaller ASTM A276 302 Stainless Steel 13A Bearing Retaining Ring 4 and Larger ASTM A276 302 Stainless Steel 14 Inner Bearing ASTM A276 304 Stainless Steel 15 O ring Buna N Nitrile 16 O ring Buna...

Страница 6: ...e 300 Angle Thread Angle 150 Angle 300 Port Size NPT Port Size NPT Port Size NPT Shipping Weights A B C D E F G H I J K L M in in mm in mm in mm in mm in mm in mm in mm in mm in mm in mm in in in lbs...

Страница 7: ...EPDM optional Viton optional Voltage 24VDC 24VAC or 120VAC Enclosure General Purpose NEMA 4 standard Explosion Proof NEMA 6 6P 7 9 optional Action 4 Way Actuation Solenoid Action only Main valve actio...

Страница 8: ...ve 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...

Страница 9: ...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...

Страница 10: ...on 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 FLO...

Страница 11: ...ilot 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...

Страница 12: ...re used in 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 packi...

Страница 13: ...r 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 t...

Страница 14: ...vel 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...

Страница 15: ...ld be kept clean and replaced exactly as removed Consult appropriate hydraulic schematic to ensure proper re assembly 6 Connect solenoid wiring leads to desired switching device using safe standard el...

Страница 16: ...not flow until pump starts Pre set pilots as noted Opening and Closing Speed Prior to pump start actuate manual operator on solenoid to enable diaphragm assembly to stroke open and closed Observing t...

Страница 17: ...ure 2B increasing the rate of closing Figure 2 Flow Control Counterclockwise to INCREASE the rate of opening Clockwise to DECREASE rate of opening 2A 2B STEP 8 At valve closure booster pump will stop...

Страница 18: ...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 di...

Страница 19: ...ation 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 Blo...

Страница 20: ...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...

Страница 21: ...oes 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 o...

Отзывы: