7
ES-A-ACV-LF981GD 2115
© 2021 Watts
LEAD FREE
*
Model 22-1
3-Way Accelerator Control
Size:
1/2"
The Model 22-1 3-Way Accelerator Pilot is a diaphragm-actuated
control with three separate ports: Supply, Common and Exhaust.
It is normally installed in the pilot control circuit of an Automatic
Control Valve, with the supply port connected to upstream
pressure, the common port connected to the Main Valve cover
chamber, and the exhaust port vented either downstream or
to atmosphere. Its large
1/2
" ports offer increased capacity, and
allow smaller ported devices, such as a 3-Way Solenoid, Float or
Altitude Pilot, to operate 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 atmo-
sphere (wet drain), causing the valve to open fully.
* The wetted surface of this product contacted by consumable
water contains less than 0.25% of lead by weight.
Specifications
Size:
1/2
"
Body Material:
C87800 Silicone Bronze (std)
CF8M Stainless Steel (opt)
Elastomers:
Buna-N
(std)
Viton™
(opt)
EPDM
(opt)
Inlet Pressure Rating:
400 psi maximum
Model LF22-1
*Included in Repair Kit
Item
Description
1
Nut
2
Lock Washer
3
Upper Diaphragm
4
Diaphragm*
5
Lower Diaphragm Washer
6
Spring
7
Stem
8
Spool
9
O-Ring*
10
O-Ring*
11
Retainer
12
O-Ring*
13
O-Ring Washer
14
Lock Washer
15
Nut
ACV Standard Components - Series LF981GD
Exhaust
Supply
Common
Accelerator Cover
Accelerator Port
Supply
Exhaust
Supply
Common
2
3
5
6
7
8
9
10
11
4
1
12
13
14
15
Top View
Bottom View
Viton™ is a trademark of The Chemours Company FC, LLC
