Model LF51-1
16
ES-A-ACV-LF981GD 2115
© 2021 Watts
LEAD FREE
*
Specifications
Model 51-1
Dual Limit Switch
Size: 2" - 8" NPT
The Model 51-1 Dual Limit Switch provides visual indication of
valve position, as well as remote electrical indication of "valve
open" and "valve closed". The single pole double throw Micro-
Switches can be connected to open or close an electrical circuit
when the valve opens or closes.
The adjustable collars are normally set to contact the trip arms to
indicate "valve open" and "valve closed". The collars can be posi-
tioned on the stem by loosening the set-screws to actuate the
switches at the desired point of valve travel.
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
½ amp. 125 VDC
¼ amp. 250 VDC
½" Conduit Connection
* The wetted surface of this product contacted by consumable water
contains less than 0.25% of lead by weight.
Item
Description
1
Limit Switch
2
Bracket
3
Stem
4
Trip collar
5
Set Screw
6
Cap
7
Wiper Ring*
8
O-Ring*
9
Guide
10
O-Ring*
11
Polypak*
12
Locknut
13
Body
14
Pin
15
Coupling
*Included in Repair Kit
10
11
12
14
6
7
9
13
15
8
5
4
3
2
1
ACV Options and Accessories - Series LF981GD
Parts List
Single Pole Double Throw Switch
Single Pole Double Throw Switch
Common Lug
Normally Open
Normally Closed
Viton™ is a trademark of The Chemours Company FC, LLC
