Dwyer VPI - Manual

Bulletin V-37
The Series VPI Rotary Valve Position Indicators are compact
yet rugged for confined and severe locations. These versatile units
offer visual position indication as well as two internal limit switch-
es. The spring-loaded splined cams require no tools for a quick
and precise adjustment. The Series VPI is available with mechan-
ical or proximity limit switches. The mechanical models feature two
SPDT limit switches. The proximity models feature two solid-state
inductive limit switches eliminating the need for the cams to make
contact with the switches. The NEMA 6 (IP67) rating ensures pro-
tection against the ingress of liquid and debris.
ASSEMBLY
DWYER INSTRUMENTS, INC.
Phone: 219/879-8000 www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46361, U.S.A. Fax: 219/872-9057 e-mail: [email protected]
SPECIFICATIONS
Minimum Rotation Travel: 60°.
Maximum Rotation Travel: 360°.
Temperature Limits: -4 to 176°F (-20 to 80°C).
Switch Type: VPI-M: (2) mechanical SPDT limit switches; VPI-
P: (2) Inductive proximity limit switches.
Electrical Rating: VPI-M: AC: 3A at 250 V, 5A at 125 V; DC:
0.2A at 250 V, 0.4A at 125 V, 4A at 30 V.
Power Requirements: VPI-P: 12 to 24 VDC, 30 VDC
maximum.
Enclosure Material: Aluminum die-casting.
Electrical Connections: 8-contact screw terminal strip.
Conduit Connection: (2) 1/2˝ female NPT.
Enclosure Rating: NEMA 6 (IP67).
Mounting: NAMUR.
Weight: 1.9 lb (0.88 kg).
Specifications - Installation and Operating Instructions
Series VPI Valve Position Indicator
EXPLOSION
BASE BODY
TERMINAL
BASE COVER
INDICATOR
INDICATOR COVER
MECHANICAL SWITCH
ASSEMBLY
MAIN SHAFT
ASSEMBLY
W4 W3
L1
L2
3-27/32
[97.5]
1-61/64
[49.8]
2-25/32
[70.8]
3-51/64
[96.5]
1/2 NPT
4-3/4
[120.5]
BRACKET
H
Model
VPI-B01
VPI-B02
VPI-B03
VPI-B04 H in (mm)
1-13/64 [30.5]
1-19/64 [40.5]
1-19/64 [40.5]
2-3/8 [60.5] L1 in (mm)
3-5/32 [80]
5-1/8 [130]
L2 in (mm)
3-15/16 [100]
5-29/32 [150]
W3 in (mm)
1-3/16 [30]
W4 in (mm)
2 [50]
Bracket Dimensions
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