Val-Matic Surgebuster Check Valve - Manual (Page 6)

MECHANICAL INDICATOR (OPTIONAL)
The mechanical indicator is an option that fits into
the cover and can easily be installed in the field by
going through the following steps. The mechanical
indicator is used to visually indicate when the valve
is opened or closed.
1. Remove line pressure and drain valve.
2. Score the coating around and remove the pipe
plug from the cover.
3. Apply pipe joint compound to indicator body (21)
threads.
4. Insert the indicator body (21), without the
indicator plate (27), into the valve cover and
tighten. Make sure that two of the tapped holes
in the indicator body (21) are aligned with the
valve and pipeline. This will ensure proper
orientation of the indicator plate.
5. Remove the two socket head screws (31) from
the indicator body (21).
6. Slide the indicator plate (27) over the indicator
rod (23) and spring (28).
7. Align the indicator plate (27) as shown on the
back of this card and secure with the 5mm
socket head screws (31).
8. Connect the spring (28) to the indicator plate (27)
notch
FIGURE 4. MECHANICAL INDICATORASSEMBLY
LIMIT SWITCH (OPTIONAL)
The limit switch is used in conjunction with the
Mechanical Indicator. The standard limit switch is
MICROSWITCH Model Number 914CE20-3. The
limit switch is SCADA (Supervisory Control and
Data Acquisition) compatible for applications
requiring open/close indication.
NEMA Ratings: 1, 2, 4, 6, 6P, 12, 13
UL Ratings: 5 AMPS, 1/10 HP, 125 or 250 VAC,
SPDT
Installation:
1. Attach limit switch assembly to indicator using
the supplied screws (34) and bracket (31).
2. Position the assembly so that the switch trips
when the valve is closed.
3. Connect wiring to either the normally open or
normally closed contact as shown in the
schematic diagram.
FIGURE 5. LIMIT SWITCH ASSEMBLY
WARNING
Removal of the pipe plug while under
pressure may cause bodily harm.
Mechanical Indicator Parts List
Item Description Material
21 Body Brass
22 Bushing Brass
23 Rod Stainless Steel T316
27 Plate Stainless Steel T316
28 Spring Stainless Steel T302
32 Screws Stainless Steel T316