1
*AIR OR GAS
Sales Manual Section 332
PRODUCT SPECIFICATION PS 83939-E
Lockout Relay
83939-E1
B. Mounting
When installing the No. 83939-E 1 Lockout
Relay,
care should be taken to prevent any foreign matter
from entering the ports. Provisions should be
made to
prevent foreign matter from entering the ports
which are left open to the atmosphere.
The relay may be installed in any position, but
vertical (upright) is recommended. The relay
should be
securely mounted, using the two slots (clearance
for No. 10 screws), provided in the mounting
bracket (See Figure 1).
J. I. C. Symbol
Form No. P-2317 (Rev. B)
GENERAL DESCRIPTION
The No. 83939-E1 Lockout Relay is a two-way,
diaphragm-actuated, non-venting, normally open
valve. It is used in the safety system to lock out or
block certain portions of the control system or a line in
a control system upon receipt of a signal at PORT 1.
(See Figure 1). It will reopen with the loss of pressure
at PORT 1, and has a connection which may be used to
cancel the actuating pressure at PORT 1.
SPECIFICATIONS
Construction:
Aluminum body; stainless steel cover,
bracket and springs; elastomer coated fabric
diaphragms and gaskets; stainless steel and
aluminum valve with resilient seat.
Supply Pressure:
...........................................
See Figure 2.
CAUTION: DO NOT EXCEED MAXIMUM PRESSURES
Maximum Pressure:
......................................
See Figure 2.
Mounting:
.................................................................
Surface
Dimensions:
...................................................
See Figure 1.
Connections:
................................................
1/8"-27 NPT.
Approximate Shipping Weight:
.............
12 ozs. (.340 kg)
Ordering Information:
Specify: No.
83939-E1
INSTALLATION
A. General
Tubing and fittings used to connect the relay
must be free of chips, dirt, and moisture or other
foreign material.
It is recommended that an "anti-seize" type
thread compound be applied to the second or third
male thread in moderate amount. Do not allow
compound to be deposited inside the relay. Thread
sealing tape is not recommended.
For continuous, trouble-free operation, the
supply to the relay must be clean and dry.
