Robertshaw 83939-E1 Manual

GENERAL DESCRIPTION
The No. 83939-E1 Lockout Relay is a two-way,
diaphragm-actuated,
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
Aluminum body; stainless steel cover,
Construction:
bracket and springs; elastomer coated fabric
diaphragms and gaskets; stainless steel and
aluminum valve with resilient seat.
Supply Pressure: ...........................................
CAUTION: DO NOT EXCEED MAXIMUM PRESSURES
Maximum Pressure: ......................................
Mounting: .................................................................
Dimensions: ...................................................
Connections: ................................................
Approximate Shipping Weight: .............
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.
Form No. P-2317 (Rev. B)
non-venting, normally
See Figure 2.
See Figure 2.
See Figure 1.
1/8"-27 NPT.
12 ozs. (.340 kg)
open
Surface
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).
1
Sales Manual Section 332
PRODUCT SPECIFICATION PS 83939-E
Lockout Relay
83939-E1
*AIR OR GAS
J. I. C. Symbol