Southern Folger 51P User Manual
FA Rev. 02-10 B9
For more information, please call 210.533.1231.
Description______________
Series 51P Deadlatches are levertumbler, pneumatically-operated locks
for swinging doors. Specify keying as
follows:
52P Five-tumbler lock,
keyed cover side.
52P-6 Six-tumbler lock,
keyed cover side.
56P Five-tumbler lock,
keyed both sides.
56P-6 Six-tumbler lock,
keyed both sides.
Applications_____________
51P Deadlatches are designed for jambmounted installation, and provide
maximum security for heavily-used cell,
corridor, or entrance doors. They
provide the convenience of slamlocking with remote unlocking.
Operation_______________
Standard (1): When connected to a
momentary-contact switch, the latchbolt
retracts when the pneumatic solenoid is
energized. Once retracted, the latchbolt
is held mechanically retracted until the
door is opened. The latchbolt extends
when the door is open.
Standard (1a): When connected to a
maintained-contact switch, the latchbolt
retracts when the pneumatic solenoid is
energized. Once retracted, it is held
electrically retracted for an extended
period of time. The latchbolt extends
only when the door is open and the
solenoid is de-energized.
No-notch (2): Latchbolt
extends when the switch
is selected to lock.
(No-notch feature, see
description on page B10.)
Standards
Compliance___
All 51P Series Models are
UL1034 listed as BurglaryResistant Mechanisms.
ASTM F-1577
Grade 1 – Impact.
Standard
Features_______
Pneumatic solenoid
voltage – 24VDC.
Two-piece plug
connector – Simplifies
wiring.
External air coupler – Allows air
system connection to lock without
removing covers.
Instant solenoid operation –
Dependable, continuous-duty
pneumatic solenoid.
Automatic deadlocking – When the
latchbolt is extended, it automatically
deadlocks on closure.
Full 3/4" bolt throw – Projects 1/4"
when retracted.
Mechanical unlocking by key –
During power failure, or any time the
lock unlocks by use of prison
paracentric key. Latchbolt remains
retracted until relocked by key.
High security – 6-tumbler model
offers greater pick resistance.
Indication switch – A lock status
indication switch which monitors the
extension of the latch bolt and the
deadlocked condition is included.
Rugged construction – Case and
cover are 7 gauge steel.
Solid steel latchbolt – Latchbolt is
zinc plated steel, concealed pins resist
sawing.
Deadlock actuator – Roller-type, zinc
plated steel, adjustable for variations
in door-to-jamb clearance.
Finish – Zinc plated.
FOLGER ADAM PNEUMATIC LOCKS
Key: Prison Paracentric
Door: Swinging
Security
Level: Maximum
51P DEADLATCH
Right
hand
shown.
B10 Printed in USA FA Rev. 02-10
P.O. Box 2021, San Antonio, TX 78297 Ph: 210.533.1231 Fx: 210.533.2211
Web: www.SouthernFolger.com
Email: info@southernfolger.com
Optional Features________
Bolt projection – Standard 1/4" when
retracted 3/4" bolt throw. Consult
factory for other projections.
No-notch feature – The holdback
lever has no notch to hold the
latchbolt mechanically retracted. The
latchbolt extends in the locked
position regardless of the position of
the door.
Interlocking – Accomplished through
the control console.
Manual air release system – Allows
for the manual release of doors or
groups of doors from a remote
location. Latchbolt remains retracted
until system is manually reset. Specify
MARS.
Specifications_________
Case and cover – 7 gauge steel.
Latchbolt – Solid steel, with
hardened steel roller pins.
Deadlock actuator – Zinc plated
steel, roller-type.
Lever tumblers – spring-temper
brass, activated by heavy
phosphor-bronze springs.
Key cylinder – One-piece,
bronze alloy with paracentric
keyway.
Bolt size – 2" x 3/4".
Bolt throw – 3/4"
Electrical
Characteristics________
Pneumatic solenoid voltage –
24VDC with 5.4 watts power
consumption; 2.4 watts on MARS
option.
Indication switch – SPDT, UL
Listed.
Dimensional Data_______
Note: Dimensions are for information
and planning purposes only and should
not be used as templates.
FOLGER ADAM PNEUMATIC LOCKS
Key: Prison Paracentric
Door: Swinging
Security
Level: Maximum
51P DEADLATCH
OPERATION KEYING
WITH INDICATION
SWITCH
MARS
Standard (1)
One Side 52PL Available
Two Sides 56PL Available
No-Notch (2)
One Side 52PLNN Available
Two Sides 56PLNN Available
How to Specify________________________________________
NOTE: The above are standard 5-tumbler models. To specify 6-tumbler units, add 6 after the basic
model number. Example: 52P-6-LL.
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