Lockwood Pentagon 3P78 Holdback Deadlatches

Description

High security cylinder mortice locks and latches providing the latest in design and functionality. Suitable for heavy duty use in industrial and commercial buildings, institutions, clubs, schools, hospitals, hotels and similar buildings.

A deadlatching lockset for applications where latch holdback is required such as high use doors and toilet doors.

Features and Benefits

  • Ability to change lock function and handing without removing the lock from the door
  • Easy in-door commissioning
  • One universal cylinder cam performs all locking functions
  • Australian designed and manufactured, the 3P70 Series Cylinder Mortice Locks are made from high quality materials
  • to meet high durability and strength requirements
  • 35 degrees of lever rotation required to fully retract latch and auxiliary bolt
  • Latch holdback is engaged when latch is depressed and key rotated 90 degrees
Standards

HIGH SECURITY

Conforms to level SL8 Australian Lock Standard (AS4145.2-2008) when fitted with door furniture and anti drill cylinder.

DURABILITY
Exceeds level D8 (Durability) Australian Lock Standard (AS4145.2-2008).

ANTI-CORROSION
All 3P70 Series locks meet C6 (168 hrs) Australian Lock Standard (AS4145.2-2008).

FIRE RATING
3P78 Holdback Deadlatches are non-fire rated.

Specification

Furniture

Compatible with all Lockwood rose and plate furniture including Brass Door Furniture, Daintree, Robert Watson, Artefact Series II and Ovation series.

Aluminium Doors
For aluminium doors add 3P72-AF01SS for mounting tabs accessory pack and fabricator face plate.

Face Plates

  • 2.5mm stainless steel face plates
  • Brass face plates provided for plated finishes
Case

Galvanised steel for increased strength and corrosion protection

Backset

  • 60mm standard backset
  • For extended backsets (89 and 127mm) refer to Synergy 3570 Series Mortice Lock Ordering Procedure
Latchbolts
  • Latchbolts are 15mm, stainless steel
  • Deadlatching is achieved by a stainless steel auxiliary bolt Strike Plate
  • Universal 1.5mm stainless steel strike
Springs
  • High grade spring steel material, corrosion protected Cylinder Retaining Pin
  • Hard-drawn spring steel wire, corrosion protected. Uses "slip pin" method
Door Thickness
  • 32mm to 50mm

Accessories to accommodate thicker doors are available.

Door Clearance
To ensure correct functioning of the deadlatching mechanism and security for all locks, the clearance between the door and the frame should be 3mm.

Aluminium Doors
Aluminium door accessory packs are available upon request. Specify 3P72-AF01SS for mounting tabs accessory pack.

Cylinder
Bump resistant five pin tumbler mechanism. Standard Lockwood oval shaped brass cylinders and brass barrels.

Unique universal cam drives all lock functions. Turn adaptors may be required depending on function.

Extended Cylinders
Modular cylinder extensions are available for various door thicknesses.

Keying
Standard Keying

  • Supplied individually keyed with two keys per cylinder
  • 78000 key combinations
Restricted Special Keying

Lockwood locks can be keyed to a number of controlled and/or specially keyed systems. These range from legally protected keys to protect against unauthorised duplication and can also include specially designed keying systems such as master key systems. This allows for different levels of mechanical access control.

Standard Finishes

  • Stainless Steel SS
  • Chrome Plate CP
  • Polished Brass PB
Rebate

Rebate kits to suit 13mm standard rebate are available.

Product Codes
3P78
- Holdback Primary Lock
3P78T - Holdback Primary Lock with Standard Turn Adaptor

Note: Cylinders must be purchased separately.

More Information

Pentagon Series Mortice Lock Catalogue Section

Pentagon Series Mortice Locks Catalogue Section (.pdf, 3.6 MB)

Pentagon Series Service Manual

Pentagon Series Service Manual (.pdf, 6.2 MB)

Pentagon Series Conversion Wall Chart

PentagonSeriesChart LORES - V2 (.pdf, 1 MB)

3P72 DXF File

3P72 (.dxf, 1.5 MB)

Published 9 Jun 2009

Print

Pentagon Animation

Pentagon Animation

Click to view

Pentagon Features

Take a closer look