lock out actuated valves. It is that essential
mechanical block on the linkage preventing valve
operation. One method plant wide. One lockout
procedure ... easy to use ... easy to audit .... reducing human
error ... a common sense element in OSHA 1910 compliance.
So simple, it's patented.
The easily recognized
PCS Safety Green insert clip and gloss black anchor bracket
mount permanently to the actuated valve, using hand tools. After
initial installation, a valve is locked out for maintenance and
unlocked for production, ...again and again ..., in only seconds.
It provides a simple, single method to lockout actuated valves
supplied by a wide range of valve and actuator manufacturers.
A mechanical lockout device
which enhances operational and maintenance SAFETY while adding
VALUE by REDUCING COSTS of installation for all automatically
actuated quarter turn valves
Locking Clip Availability
The following represents a
comprehensive and growing list of actuators for which the "PCS
Locking Clip" has been engineered, tested and manufactured.
All models are available in powder coated carbon steel. Most
can also be provided in powder coated stainless steel. All
models are available with accommodation for topworks. New models
are being regularly added. Contact your Distributor or
Philadelphia Control Systems for all your special actuator
is included in my PCS Locking Clip kit?
The PCS Locking Clip Kit
includes: an ANCHOR BRACKET for mounting to your actuator's
body, the INSERTABLE CLIP with CHAIN LEASH, a COUPLER to a
Westlock or equal indicating limit switch, MOUNTING HARDWARE and
I need special tools?
No. This product is intended to
be installed with conveniently available regular hand tools. You
can retrofit an actuated valve without needing a "flame permit".
Questions and Answers....
have to dismount my actuators from their valves for
This is a major advantage in your use of the PCS Locking Clip.
Does use of the PCS Locking Clip reduce the
number of different lockout methods I must train my work force
to use?Yes. Regardless
of the actuator type to be locked out, AUTOMAX, WATTS,
WORCESTER, NELES-JAMESBURY and so on, use of the "PCS Locking
Clip" is always done in the same way. Many actuators on site,
one method to use. This is essential to reduce human error.
Why is a chain leash attached to the
insertable clip?This ensures that the
right clip is available and located at its matched actuator. The
"PCS Locking Clip" and anchor bracket is an engineered design
tailored to the torque capacity of the largest actuator.
Why is the insertable clip
painted fluorescent green? The
clip and anchor bracket are powder coated for a durable finish.
PCS Safety Green was chosen to make simple the in-use inspection
of the "PCS Locking Clip". The color combination is easy to see
in dark and cluttered (valve dense) areas.
Is the PCS Locking Clip
OSHA "APPROVED"? No.
There is no such approval for any product. OSHA regulates a
plant's practices. These include training, equipment,
documentation and so on. The "PCS Locking Clip" is an important
tool for use in the isolation of pipelines and the lockout of
We use position indicators
with our quarter turn actuators. How does the product work when
position indicators are used?
"PCS Locking Clip" is used in the same way as with open/close
actuator configurations. A topworks coupler is available with
most "PCS Locking Clip" kits. Check with your distributor for
Can we use our own
The fasteners provided with the "PCS Locking Clip" will fit the
actuator and limit switch specified. These provided fasteners
are "GRADE 8" in yield/tensile strength of materials. They are
an integral part of the supplied PCS Locking Clip kit.
Can I continue to use my
indicating limit switches if I use PCS Locking Clips? Yes.
The anchor bracket serves to mount Westlock or equal limit
switches. You don't have to buy a mounting bracket for your
indicating limit switch if it is Westlock or equal.
Origin of the
PCS Locking Clip
Philadelphia Control Systems, Inc. (PCS) is a
Professional Engineering Corporation. It specializes in discrete
manufacturing and process control systems. As a material
delivery item for a turn-key process automation project, PCS
developed for its use a locking device for automatic rotary
actuated valves. The client is well satisfied with the product
in use. A patent was granted by the U.S. Patent Office
establishing the rights of Philadelphia Control Systems, Inc. in
its invention. This device is termed the "PCS Locking Clip".
Advantages in the use of the
"PCS Locking Clip" apply to several groups involved in the
engineering, design, operation and maintenance of facilities
which use automatic actuated valves.
Plant Safety Engineers are provided with an
easy to use device to isolate and immobilize automatic valves at
a significant time savings. In comparison to uncoupling air
supplies, de-energizing and tagging electrical solenoid circuits
and then re-proving the circuits upon completion of the
maintenance task, "PCS Locking Clips" provide superior lock-out
protection in a fraction of the time.
Process Design Engineers are provided with a
low project cycle cost alternative to manual isolation valves
upstream and downstream of the automatic valve, offsetting
manual valve cost, design procurement cost, and installation
This also saves significant space which
simplifies initial installation and follow-on maintainability of
Corporate Standards Groups are provided with
a non-controversial standards improvement. This result is an
easy to understand valve specification "adder" for automatic
Summary: The "PCS Locking Clip" is proven in
use. It's simple to specify, to purchase and install. Most
importantly, it's simple to use. And it is cost justified on
the basis of significant reductions in downtime during