Pinch Clamp Connection; Tubing Style Pinch Clamp - Thermo Scientific HyPerforma 5.1 S.U.B. Hardware Integrator Manual

9
Chapter 9 |

Pinch Clamp Connection

Pinch clamp
connection
This section provides information for third-party integrators on how
to interface with the pinch clamp connection. There are currently two
variations of pinch clamps offered by Thermo Scientific. Both options
are pneumatically actuated, and they come with a solenoid 24 VDC
solenoid valve to control the actuation. The pinch clamps are currently
used to isolate a spare exhaust filter so that if the main filter has a
fowling issue, the lineset or film of the spare filter will automatically
open, thus keeping the internal pressure of the BPC at a safe level.
The first type of pinch clamp connection is used to clamp tubing that
is typical of the BPC. It will clamp up to 1-inch diameter tubing. The
second type of pinch clamp connection is used to clamp the film
manifold that is typical on the BPC used with S.U.F. systems. It will
seal a 2-D film manifold that is 5.375 inches between the two mounting
pins.
The Thermo Scientific e-box does not support the pinch clamp, so
there is no difference of integration based on the presence of the
e-box. It is recommended that the pinch clamp be interlocked with the
pressure feedback. It should open at a pressure that is less than 0.5
psi, depending on customer requirements.

9.1 Tubing style pinch clamp

The pinch clamp's tubing is pneumatic, with a spring-close feature. It
is supplied with a 24 VDC solenoid valve. A 24 VDC signal is required
to energize the valve and open the clamp. Figure 9.1 shows a typical
pneumatic pinch clamp.
Thermo Scientific Single-Use System integrator's Guide | 53