Diaphragm Rupture Detection System - 2 Pages


MILTON ROY

DRDS

PD 4151

Effective 5/1/96

DIAPHRAGM RUPTURE DETECTION SYSTEM

mRoy A with diaphragm rupture detection

system including pressure switch.

GENERAL INFORMATION

Milton Roy's diaphragm liquid ends arc, by design, leakproof and durable. In some

applications, however, added assurance is desired to protect the pump from hostile

chemicals, or protect the process from contamination by hydraulic fluids. For these

situations, Milton Roy has developed a highly reliable diaphragm rupture detection

system.

This system is available for metallic liquid end mRoys, maxRoys, and Centrac or

Milroyal pumps with HPD liquid ends.

An alternate design utilizing conductivity sensing in an intermediate chamber be-

tween two diaphragms is also available for a number of liquid ends.

OPERATION

The system consists of two separate diaphragms, a hollow intermediate ring, and a

pressure switch and/or gauge. During normal operation, the two diaphragms are

pushed tightly together and are separated only around their outside edge by the

intermediate ring. Because there is no fluid and very little air between the two dia-

phragms, the system does not experience pressure from the process when both dia-

phragms are intact. The rupture detection system senses process pressure only

when one of the diaphragms rupture.

Once a rupture occurs, a pressure gauge provides visual indication, or an optional

pressure switch provides contact closure for remote indication.

Diaphragm Rupture Detection System
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    m MILTON ROYDRDSPD4151Effective 5/1/96 Milroyal B HPD liquid end with diaphragm rupture detection system. maxRoy B with diaphragm rupture detection...
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