Technical details

Leak monitoring system

s

Vacuum leak detector type VLR 410 PMMV Si

Laying in multiple lines with distributor block up to max. 25 ba

r

Connection of the leak detector to the distributor block

(Worksheet LDS 8.213)

The individual surveillance spaces of the double-walled pipin

g

lines are connected using the measuring branch MA to the

outlets of the distributor block. When laying in multiple lines,

the double-walled piping may have high and low points a

s

described in Worksheet LDS 8.214 for laying in a single line,

as long as the sum of the high and low points does no

t

exceed 3.5 m

.

MA

measuring branch

AV

connection fitting

PV

test valve

KP

crosspoint

MV

solenoid valve

BV

ventilation valv

e

GD

three-way stopcock

VT

distributor bloc

k

FL

fluid barrier

F

L

shut

BV

GD

ope

n

K

P

F

L

VT

P

V

A

V

MA

A

V

PV

A

V

PV

A

V

At PB > 5 bar up to max. 25 bar a solenoid valve MV mus

t

be installed between the crosspoint KP and the connectio

n

to the distributor block VT

.

The solenoid valve protects the leak detector from non-

permissible high pressures. The solenoid valve is monitore

d

electronically so that a failure of the solenoid valve triggers

the alarm

.

M

V

FL

FL

FL

VT

31.03.2026 Subject to technical changes. Page 13

LD

S

8.218

F

L

M

A

A

V

F

L

MA

AV

m

a

x

.

3

.

5

m