Checking The Usage; Type Code; Part Designations; Type Label - Krom Schroder JSAV 50 Operating Instructions Manual

Checking the usage

JSAV

Safety shut-off valve for securing downstream fittings
against excess gas pressure.
This function is only guaranteed when used within
the specified limits – see page 7 (Technical data).
Any other use is considered as non-compliant.

Type code

Code
JSAV
50 – 100
F
A
40 Inlet pressure p
/1
-0

Part designations

2
3
4
1
Measuring unit
2 Breather screw plug
3 Impulse line connection
4 Inlet
5
Outlet
6 Arrow of direction of flow
7 Reset
8 Arrow of direction of reset
9 Reset lever

Type label

Max. inlet pressure, upper trip pressure p
temperature: see type label.
D-49018 Osnabrück, Germany
JSAV
Description
Safety shut-off valve
Nominal size
Flange to ISO 7005
ANSI flange
= 4 bar (58 psig)
u max.
Trip pressure p
Without pressure test point
1
7
5
8
9
6
, ambient
do
P max:
u
Wh :
o
p :
do
AGo: +/- 10%
TS=

Installation

CAUTION
Please observe the following to ensure that the
JSAV is not damaged during installation:
– Sealing material, cuttings and other impurities
must not be allowed to get into the housing.
– We recommend installing a filter upstream of the
JSAV in order to protect it against impurities in
the pipe.
– The installation location must be dry. Do not
store or install the JSAV in the open air.
– Install the JSAV in the pipe free of mechanical
stress.
– Do not clamp the unit in a vice or use it as a
do
lever. Risk of external leakage.
– Max. inlet pressure p
– Installation in the vertical or horizontal position,
never upside down.
1 The housing must not be in contact with ma-
sonry. Minimum clearance 20 mm (0.78"). Ensure
that there is sufficient space for installation and
adjustment.
2 Insert seal between pipe and unit.
3 Remove the adhesive foil from the inlet and outlet
on the JSAV.
▷ Note direction of flow.
▷ We recommend installing a manual valve AKT 25
in the pipe leading to the safety relief valve
VSBV 25, so that the annual function check of
the safety shut-off valve JSAV can be carried out
without having to remove it.
GB-2
4 bar (58 psig).
u max.