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GB-3

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GB

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NL

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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 

lever. On the JSAV..R, only secure the valve by 
holding the octagon at the inlet or outlet with a 
suitable spanner. Risk of external leakage.

–   Max. inlet pressure p

e max.

 4 bar (58 psig).

–   Installation in the vertical or horizontal position, 

never upside down.

  1 

The housing must not be in contact with masonry. 
Minimum clearance 20 mm (0.78"). Ensure that 
there is sufficient space for installation and adjust-
ment.

  2 

JSAV..R: seal pipe with approved sealing material.
JSAV..F: insert seal between pipe and unit.

   

Remove screw caps or adhesive foil from the inlet 
and outlet on the JSAV.

Note direction of flow.

JSAV 25 – 40

JSAV 50 –100

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.

To prevent the VSBV from being unintentionally 

shut off, we recommend removing the manual 
valve lever after commissioning and attaching 
it to the pipe.

 JSAV

Connecting the impulse line

JSAV 25 – 40

The connection flange is suitable for an impulse 

line with a pipe diameter of 8 mm.

2

1

3

4

    Push union 

nut and 

compression 

fitting onto 

the impulse 

line.

On the JSAV..T, remove the blind plug and con-
nect an NPT 

1/8

 

impulse line. 

JSAV 50 – 100

Remove the blind plug and connect an Rp ¼ 
(NPT ¼) impulse line.

JSAV

  5 

Install the impulse line and seal with an approved 
sealing material.

Ensure that there is sufficient tube length for the 
impulse line.

 _>  5DN

 JSAV

Summary of Contents for JSAV

Page 1: ...qualified gas technicians Electrical interventions may only be carried out by qualified electricians Conversion spare parts All technical changes are prohibited Only use OEM spare parts Transport On...

Page 2: ...e inlet and outlet Part designations JSAV 25 4 1 2 6 7 5 3 JSAV 40 1 2 9 7 6 5 8 3 4 1 Measuring unit 2 Breather screw plug 3 Reset cap 4 Impulse line connection 5 Inlet 6 Outlet 7 Arrow of direction...

Page 3: ...on and adjust ment 2 JSAV R seal pipe with approved sealing material JSAV F insert seal between pipe and unit 3 Remove screw caps or adhesive foil from the inlet and outlet on the JSAV Note direction...

Page 4: ...open see Resetting p 5 Ensure that the breather screw plug is screwed in 2 Close all manual valves at the inlet and outlet and in the relief line CAUTION Please observe the following to ensure that th...

Page 5: ...brown 0 308 906 4 120 220 1 74 3 2 crimson 0 308 906 5 190 400 2 8 5 8 orange yellow 0 308 906 6 300 550 4 35 8 orange green 0 308 906 7 Standard spring 2 Remove the breather screw plug JSAV 25 40 3 4...

Page 6: ...th the valve disc assembled 1 O ring and 4 screws are enclosed 2 Detach the impulse line from the JSAV 4 5 3 Ensure that the O ring is fitted in the new measur ing unit see Figure 5 6 Follow the rever...

Page 7: ...lacing all seals 2 Detach the impulse line from the JSAV 5 15 9 4 3 6 7 10 8 11 10 12 16 13 14 First insert the washer into the valve disc and then the O ring 17 15 18 19 16 14 Ensure that the O ring...

Page 8: ...ring unit must be at the bot tom when the JSAV is closed If the JSAV is open apply pressure to the impulse line to close the valve 2 Detach the impulse line from the JSAV 7 6 4 5 3 Press the reset lev...

Page 9: ...GGG 40 Diaphragm NBR valve seat aluminium valve stem stainless steel valve disc JSAV 25 40 steel with vulcanized NBR seal JSAV 50 100 aluminium with vulcanized NBR seal Service life The Pressure Equip...

Page 10: ...eclare that the prod ucts JSAV 25 40 marked with product ID No CE 0085AS0202 and JSAV 50 100 marked with the product ID No CE 0085AR0246 comply with the requirements of the listed Directives and Stand...

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