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Samson 42-24 Скачать руководство пользователя страница 12

12

EB 3003 EN

Operation

Note:

Only a valve balanced by a bellows
can be used for steam control appli-

cations.

Needle valve

· If the regulator tends to hunt,

we recommend installing a SAMSON screw
joint with restriction (needle valve) at the
control line connection of the actuator.

Note:

Needle valves, condensation cham-
bers, excess pressure relief equip-

ment and compression-type screw fit

-

tings can be supplied as required.
These accessories are listed in

u

6

Operation

See Fig. 1 on page 7.

6.1

Start-up

Î

First start up the regulator after mounting
all parts.

Î

Make sure the control lines are open and
correctly connected.

Î

If needle valves are installed in the con-
trol lines, open them before start-up.
Fill condensation chambers with the pro-
cess medium before start-up.

Î

Open the shut-off valves

slowly

prefera-

bly starting from the return flow pipe
side.

NOTICE

Impermissible excessive pressure.
The diaphragm actuator can be dam

-

aged.
The pressure at the actuator must not
exceed the nominal pressure by 1.5

times on testing the pressure of the
plant when the regulator is already

installed. Shut off any external con

-

trol lines before performing a pres-

sure test.

Rinsing the plant

· After filling the plant, first

completely open the consumer and rinse out
the pipeline at full flow rate for several min-
utes. Roughly adjust the differential pressure
set point. Check the installed strainer (e.g. by
measuring the pressure drop). Clean the
strainer, if necessary.

6.2

Adjusting the set point

Type 42-24

· Adjust the required set point by

tensioning the set point springs at the nut

(17).

If small differential pressure set points are to
be adjusted, we recommend using a differ-
ential pressure gauge instead of the two
pressure gauges to monitor the pressure.
Turn the nut (17) clockwise to increase the set
point and counterclockwise to reduce the set
point.

Type 42-28

· Set point fixed to Δp = 0.2,

0.3, 0.4 or 0.5 bar.

6.3

Decommissioning

Preferably close first the shut-off valve on the
upstream side of the valve and then on the
downstream side of the valve.





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Содержание 42-24

Страница 1: ...structions EB 3003 EN Edition July 2015 Self operated Pressure Regulators Differential Pressure Regulators closing Type 42 24 Type 42 28 Type 42 24 Differential Pressure Regulator Type 42 28 A Differe...

Страница 2: ...h if not avoided will result in death or seri ous injury WARNING Hazardous situations which if not avoided could result in death or seri ous injury NOTICE Property damage message or mal function Note...

Страница 3: ...position 9 5 2 Strainer filter 10 5 3 Shut off valve 10 5 4 Pressure gauge 10 5 5 Control line compensation chamber and needle valve 11 6 Operation 12 6 1 Start up 12 6 2 Adjusting the set point 12 6...

Страница 4: ...nformity assessment procedure This declaration of conformi ty can be provided on request This declaration of conformity can be provided on request To ensure appropriate use only use the device in appl...

Страница 5: ...ainst adverse influences such as dirt moisture or frost during storage and transportation Note Before installing the regulator tighten the blanking plug s at the side in the valve body using a suitabl...

Страница 6: ...The position of the valve plug determines the differential pres sure prevailing across the plant The Type 2422 Valve is balanced The forces acting on the valve plug created by the up stream and downs...

Страница 7: ...8 Type 42 24 Type 42 28 2 3 4 5 1 P1 P2 2 1 3 4 5 11 21 13 15 16 17 20 20 19 18 14 12 _ P1 P2 4 16 13 21 20 20 _ 12 15 11 19 18 Type 42 24 Type 2428 Actuator Type 2424 Actuator Type 2422 Valve balance...

Страница 8: ...tor for a fixed set point Type 42 28 These springs can be adjusted externally for an adjustable set point Type 42 24 Control lines 20 mounted on site transfer the high pressure and low pressure in all...

Страница 9: ...NOTICE Incorrectly installed regulator The pressure regulator can be dam aged Make sure the regulator is installed free of stress Do not attach supports if required directly to the valve or actuator...

Страница 10: ...llows the plant to be shut down for cleaning and maintenance and when the plant is not used for longer periods of time 5 4 Pressure gauge Install a pressure gauge both upstream and downstream of the r...

Страница 11: ...an accessories part from SAMSON u T 3095 These control line kits for tapping pressure directly at the valve body already take into account the flow con ditions As a result no special attention has to...

Страница 12: ...be dam aged The pressure at the actuator must not exceed the nominal pressure by 1 5 times on testing the pressure of the plant when the regulator is already installed Shut off any external con trol...

Страница 13: ...ils on faults and how to remedy them can be found in Table 1 We recommend removing the valve from the pipeline When used at high temperatures allow the plant section to cool down to ambient temperatur...

Страница 14: ...he diaphragm see section 7 1 Valve too large for control task Recalculate KVS coefficient Contact SAMSON Differential pressure drops far be low the ad justed set point Valve or KVS coefficient too sma...

Страница 15: ...ct SAMSON s After sales Service de partment for support concerning mainte nance or repair work or when malfunctions or defects arise E mail You can reach the After sales Service De partment at aftersa...

Страница 16: ...ure 9 Differential pressure 10 Set point range 11 Diaphragm material 12 Year DIN version 1 Valve type 2 Model number 3 Configuration ID Var ID 4 Order number or date 5 KVS coefficient 8 Nominal size 9...

Страница 17: ...0 2 to 1 0 5 to 1 5 1 to 2 5 2 to 5 4 5 to 10 3 0 2 0 3 0 4 or 0 5 Actuator area A 80 cm 160 cm 320 cm 640 cm 160 cm 320 cm Pressure above adjusted set point at which internal excess pressure limiter...

Страница 18: ...Balanced by a bellows Type 42 24 Type 42 28 Fig 7 Dimension drawing of Type 2422 Valve balanced by a bellows Type 42 24 with actuator with two diaphragms special version Add approx 55 mm to the overal...

Страница 19: ...D 225 mm A 160 cm 3 D 285 mm A 320 cm 2 D 380 mm A 640 cm Weight 1 in kg 16 16 5 17 5 24 24 5 27 46 51 65 135 185 425 485 Set point range 0 2 to 1 bar Height H 610 685 740 990 1120 1260 Actuator D 22...

Страница 20: ...lanced by a diaphragm Table 3 Dimensions in mm and weights in kg Types 42 24 and 42 28 Balanced by a diaphragm DN 65 80 100 125 150 200 250 Length L 290 310 350 400 480 600 730 Height H 575 595 720 74...

Страница 21: ...EB 3003 EN 21...

Страница 22: ...22 EB 3003 EN...

Страница 23: ...EB 3003 EN 23...

Страница 24: ...SAMSON AG MESS UND REGELTECHNIK Weism llerstra e 3 60314 Frankfurt am Main Germany Phone 49 69 4009 0 Fax 49 69 4009 1507 samson samson de www samson de EB 3003 EN 2018 06 21 English...

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