Emerson YARWAY GS-1 User manual

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YARWAY THERMOCON VALVE TRAP GS-1

INSTALLATION, OPERATION AND MAINTENANCE MANUAL

Basic configuration - Body style double flanged, wafer, lug and buttweld

SECTION 2 - KEY POINT OF WHEN YOU

DISASSEMBLY OR ADJUST EXHAUST

TEMPERATURE

Shut the stop valve of Thermocon valve

before you disassemble or adjust exhaust

temperature.

Disassemble or adjust exhaust temperature

after you confirm that surface temperature of

Thermocon valve is cooled down as cool as you

can touch it by your hand.

If you disassemble or adjust exhaust

temperature without enough cooling,

Thermocon valve does not operate good due to

too much expansion of bellows.

Emerson.com/FinalControl

SECTION 1 - METHOD OF TEMPERATURE

CONTROL

The valve has already been pre-set for a

specific temperature. When changing the

exhaust temperature setting, please follow the

directions as enumerated below;

1. Remove the cap (1).

2. With a screwdriver, turn adjustment screw

(2) then loosen locking nut (3).

3. Gently turn adjustment-screw to the left for

a higher temperature.

Each revolution should bring up the

temperature by 20° C.

4. Gently turn adjustment-screw to the

right when lower temperature is desired.

Each revolution should lower the

temperature by 2O °C.

5. Limit of temperature adjustment is between

5O °C - 1OO °C.

6. Locking nut should be tightened properly

and adjustment screw is fixed in place

with a screw-driver when adjustment is

completed.

7. Insert gasket (13), replace the cap (1).

This completes the adjustment procedure.

VCIOM-15470-EN 20/06

SECTION 3 - TROUBLE SHOOTING

1. In case that exhaust temperature is higher

than set temperature.

a. Loose the cap and locking-nut. Turn the

adjustment screw to downward slowly.

b. If exhaust temperature is not down

after you turn the adjustment screw to

downward, please check followings.

- If disc or seat surface has scratch or not.

- If bellows u

nit is broken or not.

2. In case that exhaust temperature is lower

than set temperature.

a. Loose that cap and locking-nut. Turn the

adjustment screw to upward slowly.

b. If exhaust temperature is not up after you

turn the adjustment screw to upward,

please check followings.

- If disc or seat surface has scratch or not.

- If bellows unit is broken or not.

- If much scale is on screen or not.

When you find scratched disc or seat and

broken bellows etc., replace that parts.

And reassemble Thermocon valve. After you

confirm the point that the disc is touched with

seat slightly, open the stop valve on the steam

line. At last, adjust the exhaust temperature

according to method of temperature control.

YARWAY THERMOCON VALVE TRAP GS-1

INSTALLATION, OPERATION AND MAINTENANCE MANUAL

SECTION 4 - MAINTENANCE

Clean up the internal screen periodically.

When you find broken screen, replace it. At the

same time, please clean up disc and seat.

SECTION 5 - CONSTRUCTION AND MATERIAL

PARTS LIST

No. Item Materials

1. Cap nut Mild steel

2. Adjusting screw Stainless steel

3. Lock nut Mild steel

4. Bonnet Mild steel

5. Seal ring Teflon

6. Gasket Copper

7. Body Forged steel

8. Bellows assembly Stainless steel

9. Screen Stainless stee

10. Valve seat Stainless stee

11. Valve Stainless stee

12. Gasket Copper

13. Gasket Copper

14. Spring Stainless steel

15. Washer Copper

FIGURE 1

unit of Emerson Electric Co. The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed

as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and

conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.

Emerson Electric Co. does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of

any Emerson Electric Co. product remains solely with the purchaser.

Emerson.com/FinalControl

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