Emerson YARWAY Series Instruction, Operation And Maintenance Manual

YARWAY SERIES 129Y-III, 29S DISC TRAP
INSTRUCTION, OPERATION AND MAINTENANCE MANUAL
Before installation these instructions must be fully read and understood
The Yarway Series 129Y-III and 29S Impulse
Steam Traps are designed for applications
such as trace lines, steam line drips, steam
jacketed fittings, small press platens, laundry
and dry cleaning and similar light to moderate
condensate load service.

SPECIFICATION

Ratings and capacities
Operating pressure / temperatures:
129Y-III 2.8 MPa
29S 2.0 MPa
Minimum capacity:
Following will be obtained at 0.7 MPa near
saturation temperature.
129Y-III ⅜", ½"
¾", 1"
29S ¼"
Connections:
129Y-III ⅜", ½", ¾", 1"
29S ¼"
Backpressure limits:
129Y-III ⅜", ½"
¾", 1"
29S ¼"
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CAUTION
General safety precautions
1. Yarway Series 129Y-III and 29S Steam Trap
must be installed correctly. Do not operate
the product at such conditions that exceeds
its maximum allowable pressure and/or
temperature. Direct injury to personnel or
damage to equipment which can cause injury
to personnel may result if this precaution is
not followed.
2. Do not operate the product when inlet
pressure exceeds the product's maximum
allowable inlet pressure. Direct injury or burn
to personnel by means of hot drain may result.
3. Removal from piping and dismantling must
be done after the product's inner pressure is
atmospheric and skin temperature is ambient.
Direct injury or burn to personnel by means of
fluid may result in, if the product is subject to
pressure or temperature.
4. Yarway recommends the use of only Yarway
manufactured or supplied parts to maintain or
service Disc Traps. Do not modify the product
regardless it is partially or totally.
5. Do not fasten connecting bolts with excess
torque value.
6. To prevent the product from being frozen,
discharge remaining drain out of the plug.
Frozen condensation may result in damage
on the product.
7. Piping arrangement and operating sequence
400°
must be considered not to cause water
400°
hammer and its shock.
370 kg/h
840 kg/h
160 kg/h
Rc, NPT, SW
Rc, NPT
70%
50%
70%
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VCIOM-15469-EN 20/06