Flowserve UNA 38 Manual do Utilizador descarregar pdf (Página 17)

Retroﬁtting

GESTRA steam traps can be retroﬁtted with different control units.

WINIX

2150 is a registered trademark of WINIX GmbH, Norderstedt

Cleaning /exchanging the control unit

1. Take heed of the “Danger” note on page 4.

2. Undo the hexagon nuts

A, remove the sleeves B from the expansion bolts P, and take off

the cover M.

3. Undo the union nut

X and take it out of the body together with the control unit E, r or ; (UNA 38);

alternatively, undo and remove the hexagon socket-head screws T, and take out the control unit

r or ; (UNA 39).

Replace the control unit in case of visible signs of wear or damage.

Clean the body, internals and all gasket surfaces.

Apply heat-resistant lubricant to all threads and the seating surfaces of the control unit and cover

(use e.g. WINIX

2150).

Attach the control unit E, r or ; (UNA 38) with the union nut and align it within the body so that the

ﬂoat ball can move vertically. Tighten the union nut. Insert a new gasket U for control unit r or ;

(UNA 39), put on the control unit and tighten the hexagon socket-head screws T evenly crosswise.

For the torques, see the table “Torques” on page 16.

Insert a new body gasket Q.

Put the cover onto the body and push the sleeves B onto the expansion bolts P. Tighten the

hexagon nuts A evenly crosswise in several stages to the values speciﬁed in the “Torques” table.

2 2

Tools

n Combination spanner A.F. 17, 19, 22, 24, 30, 46 mm to DIN 3113, form B

n Allen key A.F. 5, 8 mm to ISO 2936

n Torque spanner 10–60 Nm, 60–120 Nm, 120–300 Nm to DIN ISO 6789

Torques

Item Designation

Torque [Nm]

UNA 38 UNA 39

Hexagon nut

270 340

Hexagon-socket screw (UNA 39)

Union nut (UNA 38)

120

Expansion bolts

20 20

Bimetallic air vent

Hand vent valve

70 170

Float lifting lever

110

Plug

70 170

Plug

110

1 2 ... 12 13 14 15 16 17 18 19 20

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