Jordan-valve Mark DBAQ Series Angle Style Control Valve Manual de usuario descargar pdf (Pagina 5)

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Replacing Packing Continued,

15. Install the packing follower, wiper and packing

ﬂange. Lubricate the packing ﬂange

studs (key 17) and faces of the packing

ﬂange nuts (key 18). Replace packing

ﬂange nuts.

16. For spring loaded PTFE V-Ring packing, tighten

the packing ﬂange nuts until the shoulder on the

packing follower (Key 21) contacts the bonnet.

For other packing types, tighten the packing

ﬂange nuts in small increments alternately.

Repeat until the maximum recommended

torque is reached, shown in Table 2.

17. Mount the actuator on the valve body and

reconnect the valve plug stems according

to the appropriate actuator instruction

manual.

Valve Size

Valve

Rating

ASME

Class

Lbf•Ft N•m

1 1500 130 176

2500 191 259

2 1500 104 141

2500 281 381

Table 2: Recommended Torque for Body to Bonnet Bolting

Mark DBaQ SerieS angle Style Control ValVeS

1 2 3 4 5 6 7 8

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Jordan-valve Mark DBAQ Series Angle Style Control Valve Manual de usuario Pagina 5