beautypg.com

Arts, Rdering – Jordan Valve Mark HPX and HPAX Series Globe & Angle Style Панель управления User Manual

Page 8

background image

-8-

2.

For Mark HPX2D and HPAX2:

2.1.

New piston rings will be delivered in one

piece. The piston ring can be broken in

half by scoring and breaking over a hard

surface such as a table edge. The other

recommended method is to break the

ring with the use of a smooth or

taped jawed vise. Install

the new ring in the vise and apply

pressure until the ring becomes an oval.

Continue applying pressure until the ring

on both sides. If just one side snaps

do not try to rip off the other side.

Apply pressure until the second

side

breaks.

2.2.

Remove the protective covering from the

valve plug and stem assembly.

2.3.

Insert the piston rings into the piston ring

grooves matching the broken ends.

3.

For Mark HPX5T and HPAX5:

3.1.

Install for flow-down applications (see

Figure 4, view A), install the ring with the

open side facing the seat ring end of the

valve

plug.

3.2.

Install the back-up ring (key 28) on the

valve plug (key 22) and secure with the

retaining ring (key 27).

4.

Install the valve plug (key 22) in the cage (key 12)

and place the bonnet gasket (key 19) on

the cage.

5.

After lubricating the bonnet stud threads (key 7)

and the faces of the bonnet hex nuts (key 8),

tighten the hex nuts finger tight.

Note:

If pre-lubricated hex nuts are used, lubrication will

not be necessary. Jordan Valve recommends Never-Seez

Pure Nickel special lubricant or equivalent for lubricating.

6.

Tighten the bolts in a three-step process:

6.1.

Begin by tightening the bolts to 1/4

of the specified normal torque (Table

2) using the standard crisscross

bolting

pattern.

6.2.

Using the same method tighten the

bolts to an additional 1/4 of

the specified normal torque value

(Table

2)

6.3.

Continue tightening bolts to the

nominal torque value from Table 2.

7.

Test the nuts by applying the final torque

value. If the nuts still rotate, tighten all the

nuts again.

8.

Install the packing and the packing box

components following the instructions from

“Replacing Packing”.

9.

Using the actuator instructions mount the

actuator.

10.

If leakage occurs in the packing when the

valve is put back into service, it may be nec-

essary to retighten the packing flange nuts.

P

arts

o

rderIng

Every Jordan Valve Mark HPX and HPAX valve is

identified by a serial number, located on the valve

body. Please quote this number when communicat-

ing with Jordan Valve regarding your valve.

M

ark

HPX

and

HPaX S

erieS

G

lobe

and

a

nGle

S

tyle

C

ontrol

V

alVeS