V5011PTWO-WAYTHREADEDGLOBEVALVE
APEN0H-003TW01A0604
6
Mounting
The preferred valvemounting position iswith the stem
vertical. For steam applications,mount with the stem at a 45
degree angle. Do not mount the valvewith the stemmore
than 90 degrees from the vertical (pointing lower than
horizontal). Scale and foreignmaterial can collect, scoring
the stem and causing packing leakage. Protect the stem from
damage due to bending or scratching.
IMPORTANT
1. Before installing linkageand actuator, make sure that
the valve stem operates freely. Impaired stem operation
can indicate that the bodywas twisted or the stemwas
bent. Either of these conditions can require valve
replacement.
2. Align pipes squarelywith valve at each end connections.
3. If the pipes are forced into the valve, the body can
become twisted and improper seating can result.
4. Apply pipe dope sparingly.
5. Be careful to prevent pipe debris, such as chips and
scale, from entering the piping because thismaterial can
lodge in the seat and prevent proper closing.
NOTE: Threading on threaded bodies conform toBSPT.
Refer to the table inFig. 4 for valve pipe sizes and thread
lengths. Fig. 4 also shows two effectivemethods of holding
the valve and pipewhen attaching it. Refer to installation
information furnishedwith the linkage andmotor when
installing these controls.
