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Valves
2
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Operation
Factory Test
Panel mounting
Choice of StemTip
• Pressure rating up to 5,000psig (345bar) @100°F (38°C)
• Temperature rating up to 450°F (232°C) with standard PTFE packing; up to 600°F (315°C) with optional PEEK packing
• Panel mounting without packing disruption
• Standard SS316 and Brass material valve construction
• DK-Lok Gap gauge allows easy inspection for sufficient tube pull-up before a system is pressurized
• Valves for Sour Gas Service meeting the requirements of NACE MR0175 are available
Every valve is tested with the nitrogen @1,000psig (68bar) for leakage at the seat to a maximum allowable leak rate of 0.1 SCCM.
The packing is tested for no detectable leakage.
How to mount the valve on panel.
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Panel hole drill and thickness mm (
in
)
Valve
Series
Panel
Hole Drill
Panel Thickness
Min.
Max.
V15A 13.5 (
0.53
)
3.17
(
0.125
)
6.35
(
0.25
)
V15B 13.5 (
0.53
)
V15C 20.0 (
0.79
)
V15D 26.2 (
1.03
)
Disassembly
1.Un-tighten the handle set screwusing an allen key and remove the handle.
• Handle Set Screw Allen Key
Valve Series
Allen Key
Round Handle
Bar Handle
V15A & V15B
Hex.2.5mm
Hex. 4.0mm
V15C
Hex.3.0mm
V15D
Hex. 5.0mm
2.Remove the packing nut & panel nut and set aside for later use.
3.Place the valve bonnet in the panel hole.
Reassembly
4. Tighten the panel nut onto the valve bonnet.
Keep the panel nut always on the external portion of the panel.
5. Finger tighten the packing nut onto the valve body.
6. Place the round handle on the stem. Align the set screw with the
groove on the side of the stem. Tighten the set screw.
7. Fully close the valve and retract the stem two or three turns before
torque the packing nut to the torque below.
• Packing Nut Torque Table
Valve Series
Torque
lbf · ft
kgf · cm
V15A, V15B
5.2
71.9
V15C
10.6
146.6
V15D
25.1
347
Vee Stem
Regulating Stem
Non-Rotating Soft Seat
Metal to metal Vee stem for pressure tightness
at elevated temperature.
Regulating stem for flow rate control
Non-rotating PCTFE soft seat for repetitive shut-off on gas.
• Round Handle is recommended for soft seat valve.
Note
: Soft seat packing adjustment may be required during service to compensate the physical compression of soft seat after repeated shut-off.
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V15 Series
NeedleVales