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Valves
DK-LokTubeFittingCerti cationListing
DK-LokValveCerti cationListing
QualitySystemApprovals
No.V16-6
November 2013
V16 Series Severe Service
Union Bonnet Valves
Pressure Rating up to 6,000psig (413 bar)
Features
Factory Test and Cleaning
Technical Data
Materials of Construction
• Pressure Rating up to 6,000 psig (413 bar) @ 100°F (38 °C).
• Temperature Rating up to 449°F (232°C) with standard PTFE packing; up to 1,200°F (648°C) with Grafoil packing.
• Standard 316 stainless steel, optional Alloy 400, and Alloy C276 construction.
• Valve stem back seating against the bevelled edge of bonnet in fully open position prevents maximum leakage through bonnet
when packing fails.
• Standard non-rotating stem disc and stem packing below the threads design.
Every valve is tested with the nitrogen gas @ 1,000 psig (68.9 bar) for leakage at the seat to a maximum allowable leak rate of 0.1
SCCM. The packing is tested for no detectable leakage. Optional hydrostatic shell test with additional cost is performed with pure
water at 1.5 times the working pressure. Every valve is cleaned and packaged in accordance with DK-Lok cleaning standard DC-01.
Ratings below are for valves with standard PTFE packing. Refer to valve ratings with optional packing on Page 3.
Valve Material
StemDisc Designator
Temperature
Rating °F(°C)
Pressure Rating
@ -65 to 100°F (-53 to 38°C)
SS316
Alloy 400
Alloy C276
Globe: Nil.
Regulating: -R
Ball: -B
-65 to 450 (-53 to 232)
6,000 psig (413 bar)
Component
Valve Body Materials
SS316
Alloy 400
Alloy C276
Material Grade/ASTM Specification
1. Bar handle
SS316/A276, optional anodized aluminum handle
2. Set screw
SS304, Grade B8/A193
3. Packing bolt
SS316/A276 or A479
4. Cap nut
SS316/A276 or A479
5. Bonnet
SS316/A276 or A479 Alloy 400/B164
C276/B574
6. Gland
SS316/A276 or A479 Alloy 400/B164
C276/B574
7. Packing (2)
PTFE/D1710, optional PEEK & Grafoil
8. Packing supports (2)
SS316/A276 or A479 Alloy 400/B164
C276/B574
9. Stem
Hard Chrome-plated
SS316/A276 or A479 Alloy 400/B164
C276/B574
10. Standard globe disc, optional
globe ball & regulating disc.
TYPE630/A564
Alloy 400/B164
C276/B574
11. Panel nut
SS316/A276 or A479
12. Union nut
SS316/A276 or A479
13. Body
SS316/A276 or A479 Alloy 400/B164
C276/B574
Wetted parts and lubricants are listed in
blue
.
Lubrication :
• Nickel anti-seize lubricant (hydrocarbon carrier).
• Ball disc: hydrocarbon-based.
■
Handle-
Standard SS316 bar handle, optional aluminum bar handle.
■
External Packing Bolt-
allows packing adjustment without the valve disassembly.
■
Roll threaded and hard chrome plated stem-
is for long valve life.
■
Panel Mounting Nut-
is standard and permits valve to panel or actuator.
■
Union Nut-
prevents accidental disassembly of the valve in service.
■
Stem Packing below the threads-
prevents media contamination and thread lubricant washout.
■
Stem Back Seating-
in fully open position.
■
Non-Rotating Stem Disc at Closure-
is for maximum metal seat life and positive seal.
Globe Disc
Ball Disc
Regul ting Disc
Globe Disc
Ball Disc
Regulating Disc
1
4
3
7
8
11
12
6
5
9
13
2