Mô tả sản phẩm

DK-LOK V46 SERIES GAUGE ROOT VALVES

Thông tin sản phẩm: DK-LOK V46

Features
Non-rotating stem tip at closure for long-life and leak-tight shutoff.
● Chevron PTFE packing design provides far improved sealing integrity.
● Packing below stem threads is to isolate threads from system fluid and
lubricant washout.
● Packing bolt permits stem packing adjustment.
● Standard Lock plate ensures the valve fastened to the body even
excessive operating torque is applied.
● One piece body construction provides strength.
● Burr-free internal surface.

Materials of Construction

Component	Valve Body Materials


	Grade/ASTM specification
1. Handle	Stainless steel	Aluminiun black anodized
2. Set screw	SS316/A276 or A479	SS316/A276 or A479
3. Packing bolt		C.Steel/A108
4. Lock nut
5. Upper gland		SS316/A276 or A479
6. Packing	Standard chevron PTFE packing, optional Grafoil
7. Lower gland	SS316/A276 or A479	SS316/A276 or A479
8. Bonnet		C.Steel/A108
9. Stem		SS316/A276 or A479
10. Non-rotating stem tip	SS630/A564
11. Lock plate bolt	Stainless steel
12. Spring washer	Stainless steel
13. Lock plate	Stainless steel	Carbon steel
14. Body	SS316/A276 or A479	C.Steel/A108 or A105, Yellow zinc galvanized
Flange seals (not shown)	PTFE/D1710, optional Grafoil and florocarbon FKM O-ring
Flange bolts (not shown)	Stainless steel/A193	Carbon steel/A193
Lubricant	Fluorinated base with PTFE and tungsten disulfide
	Hydrocarbon based

Pressure-Temperature Ratings

Body

Material

Packing

material

Temperature

Rating

Pressure Rating

@ 37 OC (100 OF)

Pressure Rating

@ Max. Temp.

Stainless steel

PTFE

- 54 to 232 OC

(-65 to 450 OF)

413 bar

(6000 psig)

285 bar@232 OC

4130 psig@450 OF

Grafoil

-54 to 648 OC (1)

(-65 to 1200 OF)

118 bar@648 OC

1715 psig @ 1200 OF

Carbon steel

PTFE

- 29 to 176 OC

(-20 to 350 OF)

413 bar

(6000 psig)

360 bar @ 176 OC

(5230 psig @ 350 OF)

Grafoil

- 29 to 176 OC

(-20 to 350 OF)

Design

D-Pro Manifolds and Gauge root valves are designed to ASME B16.34 Class 2500 for pressure-temperature ratings.
Pressure boundary wetted parts are selected to Chapter III, 123 Materials of ASME B31.1.
Valve ratings are based on ASME process piping code B31.3.
To determine pressure rating at 37 OC (100 OF) in accordance with Power piping code B31.1, multiply by 0.94 for stainless steel.