VAN BI DK-LOK VH86
DK-LOK VH86 PURPOSE BALL VALVES
Thông tin sản phẩm: DK-LOK VH86
Features
- High flow in a compact design.
- High pressure capacity designed for blow-out proof with internally loaded ball stem.
- Micro-finished ball provides a positive seal.
- 90 degree actuation for 2-way and 180 degree actuation for 3-way ball valves.
- Panel mounting as standard.
- Chevron stem seal, adjustable with the handle disassembled.
- Handle indicates flow direction.
- Low operating torques and positive handle stops.
- Optional pneumatic actuation.
Material of Construction
|
Components
|
Valve Body Material Stainless Steel Grade/ASTM Specification
|
|
1. Handle
|
Nylon with brass insert
|
|
2. Set Screw
|
Stainless steel
|
|
3. Panel Nut
|
SS316/A276
|
|
4. Packing bolt*
|
|
5. Upper / Lower Gland
|
|
6. Stem Chevron Packing
|
PTFE/D1710 type 1, Grade 1, Class B
|
|
7. Stem
|
SS316/A276
|
|
8. Body
|
SS316/A276 Type F316
|
|
9. Ball
|
SS316/A276
|
|
10. Seat (2)
|
Standard PCTFE (Kel-F), optional PTFE,
PEEK
|
|
11. Retainer (2)
|
SS316/A276
|
|
12. Retainer Seal (2)
|
PTFE/D1710 type 1, Grade 1, Class B
|
|
13. End Connector Seal (2)
|
|
14. End Connector (2)
|
SS316/A276
|
Operation and Packing Adjustment
- VH86 valves are designed to control fluid in full open and closed position, using VH86 valves to throttle the flow may reduce the valve life.
- Stem packing can be adjustable with the handle disassembled. Tighten packing bolt clockwise to tighten the stem packing.
- Valves that have not been actuated for a period of time may have a higher initial actuation torque.
- If the valve system needs to be tested at higher pressure than the valve maximum pressure, the valve must be in open position during the test so as not to damage the valve seat.
- Optional Sour Gas Service applicable.