Product Category
VEX110 series High Pressure Needle Valves
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- Up to 10000psig (689 bar)
- Up to 204? (399?) with FKM o-ring seal
- Up to 250? (482?) with Kalrez o-ring
- Premium four(4) sealing on the stem for high pressure
- The Stem seal below the actuating threads prevent
- system fluid contamination ss316
- Pipe thread 1/4 -1/2 inch
Inline Patterns Angle Patterns
Features
Premium four (4) sealing mechanisms for severe service.
The unique pressure-reacting self-adjustable sealing design eliminates the need for packing adjustment during service.
The sealing cup swells up in system pressure for full sealing contact in the bonnet.
The backseat stem design prevents stem blowout.
High-precision machining provides low valve operating torque.
Stem packing below the threads prevents thread lubricant washout and media contamination.
Material of Construction
| # | Component | Material /ASTM |
| 1 | Body | S316/ A479, A276 |
| 2 | Bonnet | S316/ A479, A276 |
| 3 | Stem | S316/ A479, A276 |
| 4 | Sealing Cup | Standard Polyetheretherketone- PEEK |
| 5 | Packing | |
| 6 | Upper & Lower O-ring seal |
Kalrez or Viton |
| 7 | Handle guide |
Poly Oxy Methylene- Copolymer- POM C |
| 8 | Handle pin | S316/ A479, A276
S316 S316 S316 |
| 9 | Set screw | |
| 10 | Bar Handle | |
| 11 | Bonnet Locking Pin |
Temperature and Pressure Ratings
Ratings are based on valves with PFA chevron packing.
| Valve Material |
Optional Valve O-ring Designator |
Standard Sealing Cup Material |
Temp. Rating °C (°F) |
Pressure Rating @ 38 °C (100°F) |
| S316 | KZ* | PEEK | - 30 ~ 250 S316 (-22 ~ 482) |
689 bar (10 000 psi) |
| VT* | -30~204 (-22 ~399) |
*KZ: Kalrez (Perfluoroelastomer), TM Dupont
*VT: Viton (Vinylidene fluoride-based fluoroelastomer), TM Dupont
Factory Test
Every valve is tested with nitrogen @ 68 bar (1000psig) at the seat to a maximum allowable leak rate of 0.1 scc/min. The packing is tested for no detectable leakage...
Lubrication: Molybdenum disulfide lubricant
Note:
1. Wetted components are marked in blue.
2. The sealing system is marked in Red.
Table of Dimensions
| Basic Ordering Number | End Connections | Orifice mm (in.) |
Cv | Dimensions, mm (inch) | |||||||
| Inlet | Outlet | L | L1 | L2 | L3 | H | P | ||||
| In-line pattern VEX 110BMF |
MF-4N-*-S | 1/4” Male NPT | 1/4” Female NPT | 4.76 (0.19) |
0.75 | 88.9 (3.5) |
44.45 (1.75) |
44.45 (1.75) |
- | 90.0 (3.54) |
71.5 (2.81) |
| 110BMF- 8N-*-S |
1/2” Male NPT | 1/2” Female NPT | 88.9 (3.5) |
44.45 (1.75) |
44.45 (1.75) |
- | 90.0 (3.54) |
71.5 (2.81) |
|||
| Angle pattern VEX 110B |
MF-4N-A-*-S | 1/4” Male NPT | 1/4” Female NPT | 88.9 (3.5) |
44.45 (1.75) |
44.45 (1.75) |
- | 90.0 (3.54) |
71.5 (2.81) |
||
| 110BMF- 8N-A-*-S |
1/2” Male NPT | 1/2” Female NPT | 50.8 (2.0) |
15.87 (0.62) |
34.93 (1.38) |
36.6 (1.44) |
90.0 (3.54) |
71.5 (2.81) |
|||
