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INSTRUMENTTION -Valves & Manifolds
 
VEX110 series High Pressure Needle Valves
 
    Inline Pattern Angle pattern  
  • 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 stem for high pressure
  • Stem seal below actuating threads prevent
  • system fluid contaminatio ss316
  • Pipe thread 1/4 -1/2 inch
 
Features
  • Premium four (4) sealing mechanism for severe service.
  • Unique pressure reacting self-adjustable sealing design eliminates the need of packing adjustment during service.
  • Sealing cup swells up in system pressure for full sealing contact in the bonnet.
  • 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 Temperature and Pressure Ratings
 

Ratings are based on valves with PFA chevron packing.
# Component Material /ASTM
1 Body S316/ A479, A276
2 Bonnet S316/ A479, A276
3 Stem S316/ A479, A276
4 Sealing Cup

Standard
Polyetheretherketon-
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
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 the 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. 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)
 
 
  ©2008 ELECTRA SOLUTIONS

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