High Pressure Needle Valves
10N Series
10,000 psi (690 bar)
Features
¤ Non-rotating stem and bar stock body design.
¤ Easy to assemble and replace packing.
¤ Metal-to-metal seating achives ideal shutoff, longer stem/seat service lifetime for abrasive flow,
¤ excellent corrosion resistance and greater durability for repeated on/off cycles.
¤ PTFE is the standard packing material, RPTFE glass, Graphite and Extend stuffing box valve with
¤ Graphite also available.
¤ The material of packing glａnd and upper stem have been selected to achieve reduced handle torque
¤ ａnd extended thread cycle life.
¤ The material of valve body is 316 SS, the material of lower stem is 17-4PH SS.
¤ Options for Vee or Regulating stem tips.
¤ The location of packing is under the thread of valve stem.
¤ The locking device of packing glａnd is reliable.
¤ Five flow patterns are available.
Technical Data
¤ The valueof Cvshown arefor 2-waystraight valvepattern.
The valve of Cv for 2-way angle patern will be increase about 50% (Base on water).
¤ Extreme Temperatures
PTFE is the standard packing material for UNIONC Needle Valve; RPTEF glass;
Graphite (used by Tube connectors only) and Extending stuffing box valve
with Graphite (used by Tube connectors only) also available.
Normal Needle Valve with PTFE packing can be operated from -100°F (-73°C) to 450°F (232°C).
Normal Needle Valve with RPTFE glass packing can be operated from -100°F (-73°C) to 600°F (316°C).
Normal Needle Valve with Graphite packing can be operated from 0°F (-17.8°C) to 800°F (427°C).
Extending stuffing box Valve with of Graphite packing can be operated from 100°F (-73°C) to 1200°F (649°C).
Notes: 2 G1 is the dimension of bracket mounting hole.
3. panel mounting drill size: 0.25" all valves.
4. H is the dimension of stem in closed position.
5. All dimensions are for reference only and are subject to change. For dimensions not shown above,
please contact the authorized representative or UNIONC Group.
15N Series
15,000 psi (1034 bar)
Features
¤ Non-rotating stem and bar stock body design.
¤ Easy to assemble and replace packing.
¤ Metal-to-metal seating achives ideal shutoff, longer stem/seat service lifetime for abrasive flow,
¤ excellent corrosion resistance and greater durability for repeated on/off cycles.
¤ PTFE is the standard packing material, RPTFE glass and Graphite also available.
¤ The material of packing glａnd and upper stem have been selected to achieve reduced handle
¤ torque and extended thread cycle life.
¤ The material of valve body is 316 SS, the material of lower stem is 17-4PH SS.
¤ Options for Vee or Regulating stem tips.
¤ The location of packing is under the thread of valve stem.
¤ The locking device of packing glａnd is reliable.
¤ Five flow patterns are available.
Notes:
¤ The value of Cv shown are for 2-way straight valve pattern.
The valve of Cv for 2-way angle patern will be increase about 50% (Base on water).
¤ Extreme Temperatures
PTFE is the standard packing material for UNIONC Needle Valve; RPTEF glass and
Graphite (used by Tube connectors only) also available.
Normal Needle Valve with PTFE packing can be operated from -100°F (-73°C) to 450°F (232°C).
Normal Needle Valve with RPTFE glass packing can be operated from -100°F (-73°C) to 600°F (316°C).
Normal Needle Valve with Graphite packing can be operated from 0°F (-17.8°C) to 800°F (427°C).
Notes:
1. G is the drill dimension of packing glａnd mounting hole.
2. G1 is the dimension of bracket mounting hole.
3. panel mounting drill size: 0.25 " all valves.
4. H is the dimension of stem in closed position.
5. All dimensions are for reference only and are subject to change. For dimensions not shown above,
please contact the authorized representative or UNIONC Group
20N Series
20,000 psi (1379 bar)
Features
¤ T ubing sizes available for 1/4", 3/8", 9/16 ", 3/4 ", 1".
¤ Non-rotating stem and bar stock body design.
¤ Easy to assemble and replace packing.
¤ Metal-to-metal seating achieves ideal shutoff, longer stem/seat service lifetime for abrasive
¤ flow, excellent corrosion resistance and greater durability for repeated on/off cycles.
¤ PTFE is the standard packing material, RPTFE glass, Graphite and Extend stuffing box valve
¤ with Graphite also available.
¤ Extend stuffing box valve with of Graphite can be operated to 1200°F (649°C).
¤ The material of packing glａnd and upper stem have been selected to achieve reduced handle
¤ torque and extended thread cycle life.
¤ The material of valve body is 316 SS, the material of lower stem is 17-4PH SS.
¤ Options for Vee or Regulating stem tips.
¤ The location of packing is under the thread of valve stem.
¤ The locking device of packing glａnd is reliable.
¤ Five flow patterns are available.
Notes:
¤ The value of Cv shown are for 2-way straight valve pattern.
The value of Cv for 2-way angle pattern will be increase about 50% (Base on water).
¤ Extreme Temperatures
PTFE is the standard packing material for UNIONC Needle Valve; RPTFE glass, Graphite
ａnd Extend stuffing box valve with graphite also available.
Normal Needle Valve with PTFE packing can be operated from -100°F (-73°C) to 450°F (232°C).
Normal Needle Valve with RPTFE glass packing can be operated from -100°F (-73°C) to 600°F (316°C).
Normal Needle Valve with Graphite packing can be operated from 0°F (-17.8°C) to 800°F (427°C).
Extending stuffing box Valve with of Graphite packing can be operated from 100°F (-73°C) to 1200°F (649°C).
Notes:
1. G is the drill dimension of packing glａnd mounting hole.
2. G1 is the dimension of bracket mounting hole.
3. Panel mounting drill size: 0.25" all valves.
4. H is the dimension of stem in closed position.
5. All dimensions are for reference only and are subject to change. For dimensions not shown above,
please contact the authorized representative or UNIONC G roup.
30N Series
30,000 psi (2068 bar)
Features
¤ Tubing sizes available for 1/4", 3/8", 9/16".
¤ Non-rotating stem and bar stock body design.
¤ Easy to assemble and replace packing.
¤ Metal-to-metal seating achieves ideal shutoff, longer stem/seat service lifetime for abrasive
¤ flow, excellent corrosion resistance and greater durability for repeated on/off cycles.
¤ PTFE is the standard packing material, RPTFE glass, Graphite and Extend stuffing box valve
¤ with of Graphite also available.
¤ Extend stuffing box valve with of Graphite can be operated to 1200°F (649°C).
¤ The material of packing glａnd and upper stem have been selected to achieve reduced handle
¤ torque and extended thread cycle life.
¤ The material of valve body is 316 SS, the material of lower stem is 17-4PH SS.
¤ Options for Vee or Regulating stem tips.
¤ The locking device of packing glａnd is reliable.
¤ Five flow patterns are available.
Notes:
¤ The value of Cv shown are for 2-way straight valve pattern.
The value of Cv for 2-way angle pattern will be increase about 50% (Base on water).
¤ Extreme Temperatures
PTFE is the standard packing material for UNIONC Needle valve; RPTFE glass, Graphite
ａnd Extend stuffing box valve with graphite also available.
Normal Needle Valve with PTFE packing can be operated from -100°F (-73°C) to 450°F (232°C).
Normal Needle Valve with RPTFE glass packing can be operated from -100°F (-73°C) to 600°F (316°C).
Normal Needle Valve with Graphite packing can be operated from 0°F (-17.8°C) to 800°F (427°C).
Extending stuffing box Valve with of Graphite packing can be operated from 100°F (-73°C) to 1200°F (649°C).
Notes:
1. G is the drill dimension of packing glａnd mounting hole.
2. G1 is the dimension of bracket mounting hole.
3. Panel mounting drill size: 0.25 " all valves.
4. H is the dimension of stem in closed position.
5. All dimensions are for reference only and are subject to change. For dimensions not shown above,
please contact the authorized representative or UNIONC Group.
60N Series
60,000 psi (4137 bar)
Features
¤ Tubing sizes available for 1/4", 3/8", 9/16".
¤ Non-rotating stem and bar stock body design.
¤ Easy to assemble and replace packing.
¤ Metal-to-metal seating achieves ideal shutoff, longer stem/seat service lifetime for abrasive
¤ flow, excellent corrosion resistance and greater durability for repeated on/off cycles.
¤ Nylon is the standard packing material, RPTFE glass, Graphite and Extending stuffing box
¤ valve with Graphite also available.
¤ Extend stuffing box valve with of Graphite can be operated to 1200°F (649°C).
¤ The material of packing glａnd and upper stem have been selected to achieve reduced handle
¤ torque and extended thread cycle life.
¤ The material of valve body is 316 SS, the material of lower stem is 17-4PH SS.
¤ Options for Vee or Regulating stem tips.
¤ The locking device of packing glａnd is reliable.
¤ Five flow patterns are available.
Notes:
¤ The value of Cv shown are for 2-way straight valve pattern.
The value of Cv for 2-way angle pattern will be increase about 50% (Base on water).
¤ Extreme Temperatures
Nylon is the standard packing material for UNIONC Needle Valve; RPTFE glass, Graphite
ａnd Extend stuffing box valve with graphite also available.
Normal Needle valve with Nylon packing can be operated from 40°F (4.4°C) to 230°F (110°C).
Normal Needle Valve with RPTFE glass packing can be operated from -100°F (-73°C) to 600°F (316°C).
Normal Needle Valve with Graphite packing can be operated from 0°F (-17.8°C) to 800°F (427°C).
Extending stuffing box Valve with of Graphite packing can be operated from 100°F (-73°C) to 1200°F (649°C).
Notes:
1. G is the drill dimension of packing glａnd mounting hole.
2. G1 is the dimension of bracket mounting hole.
3. Panel mounting drill size: 0.25" all valves.
4. H is the dimension of stem in closed position.
5. All dimensions are for reference only and are subject to change. For dimensions not shown above,
please contact the authorized representative or UNIONC G roup.
Note: "Part Number Description" is used for composition rules of UNIONC
product model, Not suitable for specific product part number
selection, not random combinations. If in doubt, please contact
UNIONC group or authorized agent.
Stem Types
Two types of stems are offered by UNIONC Engineers: Vee and Regulating. Both Vee and Regulating stems are interchangeable
on most valves and provide bubble-tight shut-off against liquids and gases.
