741V-SS-BP ADJUSTABLE NEEDLE VALVE w. BACKPACK
741V-SS-BP ADJUSTABLE NEEDLE VALVE w. BACKPACK
Needle valve system for precise, consistent fluid control.
The 741V Series Needle Valve applies low-viscosity fluids like silicone oils, solvents and UV-cure adhesives in accurate, repeatable amounts. Because the stainless steel needle seats in the tip adapter, there is virtually no dead fluid volume between shots.
The BackPack Valve Actuator mounted on the actuating air cylinder maintains constant pressure at the actuating air inlet, for faster response time without the risk of process variations due to a fluctuating plant air supply or different air line lengths. In addition, the BackPack utilizes advanced miniature solenoid technology that makes it possible to achieve valve actuation speeds as short as 5-6 milliseconds, and cycle rates that exceed 60 – 80 Hz.
Features
• Adjustable fluid flow control
• Unaffected by entrapped air in fluid
• Zero dead fluid volume
• Fluid input up to 300 psi (20.7 bar)
• Positive shutoff
• Cycle rate exceeds 800/minute
• Low-maintenance design
|
1K/2K
|
Single Component |
|---|---|
|
Type
|
Needle |
|
Series
|
741 |
|
Wetted parts
|
Stainles Steel 303 |
Electrical input: 24 vdc, 4 Watts
Air input: 70-90 psi (4.8-6.2 bar)
Min. actuation time: 5 milliseconds
Max. actuation time: Continuous ON
Cycling frequency: 60-80 hertz
Weight: 370.1 grams (13.05 oz)
Actuating air pressure required: 70 to 90 psi (4.8 to 6.2 bar)
Maximum input fluid pressure: 300 psi (20.7 bar)
Fluid inlet thread: 1/8 NPT female
Fluid outlet: Male luer lock
Mounting: 1/4-28 UNF tapped hole
Cycle rate: Exceeds 400/minute
Air cylinder body: Type 303 stainless steel
Fluid body: Type 303 stainless steel
Piston: Type 303 stainless steel
Needle: Type 303 stainless steel
Tip adapter/needle seat: Type 303 stainless steel
SafetyLok™ collar: Nylon
Needle packings: Teflon