The 741V Series needle valve design applies low viscosity assembly fluids with accurate, extremely close repeat deposit control.

During operation, controlled pulsed air acts on the piston to withdraw the needle a preset distance from the needle seat to provide exact, repeatable fluid flow. The stainless steel needle seats in the tip adapter, virtually eliminating dead fluid volume between shots.

The Nordson EFD needle valve features adjustable fluid flow control.

With the new QR technology, the xQR41V Series needle valve features a (QR) Quick Release clasp, modular design, and 60% smaller form factor, with being designed for precise, consistent fluid control, The QR clasp makes it easy to remove the fluid body from the valve in seconds – no tools required. Because the valve can stay mounted while the fluid body is cleaned, changing out fluid takes less than 2 minutes, which significantly reduces downtime while increasing productivity.

A 60% smaller form factor allows the xQR41V to dispense in tighter spaces and at more complex angles. The ability to mount more valves per fixture plate increases production capacity.

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741V Series Valves
Size 114.6 mm×26.9 mm (4.51″×1.06″)
Weight 741V-ss:317.5 grams (11.2 oz)
741V:158.8 grams (5.6 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 outlet Male luer lock
Mounting 1/4-28 UNF tapped hole
Cycle rate Exceeds 400/Minute
Air cylinder body 741V-SS: Type 303 stainless steel
741V: Hard-coated aluminum
Fluid body 741V-SS: Type 303 stainless steel
741V: Hard-coated aluminum
Piston Type 303 stainless steel
Needle Type 303 stainless steel
Tip adapter/needle seat Type 303 stainless steel
SafetyLok™ collar Nylon
Needle packings Telon®
Note All stainless steel parts are passivated For tamper-resist model specify part#741V-TR or 741V-SS-TR
xQR41V Series Valve
Item Specifications
Size 64 mm length×23.7 mm diameter (2.5 ×0.93″)
Weight Valve only:115 g (4.1 oz)
With BackPack actuator:170 g (6.0 oz)
With Mounting block: 140 g (4.9 oz)
Actuating air pressure requited 4.8-6.2 var (70-90 psi)
Maximum fluid pressure 7.0 bar (100 psi)
Fluid inlet M5
Fluid outlet Luer taper with retaining nut
Mounting M4 (BackPack valve actuator or mounting block
Cycle rate Ezceeds 400 per minute
Air cylinder body 303 stainless steel
Fluid body PEEK*
Piston 303 stainless steel
Needle 303 stainless steel
Tip retaining nut Hard-coated aluminum
Maximum operating temperature 80°C (176°F)