PARKER HNVS8FF HNVS8FF-GR 6000 PSI Needle Valve, Female Inlet, Stainless Steel

Item: AD7JXP
Model: HNVS8FF
Cross Ref: 4EUK1 / HNVS8FF-GR
30 In Stock.

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$340.87
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$306.78 /unit (ex. VAT)
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Specifications

Item Needle Valve
Body Material Stainless Steel
Bonnet Style Integral
Connection FNPT
Connection Size - Side 1 1/2"
Connection Size - Side 2 1/2"
Connection Type FNPT x FNPT
Fitting Style Straight
Flow Coefficient (cv) 0.35
For Media Chemicals, Inert Gas, Oil
Handle Material Stainless Steel
Inlet Connection Size 1/2"
Inlet Connection Type NPT
Inlet Type Female
Length 2 1/2"
Max. Flow Rate 0.35 GPM
Max. Height 3 1/8"
Max. Operating Temp. 538°C
Max. Pressure 6000 psi
Max. Pressure (cwp) 6000 psi
Media Temp. Range -65°F to +450°F
Media Temperature Range -65°F to +450°F
Min. Operating Temp. -54°C
Outlet Connection 0.5"
Outlet Port Female
Overall Length 2.5"
Pipe Size 1/2"
Seal Material PTFE
Seat Material Metal
Stem Material Stainless Steel
Stem Type Non Rotating
Temp. Rating -65°F to +450°F
Valve Body Style Inline
Valve Series H Series
Standards C CERTIFIED

Product Details

Parker needle valves use a slender needle-shaped plunger that fits in a conical seat to restrict or allow flow. They control the flow of liquids or gases in metering applications. Parker HNVS8FF needle valve is intended for isolation and regulation in low-flow applications.

Shipping Information

Height (cm) 3.81
Length (cm) 6.35
Width (cm) 7.94
HS Code 8481803060
Country Of Origin GB
Weight (kg) 0.4275

Working Mechanism

  • Adjustment on this needle valve should be carried out at zero pressure.
  • Distance between the plunger and the valve seat is controlled by a handwheel.
  • With one turn of the handwheel, the plunger lifts and opens the valve, allowing fluid to pass through.

Features

  • Parker HNVS8FF bar stock needle valve featuring heavy-duty stainless steel construction for use with fluids having pressure ratings up to 6000 psig
  • Equipped with a self-centring, non-rotating spindle tip which provides bubble-tight shutoff and a backstop spindle which prevents blowouts
  • Designed with a low-torque T-bar handle for enhanced regulation and control
  • Panel and base mounting options for easy installation and dust cap to prevent ingress of contaminants
  • Comes with PTFE gland packing for extreme temperature & chemical tolerance, as well as to provide secure sealing
  • Ideal for gaseous applications when used with soft-tipped seating
  • Colour coded for easy identification
  • Integrated with bonnet locking pins to ensure positive lock & vibration-free performance

Standards and Approvals

  • API 598

Certifications

certificate

Frequently Asked Questions

What are the precautions one must take while operating a needle valve?

  • Do not adjust the valve while under pressure.
  • Never use any mechanical aids such as wrenches or extensions to operate handles.
  • Never scratch the markings on the valve body.

Why are needle valves bi-directional?

The bi-directional design enables regulated airflow in one direction and free airflow in the other.

What is the difference between a motor and a gear motor?

Gear motors can alter the speed or torque of a motor based on mechanical gears.

Does Dayton 1LPN8 gear motor come pre-lubricated?

The unit is greased to provide an oil film that prevents the rotating element and races from harsh metal-to-metal contact.

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