Flow Control Valves — HyPerformance™

HNV12-20 — HyPerformance™ Needle Valve
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NV12-20 Valve

SYMBOL:

NV12-20 Valve symbol

 

DESCRIPTION
A screw-in, cartridge-style, variable orifice, hydraulic flow restrictor valve for use in high pressure
applications.

OPERATION
The HNV12-20 increases the size of its orifice from fully closed to fully open with counterclockwise
adjustment rotation.

FEATURES
• Rated for high pressure operation.
• Compact size.
• Can be used with HyPerformance™ ductile iron body or standard ductile iron body.
• Adjustments cannot be backed out of the valve.
• Desired settings may be locked down.
• Hardened parts for long life.
• Variety of adjustment options available.
• Positive shut-off.
• Linear adjustment.

RATINGS
Pressure Rating: 350 bar (5075 psi)
Proof Pressure: 689 bar (10000 psi)
Burst Pressure: 1379 bar (20000 psi)
Flow: 113.6 lpm (30 gpm) nominal at 7 bar (100 psi) at full open 4.5 turns
Internal Leakage: 0.15 cc/minute (3 drops/minute) max. at shut-off
Adjustment Torque Required: 0.3-0.6 Nm (3-5 lb.-in.) at 345 bar (5000 psi)
Temperature: -54 to 107 °C (-65 to 225 °F) with urethane seals
Filtration: See page 9.010.1
Fluids: Mineral-based or synthetics with lubricating properties at viscosities of
   7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1
Installation: No restrictions; See page 9.020.1
Cavity: HVC12-2 or VC12-2; See page 9.112.1_2w
Cavity Tool: CT12-2xx for standard ductile iron body; HCT12-2xx for H-series
   ductile iron body; See page 8.600.1
Seal Kit: SK12-2U-0; See page 8.650.1

 

 


PERFORMANCE:
NV12-20 Flow Pressure

 


DIMENSIONS:

NV12-20 Dimensions

 


MATERIALS:

Cartridge: Weight (with Adjustment Option A: 0.32 kg (0.50 lb) Steel with hardened work surfaces. Zinc-plated exposed surfaces. Urethane seals standard. Anodized aluminum knobs.

Standard Ported Body: H-series ductile iron, or standard ductile iron, rated to 345 bar (5000 psi); anodized high-strength aluminum alloy, rated to 207 bar (3000 psi) also available; available; dimensions may differ. See page 8.012.1_2w.

 

ORDERING CHART:

NV12-20 Ordering Chart

Selection guide - similar valves.
PDF file of this page. Request a quote.