Needle Monoflange Valves

Products
monoflange-valve-500x500

Product Description

Needle valves, sometimes referred to as plunger valves, are regulating valves and enable engineers to finely control and regulate water flow and pressure. The precision is achieved through the fine movement of the shaft, which enables the gearbox to move the piston tube in sliding motion towards the opening or closing position, depending on the requirements from the control system.

Types of needle valves.

  • Instrumentation Stainless Steel Needle Valve

  • High-Pressure Stainless Steel Needle Valve

  • Npt Thread Stainless Steel Needle Valve

Typical Applications

Flow control
Pressure regulation
Pump start
Turbine by-pass
Discharge
Reservoir inlets
Air regulation

Weldability

Good 

Related material specifications

STANDARD OUTLET

1/2″ NPT (F)

STANDARD VENT

1/4″ NPT (F)

OTHER CONNECTIONS

THREADED, TUBE END, SOCKET WELD

FLANGE PRESSURE RATING

150#, 300#, 600#, 900#, 1500#, 2500#

PACKING & SEAT MATERIAL

PTFE, GRAPHOIL, PEEK

BODY TYPE

BAR STOCK, FORGED

HANDLE

T HANDLE

MATERIAL

SS 316, SS 304, SS 316 TI, COPPER, BRASS, DUPLEX, CS, INCONEL, SUPER DUPLEX, HASTELLOY, MONEL, ALLOY 20, SMO 254, 904L, TITANIUM & ALL OTHER ALLOYS

Availability

304, 304L, 316, 316L, 317L, 321, 347, 17-4PH, 22% Duplex Stainless Steel, 25% Duplex, 254SMO, 904L

Key features

  • Symmetric flow path with annular flow cross-section in any open position

  • Internal body shape is optimised to give a low head loss coefficient in fully open position

  • All ductile iron parts coated with min. 250 µm fusion bonded epoxy

  • Shaft sealing with double O-rings

  • Main seal in the no-flow zone at the valve outlet

  • 4-6 guide rails ensure very low vibration

  • Gaskets in thermoplastic PUR for high resistance to abrasion

Cut to size capability

We can cut from one off blanks to the largest production run for immediate or just in time deliveries.

Corrosion Resistance

Very Good 

Machinability

Good / fair.

Chemical Composition (weight %)

Grade C Mn Si S Cu Fe Ni
200 0.15 max 0.35 max 0.35 max 0.01 max 0.25 max 0.40 max 99.0 min

All information in our datasheet is based on approximate testing and is stated to the best of our knowledge and belief. It is presented apart from contractual obligations and does not constitute any guarantee of properties or of processing or application possibilities in individual cases.