Manufacturers and suppliers of needle valves, gauge valves, instrument needle valves, needle isolators, needle gauge valves etc.

Needle Valves provide basic shut-off and flow control functions and can be supplied with a wide range of connections and options   including Panel-Mounting, Locking and Anti-Tamper.
Gauge Valves provide a versatile solution for Gauge positioning and calibration. Inlet connection can be screwed, butt weld or socket weld with option for lagging extension for up to 100mm of pipe insulation.
Stainless steel stems with laminated thread that provide more strength than conventional cut threads
Adjustable gland and mirrored finish stem surface to obtain a bigger lifetime of the packing
Designed, manufactured & inspected under ISO 9001:2000 quality system standards
Body, packing & shutt off 100% tested in factory
Complete traceability of bulk materials assured with an unerasable batch number engraved in the body
Requirements of NACE MR-01-75 standards (optional)
Operating maximu
     pressures up to 10.000 psi.
For Liquids:

where:
Q: flow in gallons per minute
De: specific gravity where
water = 1.00 @60ºF
P1: inlet pressure PSIA
P2: outlet pressure PSIA