Autoclave Engineers manufactures a variety of needle valves, including low and medium pressure types with a non-rotating rising stem design, and working pressures up to 2000 psi. These products come in tube size ranges of 1/4" up to 1", and feature 316s stainless steel construction with operating temperatures of 0 F - 650 F.

Hoke is a manufacturer of needle valves offered with forged body styles of 316 stainless steel, brass or monel, or bar stock made of brass, carbon steel or 316 SS. They come in integral, screw or union bonnet configurations. Some designs are offered for severe service or sour gas service.

Specialty Mfg. Co is a manufacturer of a wide selection of valve products, including brass and plastic needle valves in a variety of sizes. The NV series are compact and offer a 3 turn adjustment in the needle. A 6.5 turn adjustment is also offered.

Holyoke Fittings manufactures various needle valves, including models for hose, pipe and tube applications. These products are ideal for use in automotive, air conditioning, industrial, plumbing and refrigeration applications.

Marquest Scientific is a manufacturer of fluid handling products and offers over a dozen needle valve models, as well as the "L" series, and a variety of accessories and replacement parts.

United manufacturers the 130 model needle test valve featuring a pressure tested 1/4” NPT x 1/4” hose and lead free construction.

Georg Fischer Piping Systems offers needle valves for a wide range of applications. Models include the 1/2" type 522 and the SYGEF PVDF type 522 available in glove and angle configurations.

Dragon is a manufacturer of a variety of products, including general purpose, barstock, soft seat plug style, rodable soft seat plug style with Teflon packed bonnets, and various other needle valves (including custom designed products).

Generant manufactures brass and stainless steel needle valves, including the FNV series (forged) available in a wide range of configurations up to 1/2”. The Series 3000 screwed bonnet design has a bar stock body and is designed for positive shut off and coarse metering.

Innovative Pressure Technologies is a manufacturer specializing in precision products for fluid control devices, including pipe needle valves with psi ratings up to 15000, non-rotating stems, integral through-holes for bracket mounting and a choice of nine body styles for a wide range of applications.

Kerotest M&M manufactures needle and gauge valves in various configurations for a broad range of applications. Products include hard seat stainless steel, soft seat standard port, soft seat full port, bleed terminal and integral bonnets designs.

Maxpro manufactures a variety of medium pressure valves and fittings, as well as high pressure needle valves and tubing for pressures up to 60,000 psi for many applications.

Industrial Specialties offers four series' of needle valves. The SCO and MCO Series are fractional types, the former with a screwdriver adjustment and latter with a manual adjustment. The GSCO and GMCO Series are metric types, also with differing adjustment designs.

Parker's line of needle valves includes the MV-13 Manual PFA, designed for high purity or aggressive chemical and gas applications. This product utilizes a molded high purity PFA body and stem as the only wetted components. The stem sealing area is precision machined for smooth, consistent flow. A PTFE ferrule assures a leak tight seal between stem and body.

Swagelok designs and manufactures a wide array of needle valves for general utility service applications. Other models include integral bonnet, PFA, non-rotating stem and high pressure designs.