Flow Orifices and Flow Restrictors Specifications

Construction


	Connection
	Your choices are...
	NPT Female Courtesy of NIBCO INC.		One or more female NPT thread ports.
	NPT Male Courtesy of NIBCO INC.		One or more male NPT thread ports.
	BSP Male		One or more male BSP thread ports; includes both tapered (BSPT) and straight (BSPP) thread styles.
	BSP Female		One or more female BSP thread ports; includes both tapered (BSPT) and straight (BSPP) thread styles.
	English Straight Thread Male		One or more male straight threads, such as UNC, UNF or other English thread series.
	English Straight Thread Female		One or more female straight threads, such as UNC, UNF or other English thread series.
	Metric Thread Male		One or more male straight threads; includes pipe and straight threads.
	Metric Thread Female		One or more female straight threads; includes pipe and straight threads.
	Plain End		Straight pipe end; often used to insert into the bell end of the connecting pipe.
	Bell / Socket		End length of increased diameter into which a pipe end may be fitted.
	Flare		Flares are typically designed to mate with a connection nut or ferrule with complementary geometry.
	Face Seal		Face seals typically incorporate o-rings that mate against the face of the opposite connector to form a seal. Depending on the standard, the o-ring may be on the nose of the male threaded connector, or behind the male thread on the face of the backing nut.
	Flange Courtesy of NIBCO INC.		Circular or square flange is used to connect fitting, typically via bolting or welding.
	Compression Fitting		Connects to mating pipe with a compression fitting, typically involving a compression nut and ferrule.
	Pipe Clamp End		Fitting end designed to be attached to a run on pipe or other fitting with a pipe clamp.
	Push-to-Connect		Fitting end designed to accept the tubing by pushing it into the end; typically disconnects via some type of collar retraction.
	Barb / Rib Courtesy of NIBCO INC.		Fitting end has barbs or ridges. Typically practical to connect only non-rigid pipe or hose, or sometimes for use with a clamped end.
	Groove		Pipe fitting end has a groove, typically for the installation of a coupling feature such as an o-ring or elastomeric seal.
	Weld / Braze		For rigid metallic connections, tubing or pipe mates with fitting end and is welded or brazed to secure.
	Other		Any unlisted fitting connection.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	Media Type
	Your choices are...
	Pneumatic Air		The orifice is for pneumatic air service.
	Hydraulic Fluids		The orifice is for hydraulic fluids service.
	Ink		The orifice is for ink service.
	Chemical		The orifice is for general chemical service.
	Other Gas		The orifice is for other gas service.
	Other		Other unlisted media type.
	Search Logic:		Products with the selected attribute will be returned as matches. Leaving or selecting "No Preference" will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Material


	Material
	Your choices are...
	Aluminum		A bluish silver-white malleable ductile light trivalent metallic element that has good electrical and thermal conductivity, high reflectivity, and resistance to oxidation.
	Brass		Brass is an alloy of copper and zinc often with additional elements such as lead or tin; good strength, excellent high temperature ductility and reasonable cold ductility, good conductivity, excellent corrosion resistance, good bearing properties and low magnetic permeability characterize it.
	Bronze		Bronze is an alloy of copper with other elements such as aluminum, silicon or tin (aluminum bronze, silicon bronze, tin bronze, etc.)
	Copper		A common reddish metallic element that is ductile and malleable and is one of the best conductors of heat and electricity, copper tube and fittings are frequently used in plumbing applications.
	Hastelloy®		The attributes of Hastelloy® alloys include high resistance to uniform attack and localized corrosion resistance. It also provides stress corrosion cracking resistance, and ease of welding and fabrication. Hastelloy is a registered trademark of Haynes International, Inc.
	Monel®		Monel® alloy has high strength and resistance to a range of corrosive media including seawater, hydrofluoric and sulfuric acids, and alkalis. Monel is a registered trademark of Special Metals Corporation.
	Nickel		Will vary per application, as nickel is a constituent of many alloys.
	Sapphire		Sapphire is a precious gemstone (a type of corundum) that ranges in color from blue to pink to yellow to green to white to purple (mauve sapphire) to pink-orange (padparadscha sapphire). Sapphire has a hardness of 9 and a specific gravity of 3.9 - 4.1. Sapphires are often heat treated to improve their color.
	Steel - Carbon and Alloy		Generic classification for general purpose carbon steel, mild steel or steel alloys containing additions of chrome, nickel, molybdenum, vanadium or other elements to alter hardenability characteristics, toughness, hardness, corrosion resistance, and/or strength. "Black pipe" is typically made of carbon steel.
	Steel - Stainless		Stainless steel is chemical and corrosion resistant and can have relatively high-pressure ratings; this selection includes all grades of stainless steel.
	Thermoplastic		Includes all grades of thermoplastic materials, such as ABS, nylon, fluoropolymers, etc.
	Other		Other unlisted, specialized, or proprietary material.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

Applications and Features


	Applications and Industry
	Your choices are...
	Biological		The orifice is designed for use in biological instrumentation applications.
	Burners		The orifice is designed for use in a burner. Most atmospheric burners have a gas orifice that is accurately fixed in the burner throat providing air inspiration. The hole in the orifice is necessarily small to provide the correct gas flow and to provide sufficient velocity to ensure there is suction available for the correct air inspiration.
	EDM Wire Guides		The orifice is designed for use in EDM wire guides.
	Flow Measurement		The orifice is used for flow measurement applications including flow meters.
	Ink Jet Printing		The orifice is used in ink jet printing applications. Current ink jet print heads utilize 20-micron diameter orifices and printer manufacturers are in the process of reducing that to 10 micron.
	Medical		The orifice is for use in medical instrumentation applications.
	Nozzles		The orifice is designed for use in a nozzle for flow control.
	Particle Counters		Orifices are used in particle counting as an inactive flow control method. Inactive methods utilize a fixed restriction and rely on a constant pressure, temperature and viscosity
	Pneumatic Control		The orifice is designed for use in pneumatic control applications.
	Snubber		An orifice with some provision for pressure shock absorption or dampening. These are used in applications such as connection gauges or other instrumentation to pressure or process lines.
	Water Jet		The orifice is designed for use in water jet applications. The orifice effectively converts energy again from pressure to velocity to produce an outgoing stream of water traveling at over twice the speed of sound.
	Other		Other unlisted or specialized industry or application.
	Search Logic:		All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.

	Filters / Screens?		In-line filters or screens reduce particle flow through the orifice.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Multi-Orifice?		The restrictor has multiple orifices for increased restriction and control.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	Bi-directional Flow?		The orifice allows flow in both directions.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	High Purity?		The orifice is constructed to ensure high purity in sensitive applications such as semiconductor manufacturing.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	NIST Traceable?		The orifice is traceable to standards set by the National Institute of Standards and Technology (NIST). NIST is an organization in the United States that sets measurement standards.
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

	ASME Certified?		The orifice is manufactured to specifications set by the American Society of Mechanical Engineers (ASME).
	Search Logic:		"Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.

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