ABZ is a manufacturer of many types of butterfly valves. The 2"-12" split body wafer valve is built to 150 PSI for the chemical/food industries. The 2"-12" split body with full lugs meets ANSI 125/150 pound drilling. There are a variety of other 2"-12", 150 PSI butterfly valves available for chemical, food, sanitary or general purpose use. ABZ offers a 2"-72", ANSI 150/200 PSI, general purpose butterfly valve with a one piece body for general purpose usage.

Olson Technologies Inc. features a line of Mosser and Homestead butterfly valves. The Mosser Series 830 butterfly valves are a rugged heavy duty design with large diameters. The Mosser Types AT and CT butterfly valves are suited for pressure differentials from 175 psi to 25 psi, and temperature ratings up to 350°F with materials of cast iron body, carbon steel disc, steel shafts, steel control handle, and Buna-N shaft seals.

DynaQuip Controls has been a butterfly valve manufacturer for over 40 years. They offer sizes from 1" to 48", lug or wafer styles, stainless steel bodies, aluminum, cast iron or ductile iron, and a variety of disc materials from ductile iron to teflon encapsulated. Their manual butterfly valves come in a 340/342 Series with nylon coated disk. The 500/522 Series are resilient seated valves. The 600/622 Series are cartridge seated economy valves. The 899/892 Series are split wafer design. The High Seal Series is a high performance butterfly valve. DynaQuip also manufactures electrically and pneumatically actuated butterfly valves.

Johnson Controls manufactures a wide variety of butterfly valves, including commercial grade electrically and pneumatically actuated assemblies (two and three way non-spring return), industrial grade standard performance electrically and pneumatically actuated butterfly valve assemblies (two and three way), industrial grade high performance electrically and pneumatically actuated assemblies (two way non-spring return), and industrial grade standard performance manually actuated butterfly valve assemblies (two way non-spring return).

Triad Process Equipment is a ball valve manufacturer whose products are certified to ISO 9002 and are registered for use in Canada, conforming to standards set by the Canadian Technical Standards and Safety Authority. The Triad Series 750 butterfly valves have a cartridge seat design for improved ease of installation. They come in a manual type, 2" through 24", providing a low torque seal every time the valve is cycled. The Series 750 also comes in a pneumatic type, lugged or wafer style, with a spring return or double acting, 2" through 16". The Series 700 is an electric butterfly valve that comes in either lugged or wafer style, 2" through 16". Triad butterfly valves come in all AC and DC voltages and come standard with auxiliary limit switches, heaters and thermostats.

Xomox manufactures the Tufline Series of fluorocarbon lined (FEP and PFA) butterfly valves for severe chemical applications that would otherwise require highly corrosion resistant metallic valves such as alloy 20, hastelloy and titanium. Their Tufline Series 800 high performance butterfly valves come in various types, including soft seated valves, fire tested valves, high temperature valves, and cryogenic valves. The Series 7000 resilient seated butterfly valves feature a stem configuration that provides positive attachment for handles or actuators (Double “D”, 2" - 24" ), and an actuator flange that can accommodate handles, gear operators, electric actuators, and pneumatic actuators (2" - 24" per ISO 5211). The Series 7500 resilient seated butterfly valves are corrosion free, offer a permanently tight closure, and are suitable for vacuum service. The Series 9000 severe service butterfly valves feature a triple-offset design, a wide angle seat design, a torque seated resilient metal seal ring, and a bubble-tight enclosure.

Emerson is a distributor offering Fisher butterfly valves that feature an eccentrically mounted disc, and a wide application range and shutoff capability. They are designed for control and isolation service from cryogenic to high temp and pressure classes to ASME CL2500. Sizes range from NPS 2 to 72. Fisher butterfly valves offered include a flangeless valve with a splined shaft for throttling control, a multi-class rated flangeless valve for throttling control, a high-performance butterfly valve with a splined shaft for throttling control, a rotary valve that offers excellent throttling performance with an approximate linear flow characteristic providing precise throttling control, a high-performance butterfly valve featuring a keyed or square-end shaft for various on-off applications, and many other types.

FNW first started manufacturing butterfly valves for the pulp and paper industry in 1969. Today they design and manufacture resilient seated butterfly valves for industrial applications such as pulp and paper, water purification, power and utilities, chemical/petrochemical, food and beverage, OEM and HVAC. Features include flanges designed for 125/150 lbs., standard 3166SS discs and stems for strength and chemical resistance, and an ISO 5211 mounting pad with square shaft that permits direct mount actuation to reduce hysteresis (2" to 12"). FNW also designs and manufactures high performance butterfly valves that feature bi-directional bubble-tight shutoff, a double off-set configuration with a conical angled disc, are available in wafer or lug styles, are stocked in carbon by stainless and all stainless steel configurations, offer an ANSI rated retainer ring for dead end service, and are rated to full 285 PSI pressure differential on bi-direction dead-end service.

A global manufacturer of butterfly valves, AMRI offers butterfly valves for the petro-chemical plants, chlorine industry, semi-conductor industry, paper industry, acid plants, ships, power and water industries and nuclear plants. Its line of butterfly valves include ACRIS lug butterfly valve, ISORIA 10/16 elastomer-lined butterfly valve, AMRESIST ball valve with full port design, MAMMOUTH series butterfly valve with a fully elastomer lined body, and DANAIS flexible metal seated valve.