Pressure Vacuum Breakers

Description: vacuum breakers have been subjected to 120 psig (8 bar) of steam and then vacuum, four times a minute, and still opened freely and closed bubble-tight after a million such test cycles. High Pressure and Temperature Kadant Johnson vacuum breakers are rated

• Actuation: Mechanical Device
• Media Temperature: 365 F
• Number of Ports/Ways: 2
• Pressure Rating: 300 psi

Description: Vacuum Breakers

Description: Series 765 Pressure Vacuum Breakers are designed to be installed to provide protection against back siphonage of toxic or non-toxic liquids. They feature a durable bronze body and a check valve and air opening port in one assembly. Maximum Working Pressure: 150psi (10.3

Description: Oil-less design for low maintenance, clean operation Low cost and extreme reliability make this diaphragm pump ideal for general-purpose laboratory applications Also suitable for wire bonders, die bonders, scribers, breakers, probing stations and many other kinds of microelectronics

• Applications: General Purpose / Industrial
• Configuration: Individual Vacuum Pump
• Lubrication Style: Dry / Oil-less
• Mechanical Pump Type: Diaphragm

Description: DFT® Vacuum Breakers provide effective protection against collapse of pressure vessels, tanks and rolls. They prevent condensate "back-up" when equipment is shut down or inlet steam is reduced by modulating control valves. In piping systems, DFT® Vacuum Breakers

• Connection: Threaded, Metal Face Seal
• Material of Construction: Stainless Steel
• Media: Gasoline / Diesel Fuel, High Purity Gas, LP - Gas, Natural Gas, Sour Gas, Specialty / Corrosive Gases
• Metal Seated: Yes

Description: Series 710, 715 Atmospheric Vacuum Breakers assure positive protection against backsiphonage of impure water into the main supply in the event that pressure loss causes vacuum conditions. Series 710, 715 is ideal for hose bibs, chemical vats, X-ray tanks, turf irrigation

Description: Series VB/VBM Patented diaphragm design assures dependable, repetitive, bubble-tight sealing to protect enclosed tanks from collapse or structural damage during draining. Also eliminates siphoning of dangerous fluids,and prevents vacuum damage to sensitive instruments and filters

• Port Flange / Fitting Type: Other
• Port Size / OD: 0.7500 inch
• Types: Diaphragm Valve
• Vacuum / Pressure Range: Elevated Pressures (> 760 torr)

Description: Series LF767FR Lead Free* Freeze-Resistant Pressure Vacuum Breakers are designed to prevent backsiphonage of contaminated water under continuous pressure into the potable water supply. Its superior design protects the valve body and internal components during sudden

Description: Series 800M4QT Anti-Siphon Pressure Vacuum Breakers prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of bronze body construction, silicone rubber check valve disc, plastic check valve seat, stainless steel

• Valve Size: 0.5000 to 2 inch
• Valve Type: Vacuum Relief / Anti-siphon Valves

Description: Series 800M4FR Freeze Resistant Pressure Vacuum Breakers prevent the reverse flow of polluted water from entering into the potable water supply due to backsiphonage. It consists of bronze body construction, silicone rubber check valve disc, plastic check valve seat, stainless

• Valve Size: 0.5000 to 2 inch
• Valve Type: Vacuum Relief / Anti-siphon Valves

Description: Series 912HP High Pressure Hose Drop Dual Check Vacuum Breakers prevent the reverse flow of polluted water from processing and rendering areas from entering into the potable water supply. It consists of a brass body construction, stainless steel internal parts, dual check

• Valve Size: 0.7500 to 1 inch
• Valve Type: Check Valves, Vacuum Relief / Anti-siphon Valves

Description: Series 8 Hose Connection Vacuum Breakers permit the attachment of portable hoses to hose thread faucets and prevent the reverse flow of polluted water into the potable water supply due to backsiphonage. It consists of a brass body construction, stainless steel working parts, and a

• Primary Material of Construction: Brass / Bronze
• Valve Size: 0.7500 inch
• Valve Type: Vacuum Relief / Anti-siphon Valves

Description: DFT® Vacuum Breakers provide effective protection against collapse of pressure vessels, tanks and rolls. They prevent condensate "back-up" when equipment is shut down or inlet steam is reduced by modulating control valves. In piping systems, DFT Vacuum Breakers are

• Valve Type: Check Valves

Description: PRESSURE VACUUM BREAKER SEAT KIT, LEAD FREE. FREE 2 YEAR RADWELL WARRANTY

Description: DISCONTINUED BY MANUFACTURER, VACUUM BREAKER, 1/2 IN, 288A SERIES, ANTI-SIPHON, BRASS, 180 DEGREE F MAX. FREE 2 YEAR RADWELL WARRANTY

• Primary Material of Construction: Brass / Bronze

Description: DISCONTINUED BY MANUFACTURER, 3/8 IN LEAD FREE ANTI-SIPHON VACUUM BREAKER, BACKFLOW PREVENTER, 180DEG. F, 125PSI. FREE 2 YEAR RADWELL WARRANTY

• Valve Type: Back Flow Preventer Assembly

Description: VACUUM BREAKER FITTING, FOR BACKFLOW PREVENTION, BRASS MATERIAL W/ POLISHED CHROME FINISH, 1/2INCH FITTING SIZE, RUBBER DISC MATERIAL, NPTF INLET THREAD W/ FEMALE CONNECTION, NPT OUTLET THREAD W/ MALE CONNECTION. FREE 2 YEAR RADWELL WARRANTY

• Primary Material of Construction: Brass / Bronze
• Valve Type: Back Flow Preventer Assembly

Description: 5" butterfly valve with 10' lay flat hose Debris tank dumping: hydraulic scissors lift - power up/power down Polyethylene water tanks Automatic vacuum breaker and overfill protection 8" vacuum intake hose Boom travel tie down 4 way hydraulic

• Applications: General Cleaning
• Capacity: 11 gallons
• Features: Continuous Duty
• Media: Dry, Wet

Description: 5" butterfly valve with 10' lay flat hose Debris tank dumping: hydraulic scissors lift - power up/power down Polyethylene water tanks Automatic vacuum breaker and overfill protection 8" vacuum intake hose Boom travel tie down 4 way hydraulic

• Applications: General Cleaning
• Capacity: 9 gallons
• Features: Continuous Duty
• Media: Dry, Wet

Description: 5" butterfly valve with 10' lay flat hose Debris tank dumping: hydraulic scissors lift - power up/power down Polyethylene water tanks Automatic vacuum breaker and overfill protection 8" vacuum intake hose Boom travel tie down 4 way hydraulic

• Applications: General Cleaning
• Capacity: 5 gallons
• Features: Continuous Duty
• Media: Dry, Wet

Description: 5" butterfly valve with 10' lay flat hose Debris tank dumping: hydraulic scissors lift - power up/power down Polyethylene water tanks Automatic vacuum breaker and overfill protection 8" vacuum intake hose Boom travel tie down 4 way hydraulic

• Applications: General Cleaning
• Capacity: 16 gallons
• Features: Continuous Duty
• Media: Dry, Wet

Description: The Connector Valve is a check valve with a hex nipple or connector housing. It is designed to be used in installations where check valves with male pipe threads are required. The Connector Valve is adaptable for use as a check valve, vacuum breaker, or low pressure relief

• Actuation: Other
• Connection: Threaded, Metal Face Seal
• Metal Seated: Yes
• Number of Ports/Ways: 2

Description: speed at low pressures and lowest final pressure + One ejector stage for high forevacuum stability and stable throughput at pressures >10-3 mbar Typical Applications ¦ Vacuum coating ¦ Metallurgy ¦ Vacuum furnaces ¦ Vacuum drying

Description: speed at low pressures and lowest final pressure + One ejector stage for high forevacuum stability and stable throughput at pressures >10-3 mbar Typical Applications ¦ Vacuum coating ¦ Metallurgy ¦ Vacuum furnaces ¦ Vacuum drying

Description: The Armstrong PT-400 Series Vertical Pump Trap is the low-maintenance, non-electric solution to moving condensate or other liquids from low points, low pressures or vacuum spaces to an area of higher elevation or pressure. Condensate can be returned at temperatures well above

• Discharge Size: 0.5000 to 2 inch
• Maximum Discharge Pressure: 125 psi
• Power Source: Steam / Pressure Powered

Description: vacuum breaker includes an epoxy-coated inside and out ductile iron valve body eliminating exposure to corrosion and utilizes the Zurn Wilkins low headloss Compound Check and offers the lowest lifecycle costs on the market. To view all options, see the Specification Sheet - Model 375

• Media: Water
• Valve Type: Back Flow Preventer Assembly

Description: moving large amounts of condensate and other liquids from low points, low pressures or vacuum spaces to an area of higher elevator or pressure. Condensate can be returned at temperatures well above the 200°F (93°C) limit of conventional electric pumps without the problems of

• Discharge Size: 2 to 4 inch
• Maximum Discharge Pressure: 150 psi
• Power Source: Steam / Pressure Powered

Description: reducer coupling. The Bushing Valve also makes an excellent vacuum breaker. The high flow rate insures maximum effectiveness for vacuum breaker service. By reversing the direction of flow it can also be used as a low pressure relief valve. Available Materials

• Actuation: Other
• Connection: Threaded, Metal Face Seal
• Metal Seated: Yes
• Number of Ports/Ways: 2

Description: The Armstrong PT-200 Series Low Profile Pump Trap is a low-maintenance, non-electric solution to moving condensate or other liquids from low points, low pressures or vacuum spaces to an area of higher elevation or pressure. Condensate can be returned well above the 200°F (93°C)

• Discharge Size: 2.25 inch
• Housing Material: Cast Iron
• Maximum Discharge Pressure: 125 psi
• Power Source: Steam / Pressure Powered

Description: The Armstrong PT-3500 Series Low Profile Pump Trap is the low-maintenance, non-electric solution to moving condensate or other liquids from low points, low pressures or vacuum spaces to an area of higher elevation or pressure. Condensate can be returned at temperatures well

• Discharge Size: 0.5000 to 3 inch
• Housing Material: Cast Iron
• Maximum Discharge Pressure: 125 psi
• Power Source: Steam / Pressure Powered

Description: . The compact 3SC design fits inside a single set of ferrules, and requires no additional space in the line. The insert design makes it extremely economical when compared to full-bodied valves. The wide variety of seat materials and cracking pressure springs allows this series to be used as a

• Actuation: Other
• Connection: Clamp Flange
• Number of Ports/Ways: 2
• Pressure Rating: 725 psi

Description: size makes it extremely economical when compared to full-bodied valves. Choose from Check-All's broad selection of Seat Materials Cracking Pressure Options that allow this series to be used as a check valve, relief valve, or a vacuum breaker. Available Materials: 316 Stainless

• Actuation: Other
• Connection: Clamp Flange, Union, Butt Weld, Metal Face Seal
• Metal Seated: Yes
• Number of Ports/Ways: 2

Description: Series ASCV Anti-Siphon/Chemigat ion Check Valves are used to prevent backflow of mixtures of water and chemicals into the water supply. The spring swing silent check valve is extremely efficient. Series ASCV also features a built in vacuum breaker to provide air release and

• Media: Water, Hot Water, Cold Water, Potable Water
• Pressure Rating: 150 psi
• Primary Material of Construction: Steel
• Valve Size: 3 to 12 inch

Description: supply. However, systems can be designed for higher or lower temperatures based on available steam supply. Standard units consist of: steam heat exchanger, proportional steam control valve, steam trap, relief valve, vacuum breaker, centrifugal circulation pump, system isolation valves,

• Area Classification: Nonhazardous, Class 1 Division 1, Class 1 Division 2
• Cooling Source: Water
• Enclosure rating: NEMA 12, NEMA 4, NEMA 7, Z - Purge, X - Purge
• Fluid Transfer Specifications: Heating Only, Heating and Cooling

Description: The VB21 vacuum breakers are simple and reliable devices that automatically relieve or break an unwanted vacuum condition, restoring the atmospheric pressure. This device is particularly suitable for steam heated units of small and medium volume as heat exchangers,

Description: DUAL CHECK INTERMEDIATE VACUUM BREAKER TYPE 1/2 INCH NOMINAL SIZE ASSE 1012, CSA APPLICABLE STANDARD HEATING SYSTEM, HOT/COLD WATER SERVICE APPLICATION 250 DEG F TEMPERATURE RATING INTERMEDIATE ATMOSPHERIC VENT INCLUSIONS

• Media Temperature: 250 F
• Pressure Rating: 175 psi
• Primary Material of Construction: Brass / Bronze
• Valve Size: 0.5000 inch

Description: The ZWFR Freeze Relief Valve prevents damage from sudden or unexpected freezes, and is installed on backflow preventers and pressure vacuum breakers. The durable and compact design requires no periodic maintenance and is easy to install. To view all options, see the

• Media: Water
• Valve Type: Back Flow Preventer Assembly

Description: ) Custom configuration including bottom style exchangers. Anti-floatation brackets. Special manifold configurations. Dual coils for both heating and cooling. NOTE: Vacuum breakers recommended for fluoropolymer heat exchanger steam heating installations.

• Applications: Chemical Processing, Electronics / Power Supply Cooling
• Connection Type: Other
• Maximum Working Pressure: 30 to 60 psi
• Primary Exchanger Material: Other