Air Flow Duct Check Valves

Description: your NSF Accredited Certifier, model NU-545 features digital dual thermistor airflow sensors in the down flow and exhaust flow air to monitor and control real-time airflow ensuring safe airflows based on air velocity instead of pressure inside the plenum. Auto

• Inflow Velocity: 105 SFPM

Description: fan directs a high velocity stream of heated air towards the door opening. The hot air mixes with the incoming cold air providing a warm comfortable environment. The door heater is activated through a limit switch. When the door is opened there is a brief pre-purge and safety

• AC Voltage Required: 208 to 480 volts
• Maximum Air Flow: 6,500 to 7,900 SCFM
• Heater Type: Air Heater
• Features: Electric, Natural Gas / Propane

Description: of turbulence before it reaches the passengers. Laminar Flow Laminar flow is the smooth, uninterrupted motion of air. Turbulent flow is a more random and unorganized motion. Laminar flow is beneficial to airplane efficiency because it generates less friction or

Description: The DFT® Model WLC Wafer style Silent Check Valve is a lightweight, spring-assisted, in-line check valve that provides reliable, low maintenance service for a wide range of fluids and pressure/temperature combinations. The joint between the seat ring and body is sealed by

• Valve Size: 1 to 10 inch
• Pressure Rating: 6,170 psi
• Media Temperature: -325 to 1,000 F
• Flow (Cv): 19 to 1,355

Description: Piloted Non Return Valve, G1/8 x 6mm

• Valve Size: 0.1968505 inch
• Pressure Rating: 174.04524 psi
• Media Temperature: 14 F
• Media: Air

Description: Valve function: non-return function Screw-in or in-line installation With connecting thread at both ends, push-in connector at both ends, thread/push-in connector

• Pressure Rating: -14.50377 to 145.0377 psi
• Media: Air, Compressed Air
• Material Of Construction: Aluminum
• Features: Check Valves

Description: Valve function: piloted non-return function Pneumatically piloted Screw-in with external thread Pilot air connection: M5, G1/8, G1/4, G3/8, QS-4 Manually actuated exhaust possible with separate accessory

• Pressure Rating: 7.251885 to 145.0377 psi
• Media Temperature: 140 to 14 F
• Media: Air, Compressed Air
• Features: Check Valves, Pneumatic

Description: Check Valve, #10-32 Ports

• Valve Size: 0.19 inch
• Pressure Rating: 300 psi
• Number of Ports/Ways: 2
• Media: Air, Compressed Air

Description: The DFT® Model DLC® is a corrosion resistant, dependable, versatile and economical spring assisted, in-line check valve for a wide range of applications. Whether the fluid is liquid, gas or steam, the DLC® provides tight shut-off and protects other equipment in the system from water

• Valve Size: 0.5 to 3 inch
• Pressure Rating: 720 psi
• Media Temperature: -325 to 1,000 F
• Flow (Cv): 7 to 180

Description: The DFT® Restrictor Check Valve (RCV) is a versatile, all-purpose, spring-assisted, in-line check valve for applications that require higher cracking pressures to open the check valve than those offered by other DFT® check valves. Cracking

• Valve Size: 0.25 to 2.5 inch
• Pressure Rating: 2,500 psi
• Media Temperature: -325 to 700 F
• Flow (Cv): 5.8 to 90

Description: Ball Check Valves are ideal when leak tight shut-off is not necessary. This valve uses no elastomers and employs a metal to metal seal. The temperature range for the Ball Check Valves is -420° F to 1200° F (-251° C to 648° C). Available in pressures up to 100,000

• Pressure Rating: 15,000 to 100,000 psi
• Media: Air, Compressed Air, Gas
• Features: Check Valves

Description: The DSV® is an in-line spring-assisted check valve designed to prevent flow reversal in industries with strict cleanliness codes. To accommodate various piping arrangements, the DSV® is available as a "Vertical" or "Horizontal" valve. The Horizontal valve is for

• Valve Size: 0.5 to 3 inch
• Pressure Rating: 108 psi
• Media Temperature: -325 to 300 F
• Flow (Cv): 2.4 to 90

Description: The R-614 Multi Check Valve integrates four check valves in one compact valve body. Take advantage of the many features of this versatile line including easy manifold mounted design, integrated circuitry, Octo port outlet design, maximized performance and more. •

• Pressure Rating: 150 psi
• Media Temperature: 32 to 180 F
• Media: Air, Water
• Features: Check Valves, Mechanical Device, Other

Description: Suitable for air quality to ISO 8573.1 Class 4: dirt, water and oil High flow - up to 8.6 Cv Working pressure up to 188 psi / 13 bar working Allows free flow in one direction and provides positive checked flow in the reverse direction Wide selection of inlet and outlet

• Pressure Rating: 188 psi
• Flow (Cv): 8.6
• Media: Air, Water
• Features: Check Valves

Description: with the American Iron and Steel Act, AIS Compliant. For reference use only. Please check Flomatic's website for the latest valve product specifications.

• Valve Size: 3 to 8 inch
• Pressure Rating: 150 psi
• Media Temperature: 180 F
• Agency: ANSI, NSF

Description: is minimized. Additionally, PFA and FEP liners are inherently less porous than PTFE. Xomox Lined Swing check, Ball check, piston check and Poppet check have PFA as standard lining and uses the cast dovetail recesses and machined grooves to lock the liner to the body

• Valve Size: 0.75 to 0.5 inch
• Pressure Rating: 150 psi
• Media Temperature: -20 to 400 F
• Flow (Cv): 10

Description: The EPIC™ Flared Tube valve is a poppet style check valve with 37° flared tube connections. These connections are integral to the body and meet SAE J514 & ISO 8434-2 dimensional standards. The check valves are machined from 300 series stainless steel bar stock with

• Valve Size: 0.125 to 1 inch
• Pressure Rating: 1,395 psi
• Media Temperature: 10 to 400 F
• Flow (Cv): 0.08 to 12.6

Description: SWING TYPE 3 INCH NOMINAL SIZE 3 NOMINAL SIZE - DECIMAL 3 NOMINAL SIZE - FRACTIONAL AIR, OIL APPLICATION -20 TO 180 DEG F TEMPERATURE RATING BONDED BUMPER FOR COATING PROTECTION, END SEAL NITRILE GASKET INCLUSIONS/FEATURES CARBON STEEL BODY MATERIAL 300 PSI PRESSURE RATING 3 INCH IPS GROOVED

• Pressure Rating: 300 psi
• Media: Air, Gasoline / Diesel Fuel
• Features: Check Valves
• Material Of Construction: Steel

Description: valve fits 1/8 inch ID x 3/32 inch ID tubing, provides controlled directional flow, and eliminates the need for bonding. Qosina offers a variety of flow rates, materials, cracking pressure and back pressure options. Check Valve sample kits are also available which

• Pressure Rating: 0.087 psi
• Media: Air, Water
• Features: Check Valves, Other

Description: Designed for liquids and gases where flow reversal can cause surge and water hammer.

• Valve Size: 1.5 to 12 inch
• Pressure Rating: 150 psi
• Media Temperature: 150 F
• Number of Ports/Ways: 2

Description: PILOT CHECK VALVE, SPEED CONTROLLER, 1/8 STANDARD, UNIVERSAL, WITH ONE TOUCH FITTING. FREE 2 YEAR RADWELL WARRANTY

• Media: Air
• Features: Check Valves, Control Valves, Pilot Valves

Description: seal with each use. By nature of our free-floating design, Ark-Plas® Check Valves are "zero-gravity" fittings, and can be used in any position with immediate response to even the slightest change in pressure or flow. All Check Valves can be purchased in six

• Valve Size: 0.25 inch
• Pressure Rating: 150 psi
• Number of Ports/Ways: 2
• Media: Air, Compressed Air

Description: Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. These valves allow fluids to flow in only one direction and require a minimum pressure to open. Features Service for liquids and

• Pressure Rating: 50,000 psi
• Number of Ports/Ways: 2
• Media: Air, Gas
• Valve Type: Ball / Disk Check Valves

Description: Up to 6000 psig (413bar) Up to 204℃ (400℉) ss316 O-ring seal blow-out proof design DK-LOK OD 1/8 - OD1 inch Pipe thread 1/8 - 1"

• Pressure Rating: 6,000 psi
• Media Temperature: -18 to 399 F
• Flow (Cv): 1.8
• Number of Ports/Ways: 2

Description: Continuously bleeds off excess internal gas to maintain a safe positive pressure inside glove boxes Variable release mechanism automatically discharges any sudden surge of incoming gas Protects against accidental negative pressure by functioning as a check valve Extends life of doors

• Valve Size: 0.625 to 1 inch
• Number of Ports/Ways: 2
• Media: Air, Compressed Air
• Features: Block and Bleed Valves, Breathable Air, Check Valves, Electric, Other, Pressure Relief Valves

Description: The check valves in the VNR Series are available with M5 (10-32 UNF), 1/8" and 1/4" ports. They must be used when it is required to intercept a flow in one direction only. The design of these valves is of the poppet type and this feature allows operation at low pressures

• Valve Size: 0.25 inch
• Pressure Rating: 145 psi
• Media Temperature: 32 to 175 F
• Number of Ports/Ways: 2

Description: MAXIMATOR o-ring check valves provide high quality directional flow control and tight shutoff for liquids and gases. All check valves are supplied with glands and collars. These check valves are not to be used as a relief device. Click on the

• Valve Size: 0.25 inch
• Pressure Rating: 60,000 psi
• Flow (Cv): 0.15
• Number of Ports/Ways: 2

Description: Non-Return Valve (Check Valve) Sub-Base Mount

• Pressure Rating: 7 to 145 psi
• Media Temperature: 14 to 140 F
• Media: Air
• Features: Check Valves, Other

Description: • Compact design • In-line mounted • Quiet operation • Instantaneous shutoff against reverse flow, low forward pressure opening • Disc seats before reverse flow to avoid fluid shock on reverse pressure differential

• Valve Size: 0.25 inch
• Pressure Rating: 150 psi
• Media Temperature: 200 F
• Flow (Cv): 0.7

Description: A range of carbon steel split disc check valves in a wafer pattern suitable for fitting between PN16 and PN40 flanges. Their function is to prevent reverse flow on a wide variety of fluids for applications in process lines, hot water systems, steam and condensate systems. The

• Valve Size: 1.968505 to 11.81103 inch
• Pressure Rating: 580.1508 psi
• Media Temperature: 14 to 752 F
• Number of Ports/Ways: 2

Description: Features Simple design makes low price. Damages to seal material were reduced by double-touch system (O-ring and metal-seal). Various port sizes and seal materials. Applications Machine Tools：Milling machine, NC lathe, laser processing machine etc. Industrial furnace：General industrial furnace,

• Valve Size: 0.125 to 1 inch
• Flow (Cv): 0.28 to 6.9
• Number of Ports/Ways: 2
• Media: Air, Compressed Air, Water

Description: The Check Valves permit flow in one direction only; the operation of the check valve is based on the movement of a small disc within the housing. The disc shifts within the housing as the pressure differential changes from forward to reverse. A flat surface on one

• Valve Size: 0.0625 to 0.125 inch
• Pressure Rating: 10 psi
• Media Temperature: 40 to 120 F
• Number of Ports/Ways: 2

Description: Cost effective, space saving solution for the use of single or multiple valves. A wide variety of connector, electrical and mounting options are available to accommodate numerous applications. Convenient Line & 90° Connectors (both with LED) provide quick electrical connection when used in

• Valve Size: 0.25 inch
• Pressure Rating: 125 psi
• Media Temperature: -20 to 160 F
• Flow (Cv): 0.045

Description: Cast Iron Valves, Meeting Global Quality Standards. Model Number: LD 012-CI Key Specifications/Special Features: Types: gate, globe, check, ball, butterfly, plug, foot, angle, air, Y-strainer... Manufacturing standards: API, ANSI, BS, DIN, JIS, MSS SP Size range: from 1/2 inch

• Valve Size: 0.5 to 64 inch
• Agency: ANSI, API, DIN
• Media: Air
• Features: Angle Valves, Ball Valves, Butterfly Valves, Check Valves, Gate / Knife Valves, Globe Valves, Manual / Hand, Plug Valves

Description: High-performance check valve for use with liquid media and air pressure These brass check valves are specially designed for hydraulic and pneumatic applications in plant engineering and are well proven in applications with submesible pump, pressure, air

• Valve Size: 0.393701 to 1.968505 inch
• Pressure Rating: 696.18096 psi
• Media Temperature: -4 to 275 F
• Number of Ports/Ways: 2