Eclipse High Pressure Check Valves / Non-Return Valves are designed to minimize resistance to flow. The PTFE seal ensures reliable operation at both low and 

High flow, zero leak, low pressure drop check valve suitable for most fluid and gas applications. Fully guided poppet with free floating O-ring design is 

Parker provides the industry's widest selection of check valves, available in a variety of end connections. Our valves are used in a diverse range of applications, from air and fuel systems to load holding. Our check valves utilize a variety of media including oil, air, and water and are made from materials such as aluminum, stainless steel, brass, and carbon steel. Parker check

Check valves are one-way or nonreturn valves that open with fluid movement and pressure, and close to prevent backflow of the pressure to upstream equipment 

Low Pressure Check Valves. Low pressure check valves are check valves used for low pressure applications. It include spring check valve, swing check valve, and wafer check valve. It allow fluids to flow in one direction only and prevent back-flow of fluids. Low pressure check valves are available in stainless steel material.

PTFE seat disc, PTFE faced diaphragms, and stainless steel nozzles make the T4403J regulators compatible with a variety of gases. LV4403C2H42 features integral relief valve set at 3 psig. Adjusting screw is concealed by a plastic cap which helps prevent pressure adjustments by unauthorized personnel. Working temperature range is -40°F to +165

Clean Room Pressure-RegulatingValves for Water, Air, and Inert Gas. To maintain contaminant-free standards in clean room environments, these valves come cleaned and bagged to Fed. Std. Class 100 and ISO Class 5 clean room standards and have a 316 stainless steel body with a smooth finish to resist dust collection.

Description: from 2 to 40 psi. Like the Basic-Check® valve, the Restrictor Check provides reliable, low maintenance service for a wide range of fluids and gases at various pressure/temperature combinations. The valve consists of a guard cage, spring, valve disc, Connection: Threaded. Flow (Cv): 5.8 to 90. Material of Construction: Stainless Steel.

Duckbill Check Valve is duckbill non-return valve, one-way check valve, performing a vital function to prevent backflow. Flow control check valve will open to allow the flow of fluid, liquid, water, air and gas as the opening or cracking pressure increased. Silicone rubber duckbill valves are widely used as seal or nozzle for breast pump, drain, medical device application.

Series 100 Standard Cartridge Check Valves. Standard cartridge and manual relief bleed valve styles. Easily inserted into fitting, manifold, or installed in-line. Sizes range from 1/4" to 3/4". 9+ plastic body material options. 7+ o-ring material options. 0.09 to 20 PSI opening pressure range. View Options.

Check valves are traditionally designed as a simple poppet/spring system where the spring is designed to equal the force created from the sealing area of the valve seat multiplied by the cracking pressure. Since the valve seat diameter in these types of valves are relatively small, less than 0.5 inches diameter, a low cracking pressure required