Port Cap Manifold for Wako /38-400 shallow Thread, 7-Port, size M, (4) 1/8" NPT, (3) 1/4-28, Polypropylene

Port Cap Manifold for Wako 38-400 shallow Thread, 7-Port, size M, (4) 1/8" NPT, (3) 1/4-28, choose from a polypropylene or PTFE insert.

A close cousin to the taller 38-430 finish, outside of laboratory circles the 38-400 thread is ubiquitous - appearing on household containers from dairy products to spice jars. In the lab, this thread is found on name brand bottles such as Wako® - both glass and plastic - and Cubitainer® collapsible containers and “boxed bottles” for easy shipment of liquids. Although similar in appearance to the Nalgene® 38-415 thread, the two are not compatible.

Although practically all the port caps could be used for either solvent extraction or waste collection, the difference in function lies in how ventilation is handled. During solvent extraction, air must enter the bottle to displace solvent removed - a problem resolved with a one-way check valve. The removeable valve is constructed of inert PTFE components with stainless steel spring, compatible with most laboratory solvents, with a low opening pressure below 1psi to avoid pump cavitation.

Tubing is secured to the Type A threaded ports (1/4-28 UNF) in the inert PTFE center insert. The insert rotates independently from the Polypropylene cap collar - a feature which prevents twisted tubing when the cap is removed. The default tubing connections are for 1/8" (3.2mm) OD tubing, but many tubing adapter sizes are available.

This port cap manifold cap is designed to fit quick disconnect cans and has 7 ports

• "Medium size" manifolds feature (3) Type A ports (1/4-28 UNF) and (4) Type C ports (1/8" NPT)
• The manifold insert is the wetted component and is made from either PTFE or polypropylene
• Outer spin cap is made from polypropylene
• Smallest hole (Type A) accepts 1/4-28 UNF tubing adapters (sold separately)
• Largest hole (Type C) accepts 1/8” NPT tubing adapters (sold separately)