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Home  >  Valves

Valves

Valves

Choose from a variety of product offerings within 15 categories of valve types:

Ball Valves: designed primarily for on/off service. These valves contain a ball with a hole through it. A handle or electric actuator rotates the ball 90°, turning the flow on or off. Use plastic ball valves for
liquids only; metal valves for liquids or gases.

Check Valves: self-actuated valves designed to prevent fluid from flowing backward into your system. Flow forces a ball or disk in one direction to open the valve; when flow stops, the ball or disk seats to close the valve.

Diaphragm Valves: use a flexible diaphragm to shut off flow—center of the diaphragm is pushed down into a seat. Use these valves for fluids that are dirty or have a high particulate content.

Elliptical Valves: similar to ball valves except elliptical valves use an elliptic O-ring to seal the cylinder during rotation. The seal design makes these valves ideal for vacuum applications.

Metering Valves: multi-turn valves designed to regulate the flow of fluid. These valves generally have low flow rates and high pressure differentials.

Needle Valves: feature the most accurate flow control among the valves we offer. They are an excellent choice for precise metering of liquids or gases.

Pinch Valves: squeeze shut a piece of tubing. Fluid contacts only the tubing—ideal for your high-purity fluid applications.

Plug Valves: used primarily for on/off service. Controls flow using a plug with a hole through it. Plugs can be made of rigid materials such as PTFE, making them ideal for high-purity applications.

Pressure Valves: designed to control or limit pressure—not flow—in a system. These self-actuating valves will either open a relief port or bypass the fluid when a preset limit is reached.

Proportioning Valves: designed to produce variable flow rates. Valves open and close in proportion to the signal from your controller.

Sample Valves: special three-way valve designed to tap off a portion of the main flow for sampling purposes.

Sanitary Valves: commonly feature Tri-Clamp® connections and 316 stainless steel body construction for sanitary and high-purity applications.

Solenoid Valves (Direct Lift): use a plunger that is actuated to open or close the fluid path. They generally have quicker response time than pilot-operated valves.

Solenoid Valves (Air Controlled): utilize pressure created by air or liquids for actuation purposes. These valves are either piston or diaphragm types and require differential pressure to keep valve closed. Because they don’t have a plunger, they are usually available in larger orifice sizes than direct lift
valves.

Stopcocks: similar to ball valves except stopcocks are much smaller in size. Primarily used in the laboratory for on/off control of flow or as a crude regulation of flow rate.
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EW-98553-10 Representative Photo Only.  PP Miniature Check Valve, 1/8" hose barb, Viton<small><sup>&reg;</sup></small> diaphragm

PP Miniature Check Valve, 1/8" hose barb, Viton diaphragm

Product Type Check Valves (manual),Cv 0.11,Material polypropylene
EW-98553-10
In stock.
$9.95 USD/EACH

Qty:

EW-30600-05 Stopcocks with Luer Connections

Stopcocks with Luer connection, male lock, 1-way; 100/pack, Non-sterile

Product Type Luer fitting,Material Polycarbonate
EW-30600-05
In stock.
$166.00 USD/PACKAGE of 100

Qty:

EW-30600-06 Stopcocks with Luer Connections

Stopcocks with Luer Connections; 1-way; male slip; 100/pack, Non-sterile

Product Type Luer fitting,Material Polycarbonate
EW-30600-06
In stock.
$161.00 USD/PACKAGE of 100

Qty:

EW-30600-02 Stopcocks with Luer Connections; 3-way; male lock

Stopcocks with Luer Connections; 3-way; male lock, Non-sterile

Product Type Luer fitting,Material Polycarbonate
EW-30600-02
In stock.
$26.50 USD/PACKAGE of 10

Qty:

EW-30600-00 Stopcocks with Luer Connections

Stopcocks with Luer Connections; 1-way; male lock, Non-sterile

Product Type Luer fitting,Material Polycarbonate
EW-30600-00
In stock.
$30.50 USD/PACKAGE of 10

Qty:

EW-06225-50 PVC Stopcock with Flow Indication, 1/4" NPT(F) x 1/4" NPT(F)

PVC Stopcock with Flow Indication, 1/4" NPT(F) x 1/4" NPT(F)

Product Type Stopcocks,Connections NPT(F) x NPT(F),Material PVC
EW-06225-50
In stock.
$30.00 USD/EACH

Qty:

EW-30600-07 Stopcocks with Luer Connections
EW-30600-07
In stock.
$156.00 USD/PACKAGE of 100

Qty:

Representative photo only Two way normally closed solenoid pinch valve 24 VDC 1 8 ID x 1 4 OD tubing

Two-way normally closed solenoid pinch valve; 24 VDC, 1/8" ID x 1/4" OD tubing

Product Type Solenoid Electric Valves (actuated),Tubing " ID 0.125,Max pressure psi 20
EW-98302-16
In stock.
$121.00 USD/EACH

Qty:

EW-01540-12 Representative Photo Only.  Cole-Parmer<small><sup>&reg;</sup></small> 3-Way Direct Lift Solenoid Valve; 1/16 24VDC

Cole-Parmer 3-Way Direct Lift Solenoid Valve; 1/16 24VDC

Product Type Solenoid Electric Valves (actuated),Max psi 30,Power VDC 24
EW-01540-12
In stock.
$129.00 USD/EACH

Qty:

EW-01540-18 Cole-Parmer<small><sup>&reg;</sup></small> 3-Way Direct Lift Solenoid Valve; 5/32 24VDC

Cole-Parmer 3-Way Direct Lift Solenoid Valve; 5/32 24VDC

Product Type Solenoid Electric Valves (actuated),Max psi 18,Max pressure psi 18
EW-01540-18
In stock.
$216.00 USD/EACH

Qty:

EW-30600-08 Stopcocks with Luer Connections
EW-30600-08
In stock.
$166.00 USD/PACKAGE of 100

Qty:

EW-30600-04 Stopcocks with Luer Connections; 4-way; male lock

Stopcocks with Luer Connections; 4-way; male lock, Non-sterile

Product Type Luer fitting,Material Polycarbonate
EW-30600-04
In stock.
$31.50 USD/PACKAGE of 10

Qty:

Representative photo only Multi Media Valve 3 Way NC 1 8 NPT F 12VDC 100 psi max

Multi-Media Valve 3-Way NC, 1/8" NPT(F), 12VDC, 100 psi max

Product Type Solenoid Electric Valves (actuated),Material Seal: FKM,Max psi 100
EW-01870-08
Call 1-888-358-4705 for availability.
$326.00 USD/EACH

Qty:

Representative photo only Three way solenoid pinch valve 24 VDC 1 8 ID x 1 4 OD tubing

Three-way solenoid pinch valve; 24 VDC, 1/8" ID x 1/4" OD tubing

Product Type Solenoid Electric Valves (actuated),Tubing " ID 0.125,Max pressure psi 20
EW-98302-54
In stock.
$132.00 USD/EACH

Qty:

EW-30600-01 Stopcocks with Luer Connections; 1-way; male slip

Stopcocks with Luer Connections; 1-way; male slip, Non-sterile

Product Type Luer fitting,Material Polycarbonate
EW-30600-01
In stock.
$27.50 USD/PACKAGE of 10

Qty:

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