Full DK-LOK® Tube Fittings and Valve Catalog with specifications, item comparison and CAD drawings for DK-LOK® tube fittings, instrument pipe & weld fittings, valves and other valve and fitting products.

DK-LOK® tube fittings, instrument pipe & weld fittings, and valves are manufactured to stringent industry standards. With the use of only the highest grade raw material and 1/1000″ tolerance control on each and every part, DK-LOK® Fittings and Valves assures a leak-tight seal in all process, power and instrumentation applications.

DK-LOK®’s staff is committed to providing you with unparalleled customer service. Through our quality valve and fitting products, customer service, and pricing DK-LOK® is able to create a true value for you, our clients. DK-LOK® Fittings and Valves looks forward to creating a solution for whatever need you may have.


Blowdown Valves

Double Block and Bleed Valves


Bleed and Purge Valves

Check and Relief Valves

Metering and Bellow Valves

Toggle and Rising Plug Valves

Needle and Regulator Valves

Ball and Plug Valves

Diaphragm and Gauge Valves/ Manifolds

Quick Connect
Tube and Hose
High Purity
Condensed Catalog
Other Products