DK-LOK® Featured Products

Tools and Accessories

Tools and Accessories

Applying a cold-weather liquid leak detector product to a pressurized connection, the formation of bubbles at the connection location will expose even the slightest leak, making this is a vital tool for any manufacturing or industrial operation Our leak detection products are made to offer detection abilities up to a temperature of -65 degrees Fahrenheit… Read more »



DK-LOK® offers a wide range of all Stainless Steel Industrial and Process Pressure Gauges All DK-LOK® gauges come standard dual scale psi/bar and either Dry or Liquid filled The DK63/DK10 & DK45 are all built around the same engine…our Bourdon Tube pushes the limits of industry excellence View DK63 / DK10 View DK45

V33 Check Valve

V33 Check Valves

Inline check valves with fixed and adjustable cracking pressure settings Reliable DK-LOK® Two Ferrule and Single Ferrule Tube Fitting, Male and Female NPT, British Standard Pipe Tapered, British Standard Pipe Parallel, and SAE O-Ring Boss Seal pipe end connections Stainless Steel, Brass and Exotic Alloy, and NACE® body material construction FKM and NBR standard elastomer… Read more »

V15 Needle Valve

V15 Needle Valves

Hard chrome-plated stem threads assure extended service life with metal-to-metal Vee & Regulating stems for elevated temperatures Repetitive soft seat for gas, leak-tight with reliable DK-LOK® Tube Fitting Ends and NPT & ISO Male & Female Choice of Round handle and Bar handle, packing nut Allows external adjustments of packing, panel nut allows panel installation… Read more »

VH36 Check Valve

photo of vh36 vch36 fitting

Fixed spring settings of 1/3,#, 1#, 5#, 10# & 25# as standard; other options available Reliable DK-LOK® Tube Fitting, NPT, and ISO pipe end connections Stainless Steel material construction View Check Valve Catalog

VEX110 Needle Valve

Photo of VEX110 Needle Valve

Premium four (4) component sealing with a unique pressure reacting sealing system eliminates the need for packing adjustment Sealing cup energizes with system pressure for leak-tight operation and a backseat stem design preventing stem blowout High precision machining provides low valve operating torque, with stem packing located below the stem threads preventing thread lubricant washout and… Read more »

Calibration Fittings

photo of calibration fitting

DK-LOK® Calibration Fittings connect directly to the bleed port of a differential pressure transmitter, helping to simplify the calibration process. Two sizes of threads are available to fit the vent port of Yokogawa/Rosemount, and Honeywell differential pressure transmitters. The conical metal-to-metal sealing face on the straight thread requires no PTFE tape. View Tube Fitting Catalog

Dielectric Unions

Photo of Dielectric Union

The DK-LOK® Dielectric tube fitting is designed to apply where static electrical currents flowing through a pipe or tubing line must be interrupted to protect instruments. The DK-LOK® Dielectric tube fitting is commonly used in natural gas transmission stations where they are installed on impulse lines. This fitting interrupts cathodic current flow while permitting full fluid flow. View Tube… Read more »

V64 Relief Valve

Photo of Relief Valve 64

Wide Media Applications: Air, Gas, CNG, and Liquid Relief applications High-Performance Soft Seat: provides repetitive and reliable bubble-tight seal Constructed of Stainless Steel and Carbon Steel, along with a protective painted surface Working Pressure: 6,000 psig (413 bar); Cracking Pressure Range: 15 to 5,500 psig (1.03 to 379 bar) Every valve is factory tested for… Read more »

V63/66 Relief Valve

Photo of Relief Valve V63 V66

V63 Specs: Maximum working pressure: 300 psig @ 68°F (20.6 bar @ 20°C) Cracking pressure range: 10 to 225 psig (0.68 to 15.5 bar) V66 Specs: Maximum working pressure: 6,000 psig @ 68°F (413 bar @ 20°C) Orifice size: 3.4 mm (0.13 in.) Cracking pressure range: 50 to 6,000 psig (15.1 to 413 bar) View… Read more »