We are proud to have the sole agency in KSA from DK-LOK Korea which is a leader in the manufacturing of tube fittings and valves in the world.

We stock wide range of tube fittings and tube valves in our Dammam warehouse ready upon request.


DK-LOK VR Series Tube Fitting

  • Outstanding Vibration Resistant Design with patented “HOOK”
  • Red Ring in Body facilitates Visual Inspection in Make-Up as well as in Operation
  • Sturdy Stainless Steel Construction

• VR(Hook) : 1/4″, 3/8″, 1/2″, 3/4″, 1″ O.D

• VRB(Bushing) : 1/4″, 3/8″, 1/2″ O.D


DK-Lok Tube Fittings

Dk-Lok Tube Fitting is designed using industrial codes and specifications with additional Cutting-Edge Engineering on swaging action and sealing integrity.

Dk-Lok provides excellent leak-free sealing on high pressure gas, vacuum, impulse, thermal shock, heavy vibration, and many other stringent applications.

ㆍ1/16 to 2 in OD/ 2mm to 50mm OD
ㆍHeat-code Traceability
ㆍGaugeable Feature
ㆍRolled Male Thread Construction


Dk-Lok Z Series Fittings

  • Size : 1/4″, 3/8″, 1/2″, 3/4″, 1″ O.D
  • Material : Manufactured in Stainless Steel 316
  • Pressure and Temperature Ratings : Identical to DK-Lok Tube Fittings
  • Dimensions : Fittings are dimensionally Identical to DK-Lok Tube Fittings

• Size : 1/4″, 3/8″, 1/2″, 3/4″, 1″ O.D
• Material : Manufactured in Stainless Steel 316
• Pressure and Temperature Ratings : Identical to DK-Lok Tube Fittings
• Dimensions : Fittings are dimensionally Identical to DK-Lok Tube Fittings


Hose Adapter Fittings

  • DK-Lok Hose Adapter Fittings are designed for use with soft plastic or rubber tubing.
  • Standard hose barb design is for use with hose sleeve or hose clamp.
  • DK-Lok hose adapter fittings are reusable.
  • Stainless steel and brass construction

ㆍStainless Steel and Brass
ㆍ1/8 to 1 in. Hoses
ㆍMale Adapter, Female Adapter
ㆍTube Adapter
ㆍDK-Lok Tube Fitting Adapter
ㆍHose Sleeve

Instrumentation Pipe & Weld Fittings

Instrumentation Pipe & Weld Fittings

  • Wrench flat body design allowing standard Hex. wrench assembly.
  • Attractive finishes to suit precision equipment.
  • Much less-weight design compared to Class 3000 pipe fittings.
  • Fine pipe thread construction equals or exceeds the requirement of ASME B1.20.1 to ensure maximum thread engagement.
  • Male pipe threads capped for protection from damages.
  • Fitting materials available in SS316, Brass and Carbon Steel.

ㆍPipe thread 1/8 to 1 in.
ㆍTube Socket Welding 1/8 to 1 in.
ㆍSS316, Brass and Carbon Steel
ㆍThread Fittings are available 3 different ratings Standard rating, 6K, and 10K
ㆍWeld Fittings Tube Socket Weld Pipe Butt Weld


Bite type Fittings – JIS

Bite type fitting consists of three parts : Body , Sleeve and Nut, and is designed to work over medium and heavy wall tubing.

When tightening nut, sleeve driven forward on the tube then bites the tube with the edge of sleeve, this is how sealing is achieved and results in internal ridge inside the tube.

ㆍJIS B2351 & DIN 2353 Standard
ㆍ6 to 42 mm OD
ㆍStainless Steel, Carbon Steel and Brass JIS B2351 & DIN 2353 Standard
ㆍStainless Steel, Carbon Steel and Brass

Bite type Fittings-DIN

Bite type Fittings – DIN

The DK DIN bite type tube fitting is a flareless metric fitting that consists of a body, a progressive ring (sleeve) and a nut. On assembly, two cutting edges of the progressive ring bite into the outer surface of the tube ensuring the holding for high tube pressure.

Available in three series, DK DIN bite type tube fittings and accessories are manufactured in accordance with DIN2353/DIN EN ISO8434-1. The fittings and components in this catalog are intended solely for the assembly of connections for fluid applications.

ㆍStainless Steel, Carbon Steel and Brass

ㆍNominal Pressure : PN (DIN 2401, part 1, draft)

ㆍWorking Pressure : PB (DIN 2401, part 1, draft)

DK-Lok Clean Fittings

DK-Lok Clean Fittings

Passivation is done in accordance with ASTM A380 and the Ultra-sonic cleaning in clean room (class 100) is implemented with resistivity over 18MΩ D.I water after finishing the passivation for precision cleaning. After Cleaning, the product shall be double packed in the clean room within anti-static polyethylene bags where let high purity nitrogen in.

  • Proper design for tube fitting in the small space.
  • Optimized gap between the parts for tube fitting.
  • The leak-tight service provided from vacuum to positive pressure application.
  • Minimize space is needed for installation or removal.

• Material : Stainless Steel 316/316L

Stainless Steel 316L
Single Vacuum Melting

Stainless Steel 316L
Double Vacuum Melting

• Surface Roughness : BA Grade

DO Series O-Ring Face Seal Fittings

DO Series O-Ring Face Seal Fittings

  • Designed for rapid assembly in pipe, tube, and welded system.
  • Unique design allows easy installation where space is limited.
  • No axial clearance is required.
  • Sealing is accomplished with a captive O-ring in the body component.
  • Assemblies can be used from high pressure to critical vacuum, within a wide range of temperature.

ㆍSize : 1/8″ to 1″ (DO Size)

ㆍMaterial : Stainless Steel 316/316L

ㆍTube, NPT, SAE thread, and weld connections

K Series JIC Tube Fittings

K Series JIC Tube Fittings

  • DK-Lok K series JIC Tube Fitting consist of body, sleeve and nut and meets the requirements of SAE J514 and ISO 8434-3 standards.
  • DK-Lok K series JIC Tube Fittings are capable of connecting to inch and metric tube with no changing the Sleeve and Nut.
  • The fitting body without sleeve and nut is widely used as a hose adapter for connection to a female swivel on a hose assembly.

ㆍSize : 1/8″ to 2″ (Tube O.D Inch) 4mm to 50mm (Tube O.D Metric)
ㆍStainless Steel, Carbon Steel and Brass
ㆍUniversal Fittings for Inch and Metric tube
ㆍFittings without sleeve and nut for connection to a female swivel on a hose assembly.

Push-On Hose Fittings

Push-On Hose Fittings

  • Designed for use with high-quality and low pressure elastomeric compound hose such as textile braid reinforced synthetic rubber hose.
  • No special tools or clamps are required for installation.
  • Assemblies can be done in seconds.
  • DK-Lok Push-On fittings are reusable. Just replace the hose with no special tools.
  • Faster and easier maintenance.

ㆍHose Size : 1/4″, 3/8″, 1/2″, 5/8″, 3/4″, and 1″ O.D
ㆍDK-Lok Tube Fittings (1/4″, 3/8″, 1/2″)
ㆍTube Adapters (1/4″ to 3/4″)
ㆍUnions (1/4″ to 3/4″)
ㆍMale Connectors (1/4″ to 3/4″)

Ball & Plug Valves

Ball & Plug Valves

Blow-out proof design with internally loaded stem further Floating Ball design providing seat wear compensation and high integrity.

Check & Relief Valves

Check & Relief Valves

Valves that have not been actuated for a period of time may require a higher cracking pressure than the set cracking pressure.

Metering & Bellow Valves

Metering & Bellow Valves

Slotted handle : allows ow setting adjustment with a screwdriver. and Handle stop : mechanically helps prevent damage to stem.

Needle & Regulator Valves

Needle & Regulator Valves

DK-Lok Gap gauge allows easy inspection for sufficient tube pull-up before a system is pressurized. and Pressure rating up to 5,000psig (345bar) @100°F (38°C)

Toogle & Rising Plug Valves

Toogle & Rising Plug Valves

Isolated threads located above bonnet O-ring prevents media contamination and thread lubricant washout. and Straight-through orifice hence ridable for easy cleaning.


Bleed & Purge Valves

DK-Lok VBV Series Bleed Valves are designed to vent the signal line pressure to atmosphere before an instrument is removed and to assist in calibration of control devices.


Diaphragm & Gauge Valves / Manifolds

The valve ensures positive and consistent shut-off with manual and offers a metal to metal seal to atmosphere for leak integrity with thin plate diaphragm.



Traps fine contamination to maintain system purity, Choice of reliable DK-Lok, NPT & ISO pipe end connections. and Standard micron filtering ranges.


Integral Block & Bleed Valve

Integral Block & Bleed Valve are integrally one-piece double block and bleed assemblies, for primary isolation of pressure take-offs, where the valve is directly mounted to the vessel or process pipe.

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We proud to serve key-manufacturers in the market from various industries both vertical and horizontal Stainless Steel and Special Metal markets.

Stainless Steel Supply Solutions

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