Mechanical Fittings

Mechanical Fittings

Providing fittings for every type and size of pipe, in every configuration, for every application.

Gajeske boasts a sizeable on-hand inventory of injection-molded and fabricated fittings as well as an array of polyethylene adapters and backing rings, bolts, and all related accessories. In addition, we carry a large selection of electrofusion fittings, mechanical fittings, and everything needed for any gas distribution project.

For Gas Applications

Compression Couplings

Sizes ¾” – 2″ IPS

Compression Male Adapters


Wide Variety of Dimensions Available

Compression Tees

Sizes ¾” – 2” IPS

Servi-Sert® Fittings (Service Head Adapters)

Threaded outlet sizes from 1/2″ CTS to 1-1/4″ IPS

PE sizes from 1/2″ CTS to 1-1/4″ IPS

Permasert® Fittings

½” CTS – 2” IPS


  • 3-Way Reducing Tees
  • Blind-End Stubs and Caps
  • Mechanical Couplings
  • Reducing Couplings
  • Repair Couplings
  • Tees, Ells, Wyes, and Reducing Ells and Wyes
  • XL Large Diameter Mechanical Couplings (Poly x Poly)
  • XL Large Diameter Mechanical Couplings (Poly x Steel)
CopperSert™ Copper-to-PE Transition Couplings


Copper sizes from 1/4″ to 5/8″ O.D.

PE sizes from 1/2″ CTS to 1″ IPS


  • Couplings
  • Tees
  • Ells
  • Reducing Couplings
Con-Stab ID Seal® Mechanical Fittings

½” CTS – 2” IPS

Pressure rating 125 psi

Transition from PE to copper, PE to steel and PE to PVC.


  • Couplings
  • Tees
  • Elbows
  • End Caps
  • Reducers

For Water & Wastewater Applications

  • Universal Clamp Couplings
  • Universal Clamp Coupling with Removeable Lug
  • All Stainless Steel Universal Clamp Couplings
  • Fabricated Lug Stainless Steel Repair Clamp
  • Heavy Duty All Stainless Steel Repair Clamp
  • Large Diameter and Non-Standard Contour Pipe Repair Sleeve
  • Steel Couplings
  • Ductile Iron Couplings
  • Optimum Range Couplings
  • Flanged Coupling Adapters
  • Service Saddle with Double Stainless Steel Straps (3/4” thru 2-1/2” outlets, 2” – 24”)
  • Tapping Sleeves (6” size and larger, contact JCM for smaller sizes)
  • Tapping Sleeves with Mechanical Joint Outlet*
  • Stainless Steel Tapping Sleeve with Outlet Seal Gasket
  • Stainless Steel Tapping Sleeve with Mechanical Joint Outlet*
  • Fabricated Threaded Outlet Tapping Sleeve (1/2” – 4” Outlets)
  • Stainless Steel Threaded Outlet Tapping Sleeve

Compression Couplings from Victaulic®

  •  For Plain end HDPE Pipe – 2-8”/63-225mm
  • For HDPE-to-Steel Pipe – 2-8” IPS HDPE to 2-8”/50-200mm IPS Grooved Steel and 63-225mm ISO HDPE to 2-8”/50-200mm ISO Grooved Steel, designed to provide a single transition from plain end HDPE pipe to grooved steel sized piping system components
  • For Double Grooved HDPE Pipe – 8-36” IPS and 250-900mm ISO

All Victaulic® Couplings are designed for use with HDPE pipe from SDR 7 to 17 and meet or exceed the pressure rating of the HDPE pipe.

MJ Adapters


2″ – 24″ IPS to IPS

2″ – 12″ DIPS to DIPS.

  • Beveled for Butterfly Valves available on request.
  • Standard 45° bevel unless otherwise specified by customer.
  • Gland Packs sold separately (includes gasket, ring and bolts).
MJ Accessory Kits

2” – 24” IPS/DIPS

  • Kits include: ductile iron gland ring, rubber gasket, T-bolts, and hex nuts.

14″–24″ IPS/DIPS

  • Kits include: rubber gasket, T-bolts, heavy flat washers & hex nuts. Does not include gland ring. Black carbon steel ring must be ordered separately.
Flange Adapters


3/4″ – 54″ IPS

3″ – 30″ DIPS

  • Beveled for Butterfly Valves available on request.
  • Standard 45° bevel unless otherwise specified by customer.
Backing Rings

¾” – 54″ IPS

3″ – 30″ DIPS

  • Standard: ASTM A536, GR 65/45/12.
  • Material: Convoluted Type, Ductile Iron, 150 lb. Drilling.
  • Finish: Red Oxide Primer.
  • Epoxy coated and stainless steel backing rings available.
Wall Anchors


2” – 12” IPS

  • DR 9, 11, and 17
  • Available in FM
  • Sur-Grip Restrainers
  • HDPE Pipe Stiffeners

More sizes and/or DR’s may be available, please contact our sales representatives for more information.

Contact Us

  • (713) 688-2728
  • Corporate Headquarters
    6200 N Houston Rosslyn Rd
    Houston, TX 77091

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