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Compression Couplings

Morris Type Compression Couplings available in galvanized or stainless steel. Compression couplings are available in a variety of gasket configurations.

Compression Couplings | Morris Type Compression Couplings | Instalok™ Compression Couplings

Inquire for actual part numbers.

Many other sizes compression couplings are available!

Standard black neoprene
gasket and stainless
grounding strip.

Compression Couplings Morris Type

Bolted couplings are available in both heavy wall pipe size and tube size up to 24″Ø.

Installation requires only a 3/4″ wrench or deep socket.  Offers easy teardown and reusability.

Models available in 3, 4, 5, and 6+ bolt configurations to safely accommodate heavy wall installations.

Galvanized with plated hardware standard. All stainless available.  Various gaskets available. white nitrile, red rubber, silicone, EPDM, Viton and Food Grade.
grade. This is the most preferred style of compression couplings. A little more expensive than Instalok™ compression couplings, yet widely preferred.

Common NamePart No. for O.D. TubingPart No. for I.D. PipePipe (O.D.)
1 1/2A 15B 1501.90
13/4A175.
2A 2B 2002 3/8
2 1/8A2125.
2 1/2A 25B 252 7/8
3A 3B 33 1/2
3 1/2A 35B 354
4A 4B 44 1/2
4 1/2A45.
5A 5B 55.563
6A 6B 66 5/8
8A 8B B8 5/8
10A 10B 1010 3/4
12A 12B 1212 3/4
14A 14B 1414

Std o-ring black
nitrile gasket Instalok™ coupling shown.
(other O-rings available)

Instalok™ Compression Couplings

Bolted couplings are available in both heavy wall pipe size and tube size up to 6″Ø. Instalok™ couplings are estimated to Install 30% faster and cost 20% less than bolt style compression couplings!

Grade 5 stress relieved bolts insure trouble free installation.

Instalok™ compression couplings are not available in stainless steel.

Instalok™ compression couplings are available with other gasket materials.

Galvanized with plated hardware standard. g

Common Name (Tubing O.D.)Length CouplingPart No. for O.D. TubingPart No. for I.D. PipePipe O.D.
1 1/24CP15062B-16ZNA1.9
13/44CP17562B-16ZNA.
24CP20042-16ZNA2 3/8
2 1/84CP21262B-16ZNANA..
2 1/44CP22542-16ZNA.
2 1/24CP25062B-16ZNA2 7/8
34CP30042-16ZCP35062B-16Z3 1/2
3 1/24CP35062B-16ZCP40042-16Z4
44CP40042-16ZNA4 1/2
1 1/26CP15062B-16ZNA1.90
1 3/46CP17562B-16ZNA.
26CP20062-16ZNA2 3/8
2 1/86CP21262B-16ZNANA..
2 1/46CP22562-16ZNA.
2 1/26CP25062B-16ZNA2 7/8
36CP30062-16ZCP35062B-16Z3 1/2
3 1/26CP35062B-16ZCP40062-16Z4
46CP40062-16ZNA4 1/2
2 1/28CP25082B-16ZNA2 7/8
38CP30082B-16ZCP35082B-16Z3 1/2
3 1/28CP35082B-16ZCP40082B-16Z4
48CP40082B-16ZNA4 1/2

Std black neoprene
gasket and stainless
grounding strip.

Quick Couplings

Quick couplings are available in 4″ and 9-1/2″ lengths for pipe from 1.0″Ø to 14″Ø and tubing 1-1/2″Ø to 14″Ø.

Tighten in seconds.

100% stainless steel.  Various gasket types available. white nitrile, red rubber, silicone, EPDM, Viton, and food grade. Use Super Grip Quick Compression Couplings only on straight end fittings. g

Common Name Tube/Pipe SizePart No. for O.D. TubingPart No. for I.D. PipePipe O.D.
4″ LONG COUPLINGS, 1 CLAMP (FOR FDA ADD (-FDA) TO END OF PART NUMBER)
1 1/4SG-166011.656
1 1/2SG-15501SG-190011.90
1 3/4SG-17501..
2SG-20001SG-237512 3/8
2 1/8SG-21251..
2 1/2SG-25001SG-287512 7/8
3SG-30001SG-350013 1/2
3 1/2SG-35001SG-400014
4SG-40001SG-450014 1/2
4 1/2SG-45001..
5SG-50001SG-556315.563
6SG-60001SG-662516 5/8
8SG-80001SG-862518 5/8
10SG-10001SG-10750110 3/4
12SG-120001SG-12750112 3/4
9-1/2″ LONG COUPLINGS, 2 CLAMPS (FOR FDA ADD (-FDA) TO END OF PART NUMBER)
1 1/41.656
1 1/21.900
1 3/4.
22 3/8
2 1/8.
2 1/22 7/8
33 1/2
3 1/2SG-400024
4SG-40002SG-450024 1/2
4 1/2SG-45002..
5SG-500025.563
6SG-60002SG-662526 5/8
8SG-80002SG-862528 5/8
10SG-10002SG-10750210 3/4
12SG-120002SG-12750212 3/4

Remember, slip couplings require TWO shrink sleeves to seal…

Shrink Sleeves for light Wall Piping Systems

A heat shrinkable polyolefin band that shrinks when heated with a heat gun and wraps around the connection.  The resulting joint is mechanically strong and is vacuum tight!  A great product. Recommended for use in systems under 15 psi.

NOTE:  Based on our experience. Shrink sleeves are the least expensive method of joining light wall tubing. Use shrink sleeves with expanded end fittings. Use compression couplings when straight ends connections are being used.

Part Number Shrink SleeveFor O.D. Tubing
SS-1501 1/2
SS-2122, 2 1/8
SS-3002 1/2, 3
SS-3503 1/2
SS-4004
SS-5005
SS-6006
SS-8008
SS-100010
SS-120012
SS-140014

Remember, slip couplings require two shrink sleeves to seal. Compression couplings require none.

Slip couplings for light Wall Systems

Available in: Carbon Steel, Galvanized Steel, Aluminum 6061, 304 SS

Used to join any two straight ends of tube or pipe. Available with expanded ends only up to 6″.

NOTE:  Compression couplings replace slip couplings.  Slip couplings are required for joining 2 straight tube ends when shrink wrap sleeves are used in lieu of compression couplings.
All dimensions are in inches

SizeE – I.D.CGauge
SC-1531 1/2316
SC-2002316
SC-2132.12316
SC-2532 1/23 1/216
SC-3033416
SC-3533 1/24 1/216
SC-4034516
SC-5035614
SC-6036714
SC-8038814
SC-1003101012
SC-1203121212
SC-1403141412

Can be used for joining any two straight ends of tubing or fittings.  The slip coupling is a solid sleeve that fits the O.D. of the joint which can then be brazed, welded, or covered by a shrink sleeve. Slip couplings are used when shrink wrap sleeves are used instead of compression couplings.

INSTALOK™ Couplings: These couplings are designed specifically for conveying plastic pellets and other non-sanitary vacuum applications. Available in sizes ranging from 1.5 inches to 6 inches. Construction: Galvanized steel. O-rings available in: Black Nitrile White Nitrile Viton™ Key features: Eliminates the risk of product contamination due to deteriorating gasket material. Installs in less the time compared to competing couplings. Costs 20% less than traditional compression couplings. Ideal for vacuum systems and conveying plastic pellets. Compression Couplings (Morris Type): Designed for vacuum and pressure applications in pneumatic conveying or industrial vacuum systems. Available in sizes from 1.5 inches to 14 inches. Construction: Heavy-gauge, zinc-plated steel. Standard gaskets: Black Neoprene or White Nitrile Rubber. Stainless steel grounding strips (to eliminate static electricity build-up) are standard. Gasket protectors available to eliminate gasket wear. Stainless steel couplings available upon request. Suitable for both tube size and heavy wall pipe installations. Super Grip Couplings: Quick couplers for dry, bulk transport tank tubing and applications involving periodic line cleaning or quick access. Available in sizes from 1.5 inches to 12.75 inches. Type 304 stainless steel bright-annealed construction for durability. Provides better support than rubber hose and band clamps. FDA-approved gum rubber gaskets for food applications. Remember that Instalok™ Compression Couplings install faster and cost less than traditional bolt-style compression couplings, making them an efficient choice for various applications.