"Snaplock"
Technical Information
Snaplock, cam and groove couplings are capable of carrying gases, liquids, powders and granules. The applications for this ‘straight through’ coupling are limited only by the
chemical compatibility of the material, the seal with the media being handled, and the working pressure requirement. Probably the simplest and most versatile quick coupling available. Interchangeable with other cam and groove products, originally made to MIL-C-27487.
 back
to top
These working pressures are given for ambient temperatures of 70°F, using Elastomeric seals. Higher temperatures and/or PTFE seals will reduce the pressure rating of the coupling. In the case of polypropylene, the maximum working temperature is 158°F(70°C) and at this temperature the working pressures below must be reduced by 40%.
| Size
Inch |
1/2 |
3/4
-2 |
2
1/2 |
3 |
4 |
5-6 |
| Material |
|
|
|
|
|
|
| Aluminum |
150 (11) |
250 (18) |
150 (11) |
125 (9) |
100 (7) |
75 (5) |
| Brass |
150 (11) |
250 (18) |
150 (11) |
125 (9) |
100 (7) |
75 (5) |
| Stainless Steel |
150 (11) |
250 (18) |
225 (16) |
200 (14) |
100 (7) |
100 (7) |
| Polypropylene |
75 (5) |
100 (7) |
|
50 (4) |
|
|
Aluminum Couplings are permanent mold cast which is a process that yields castings with a finer grain structure and better strength properties than those produced in sand casting and die casting.
Brass Couplings are forged for ½” to 3” and sand cast for all other sizes.
316 Stainless Steel Couplings are investment cast, also known as precision casting or lost wax process. SS316 is equivalent to DIN1.4404
Polypropylene Couplings are manufactured from acid resistant 20% glass reinforced Polypropylene. Max temperature for Polypropylene is 160 degrees farenheit.
back
to top
Those that are typically stocked, are shown in
red
| Size
Inch |
1/2 |
3/4
-2 |
2
1/2 |
3 |
4 |
5-6 |
| Material |
|
|
|
|
|
|
| Aluminum |
 |
|
|
|
|
|
| Brass |
|
|
|
|
|
|
| Stainless Steel |
|
|
|
|
|
|
| Polypropylene |
|
|
|
|
|
|
back
to top
All threads are NPT.
back
to top
Hose tails are double ribbed for metallic couplings, multi-serrated for Polypropylene.
back
to top
Full DIN 3.1 certification is available, on our SS316 couplings, if requested at the time of the order and will be subject to special quotation and pricing.
back
to top
Standard gaskets for metallic and polypropylene couplings are BUNA N (Nitrile)
Dependant on applications, various seals such as Buna, EPDM, Viton, Teflon Buna, Teflon Viton, Neoprene and other specialty materials. FEP/Silicon fully encapsulated is also available.
| Nominal size |
BUNA |
EPDM |
VITON |
NEOPRENE
BLACK |
TEFLON
BUNA |
TEFLON
VITON |
| inch |
mm |
Code |
Code |
Code
|
Code |
Code
|
Code |
| 1" |
13 |
 |
|
|
|
|
|
| 3/4" |
19 |
|
|
|
|
|
|
| 1" |
25 |
|
|
|
|
|
|
| 1
1/4" |
32 |
|
|
|
|
|
|
| 1
1/2" |
40 |
|
|
|
|
|
|
| 2" |
50 |
|
|
|
|
|
|
| 2
1/2" |
65 |
|
|
|
|
|
|
| 3" |
75 |
|
|
|
|
|
|
| 4" |
100 |
|
|
|
|
|
|
| 5" |
125 |
|
|
|
|
|
|
| 6" |
150 |
|
|
|
|
|
|
| Temp
°F(°C) |
| Min |
|
-40°F(-40°C) |
-65°F(-54°C) |
-20°F(-29°C) |
-65°F(-54°C) |
-40°F(-40°C) |
-40°F(-40°C) |
| Max |
|
199°F(93°C) |
300°F(149°C) |
399°F(204°C) |
224°F(107°C) |
224°F(107°C) |
225°F(107°C) |
| Marking |
| Stripe/Dot |
|
None |
White |
Red |
Green |
None |
Red on
Filler |
back
to top
Stainless Steel Handles are standard on all Stainless Steel and Polypropylene couplings.
Spark-Proof Brass Handles are fitted as standard to all Aluminium and Brass couplings.
Finger Rings are zinc plated mild steel on all sizes of Aluminium, Brass and Polypropylene couplings. Stainless Steel Rings are used on all sizes of Stainless Steel couplings.
304 Stainless Steel Pins are standard to all types of couplings.
304 Stainless Steel Pull Rings are standard on SS316 and Polypropylene couplings.
back
to top
|
