The GA coupling features a smooth or serrated male-threaded hose tail with a collar, while the GI coupling consists of a smooth/serrated hose tail paired with a female-threaded nut. Both types comply with the EN14420-5 standard and are available in sizes ranging from ½" to 4". These couplings are manufactured from durable materials such as stainless steel, brass, and other alloys, ensuring reliability across demanding applications.
Equipped with gaskets made of NBR, EPDM, FPM, or PTFE, GA and GI couplings withstand working pressures up to 25 bar. They are widely used in industries including chemical processing, food and beverage, petrochemicals, airport refueling systems, and liquefied gas handling, offering secure and leak-proof connections in critical environments.
| Type GA coupling | |||
| Smooth Tail | Casted Serrated Tail | Machined Serrated Tail | |
| SIZE | PART# | PART# | PART# |
| 1/2" | SZSPGA050SS | SZSPGA050CS | SZSPGA050MS |
| 3/4" | SZSPGA075SS | SZSPGA075CS | SZSPGA075MS |
| 1" | SZSPGA100SS | SZSPGA100CS | SZSPGA100MS |
| 1-1/4" | SZSPGA125SS | SZSPGA125CS | SZSPGA125MS |
| 1-1/2" | SZSPGA150SS | SZSPGA150CS | SZSPGA150MS |
| 2" | SZSPGA200SS | SZSPGA200CS | SZSPGA200MS |
| 2-1/2" | SZSPGA250SS | SZSPGA250CS | SZSPGA250MS |
| 3" | SZSPGA300SS | SZSPGA300CS | SZSPGA300MS |
| 4" | SZSPGA400SS | SZSPGA400CS | SZSPGA400MS |
| Type GI coupling | |||
| Smooth Tail | Casted Serrated Tail | Machined Serrated Tail | |
| SIZE | PART# | PART# | PART# |
| 1/2" | SZSPGI050SS | SZSPGI050CS | SZSPGI050MS |
| 3/4" | SZSPGI075SS | SZSPGI075CS | SZSPGI075MS |
| 1" | SZSPGI100SS | SZSPGI100CS | SZSPGI100MS |
| 1-1/4" | SZSPGI125SS | SZSPGI125CS | SZSPGI125MS |
| 1-1/2" | SZSPGI150SS | SZSPGI150CS | SZSPGI150MS |
| 2" | SZSPGI200SS | SZSPGI200CS | SZSPGI200MS |
| 2-1/2" | SZSPGI250SS | SZSPGI250CS | SZSPGI250MS |
| 3" | SZSPGI300SS | SZSPGI300CS | SZSPGI300MS |
| 4" | SZSPGI400SS | SZSPGI400CS | SZSPGI400MS |
