1/4 in (8 mm) Galvanised Female Union, Steel-Steel Seat | SU08SSG
Available
This AAP galvanised female union is a mild steel fitting with BSP threads. It is supplied in 11 sizes, 1/4 in (8 mm) to 4 in (100 mm).
A union joins two pipes with a joint that can be broken and made again without turning the pipework. This one is threaded inside (female) at both ends and has a ball to cone seat, as AAP describes. AAP lists steel unions for make-and-break joints on filters, valves, hoses, machinery and general piping that needs periodic disconnection (manufacturer-stated).
This one has a steel-steel seat. AAP describes steel-steel (SS) seats as a general purpose combination recommended where vibration is present, with integral seats (manufacturer-stated).
AAP states that its steel threaded pipe fittings are made to BS EN 10241:2000 (manufacturer-stated). AAP states that its zinc coated unions are electro zinc plated, which coats them inside and out (manufacturer-stated). AAP states that unions up to 2 in nominal bore are each tested to 13.8 MPa and sample tested to 20.7 MPa, and unions over 2 in are each tested to 10.3 MPa (manufacturer-stated). These are test pressures, not working pressures, so confirm the pressure and temperature for your application with AIMS before you order. AAP lists its zinc coated unions as particularly suitable where there is condensation, such as in air and gas lines (manufacturer-stated).
Where this product is used
- Make-and-break joints on filters, valves, hoses and machinery
- General piping that needs periodic disconnection
- Joining two male threaded pipes with a joint that can be taken apart
Features
- 11 sizes, 1/4 in (8 mm) to 4 in (100 mm)
- Mild steel, galvanised, BS EN 10241:2000 (manufacturer-stated)
- Steel-Steel seat
- BSP threads
Key specifications
| Specification | Detail |
|---|---|
| Brand | AAP |
| Product | Galvanised female union, mild steel |
| Finish | Zinc coated: electro zinc plated (manufacturer-stated) |
| Material | Mild steel. AAP lists carbon 0.25 per cent maximum and tensile strength 320 N/mm2 minimum for its steel fittings (manufacturer-stated) |
| Thread | BSP (British Standard Pipe) thread; AAP lists ISO 7 and AS 1722 Part 1 for its threads (manufacturer-stated) |
| Ends | Female (internal) thread at both ends |
| Seat | Steel-Steel, ball to cone (manufacturer-stated) |
| Applicable standard (manufacturer-stated) | BS EN 10241:2000, steel threaded pipe fittings (manufacturer-stated) |
| Test pressure (manufacturer-stated) | Unions to 2 in: each 13.8 MPa, sample 20.7 MPa; over 2 in: each 10.3 MPa |
| Sizes | 1/4 in (8 mm) to 4 in (100 mm) (11 sizes) |
Options and part numbers
| Size | Part number | Length A (mm) | Nut flats B (mm) | Body flats C (mm) | Weight (kg) |
|---|---|---|---|---|---|
| 1/4 in (8 mm) | SU08SSG | 42 | 35 | 21 | 0.16 |
| 3/8 in (10 mm) | SU10SSG | 42 | 35 | 21 | 0.14 |
| 1/2 in (15 mm) | SU15SSG | 46 | 42 | 26 | 0.23 |
| 3/4 in (20 mm) | SU20SSG | 54 | 52 | 34 | 0.41 |
| 1 in (25 mm) | SU25SSG | 61 | 61 | 40 | 0.58 |
| 1-1/4 in (32 mm) | SU32SSG | 71 | 76 | 50 | 0.9 |
| 1-1/2 in (40 mm) | SU40SSG | 82 | 83 | 56 | 1.28 |
| 2 in (50 mm) | SU50SSG | 88 | 101 | 70 | 2 |
| 2-1/2 in (65 mm) | SU65SSG | 108 | 120 | 86 | 3.59 |
| 3 in (80 mm) | SU80SSG | 119 | 136 | 103 | 4.98 |
| 4 in (100 mm) | SU94SSG | 121 | 163 | 127 | 6.55 |
A is the approximate overall length, B the nut across flats and C the body across flats, as lettered on the AAP drawing, in millimetres. AAP states the nut is hexagon up to 1 in and octagon from 1-1/4 in, and the body flats are octagon. Weights are approximate, in kilograms per piece.
Selecting the right option
Choose the size to match your pipework. These fittings are BSP threaded, so check that your pipe or fitting is BSP and not NPT before you order.
Related products
See also AAP Galvanised Steel Female Union, Steel-Bronze Seat, AAP Galvanised Steel Male-Female Union, Steel-Steel Seat, AAP Galvanised Steel Hexagon Nipple and AAP Galvanised Steel Socket, Heavy Type.
Couldn't load pickup availability
Secure Checkout. We do not store credit card details
-
1/4"
Model Number: SU08SSG
-
3/8"
Model Number: SU10SSG
-
1/2"
Model Number: SU15SSG
-
3/4"
Model Number: SU20SSG
-
1"
Model Number: SU25SSG
-
1-1/4"
Model Number: SU32SSG
-
1-1/2"
Model Number: SU40SSG
-
2"
Model Number: SU50SSG
-
2-1/2"
Model Number: SU65SSG
-
3"
Model Number: SU80SSG
-
4"
Model Number: SU94SSG
