AVK Fabricated STEPPED COUPLING
PN10, PN 16, PN 25
Jim Marsden
National Sales Manager Mechanical & Fabricated Fittings - Water
Stepped coupling with zinc plated and passivated fasteners. Temperature Range: -10°C to +70°C Insulation essential for temperatures of 0°C and below. Maximum Working Pressure: 16 Bar, -0.8 Bar (negative pressure).
The Series 259 is a fabricated stepped coupling, for all ferrous, GRP*, PVC pipes and stainless steel pipe/welded tube suitable**, suitable for use with water, waste water and neutral liquids
| Variant 259/30-001 | |
|---|---|
| Connection: | Mechanical Joints |
| Material: | Steel |
| DN: | DN350 - DN1000 |
Features
- Corrosion resistant construction
- EPDM seals
- Short lead times
- Zinc plated and passivated coated fasteners
- Can be fabricated in any size within design range of DN350 to DN1600+
- Fusion bonded epoxy coating
- Sealing range nominal diameter +2mm to -5mm
- Angular deflection across total fitting<DN600 = 8°Dn700 to DN800 = 6°DN900 to DN1200 = 4°
- Can be used for upto -0.8 Bar negative pressure
- Options:
- 259/34 - Stainless steel bolts, 259/36 - Sheraplex® bolts
- Special sizes manufactured to order
- Sizes DN1200+ manufactured to order dependant upon application
- 25 Bar on certain sizes
- Note:
- This fitting is not designed for end load resistant applications
- *Suitable only for cc-GRP (centrifugally castglass reinforced polyester) and turned end pipes.
- **Suitable for 3mm wall thickness and above - DN300 to DN1000.
Downloads
Certificate(s)
Price list
Datasheet
Installation, Operation & Maintenance
Reference nos. and dimensions:
Scroll for more info
| Ref. no. | Dd1 mm |
Dd2 mm |
W mm |
L mm |
Theoretical weight/kg |
|---|---|---|---|---|---|
| 259-30-0419-0378 | 378 | 419 | 520 | 326 | 34 |
| 259-30-0429-0406 | 406 | 429 | 536 | 326 | 35 |
| 259-30-0453-0406 | 406 | 453 | 560 | 326 | 39 |
| 259-30-0480-0457 | 457 | 480.0 | 587 | 326 | 35 |
| 259-30-0492-0480 | 480 | 492 | 599 | 326 | 37 |
| 259-30-0507-0480 | 480 | 507 | 614 | 326 | 40 |
| 259-30-0532-0508 | 508 | 532 | 639 | 326 | 41 |
| 259-30-0545-0532 | 532 | 545 | 652 | 326 | 42 |
| 259-30-0560-0532 | 532 | 560 | 667 | 326 | 43 |
| 259-30-0635-0610 | 610 | 635 | 742 | 270 | 47 |
| 259-30-0635-0613 | 613 | 635 | 745 | 326 | 46 |
| 259-30-0650-0610 | 610 | 650 | 757 | 326 | 47 |
| 259-30-0650-0635 | 635 | 650 | 757 | 326 | 47 |
| 259-30-0667-0635 | 635 | 667 | 774 | 326 | 49 |
| 259-30-0738-0711 | 711 | 738 | 845 | 326 | 56 |
| 259-30-0738-0729 | 729 | 738 | 845 | 326 | 53 |
| 259-30-0747-0738 | 738 | 747 | 854 | 326 | 53 |
| 259-30-0752-0616 | 616 | 752 | 850 | 310 | 88 |
| 259-30-0842-0813 | 812.8 | 842.0 | 949 | 326 | 60 |
| 259-30-0842-0826 | 826.0 | 842.0 | 949 | 326 | 80 |
| 259-30-0945-0914 | 914.4 | 945.0 | 1052 | 326 | 65 |
| 259-30-1068-1048 | 1048 | 1068 | 1175 | 1175 | 402 |
| 259-30-1135-1016 | 1016 | 1135 | 1242 | 324 | 116 |
| 259-3A-0580-0535 | - |
Enquiry
Scroll for more info
Components
| 1. | Body | Steel Fe 430B |
| 2. | Gland ring | Steel Fe 430B |
| 3. | Seals | EPDM |
| 4. | Studs | Steel gr. 8.8, zinc plated, passivated |
| 5. | Washer | Zinc plated grade 8 steel |
| 6. | Nuts | Zinc plated grade 8 steel |
Test/Approvals
- Belgaqua approved material
- Drinking Water Inspectorate Regulation 31 compliant
- WRAS approved Materials
Standards
-
DN350-1200+
Note: Other pipe material and pipe OD sizes can be accommodated. Further information is available on reuqest.
