AVK Fabricated STEPPED COUPLING
PN10, PN 16, PN 25
Contact
AVK Industrial Nederland BV
Schorsweg 1 8171 ME Vaassen Netherlands
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: | DN500 |
| PN: | PN 10/16/25 |
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
Datasheet
Installation, operation and maintenance manuals
Reference nos. and dimensions:
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| Reference no. | Dd1 mm |
Dd2 mm |
W mm |
L mm |
Theoretical weight/kg |
|---|---|---|---|---|---|
| 259-30-0490-0478 | 478 | 490 | 600 | 600 | 37 |
| 259-30-0532-0500 | 41 | ||||
| 259-30-0860-0820 | 820 | 860 | 970 | 970 | 64 |
| 259-3A-1070-1026 | 1026 | 1070 | 1180 | 1180 | 87 |
| 259-3B-0860-0820 | 820 | 860 | 967 | 967 | 61 |
Enquiry
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Components
| 1. | Body | Steel Fe 430B |
| 2. | Gland ring | Steel Fe 430B |
| 3. | Seals | EPDM rubber |
| 4. | Studs | Steel gr. 8.8, zinc plated, passivated |
| 5. | Washer | Steel gr. 8, zinc plated, passivated |
| 6. | Nuts | Steel gr. 8, zinc plated, passivated |
Test/Approvals
- Hydraulic test 1.5 x PN
- Belgaqua approved material
- Drinking Water Inspectorate Regulation 31 compliant
- WRAS approved materials
Standards
- 1.5 x PN
- Coating WIS-4-52-01
