Naryan-Mar and Nenets Autonomous District
Prefabricated PURF-insulated tube manufacturing and supplies to Naryan-Mar
Prefabricated PURF-insulated tubes are steel tubes with PURF insulation with external protection PE sheath (for underground installation) or GS cladding (for overground installation).
For selection of prefab PURF-insulated items for projects in Nenets Autonomous District, the conveyed medium properties and the climate of the region must be considered since the climate directly stipulates the insulation type selection.
The types standard (1) and heavy-duty (2) have different insulation shell thickness. This, in its turn, influences the OD of the PE sheath and GS cladding of the tubes and the fittings, the consumption of PUR components and, in the long run, the final purchase order price.
The climate of the Nenets Autonomous District is sub-Arctic everywhere, with transition to moderately maritime climate along the coast line. The average air temperature in January ranges from −9 °С in the West to −20 °С in the East. The average air temperature in July ranges form +6 °C in the North to +13 °C in the South. The annual average precipitation is 456 mm. In this area, GOST 30732-2020 recommends tubes and fittings with type 1 insulation.
Table. Dimensions of insulated tubes in protective PE sheath, mm
OD and wall thickness* of steel tubes | Type 1 | Type 2 | ||||
Average OD of insulated tubes in protective PE sheath | PUR foam thermal insulation thickness* | Average OD of insulated tubes in protective PE sheath | PUR foam thermal insulation thickness* | |||
Rated | Permissible deviation (+) | Rated | Permissible deviation (+) | |||
32x3.0 | 90; 110; 125 | 2,7; 3,5; 3,7 | 26,8; 36,5; 44,0 | - | - | - |
38x3.0 | 110; 125 | 3,2; 3,7 | 33,5; 41,0 | - | - | - |
45x3.0 | 125 | 3,7 | 37,5 | - | - | - |
57x3.0 | 125 | 3,7 | 31,5 | 140 | 4,1 | 38,5 |
76x3.0 | 140 | 4,1 | 29,0 | 160 | 4,7 | 39,0 |
89x4.0 | 160 | 4,7 | 32,5 | 180 | 5,4 | 42,5 |
108x4.0 | 180 | 5,4 | 33,0 | 200 | 5,9 | 45.4 |
114x4.0 | 200 | 5,9 | 39,8 | 225 | 6,6 | 40,2 |
133x4.0 | 225 | 6,6 | 42,5 | 250 | 7,4 | 52,0 |
159x4.5 | 250 | 7,4 | 41,6 | 280 | 8,3 | 54,6 |
219x6.0 | 315 | 9,8 | 43,1 | 355 | 10,4 | 56,1 |
273x7.0 | 400 | 11,7 | 57,9 | 450 | 13,2 | 62,4 |
325x7.0 | 450 | 13,2 | 56,9 | 500 | 14,6 | 82,9 |
377x7.0 | 500 | 14,6 | 55,3 | 560 | 16,3 | 81,3 |
426x7.0 | 560 | 16,3 | 60,0 | 600 | 16,3 | 84,5 |
530x7.0 | 710 | 20,4 | 81,1 | 775 | 23,4 | 94,1 |
630x8.0 | 800 | 23,4 | 75,0 | 875 | 26,3 | 123,8 |
720x8.0 | 900 | 26,3 | 78,8 | 975 | 29,2 | 127,6 |
820x9.0 | 1000 | 29,2 | 77,6 | 1075 | 32,1 | 126,2 |
920x10.0 | 1100 | 32,1 | 76,2 | 1175 | 35,1 | 125,1 |
1020x11.0 | 1200 | 35,1 | 75,1 | - | - | - |
1220x11.0 | 1425 | 38,2 | 85,2 | - | - | - |
1420x12.0 | 1600 | 41,2 | 70,4 | - | - | - |
* Dimensions for reference only |
Table. Dimensions of insulated tubes in protective GS sheet cladding, mm
OD and wall thickness* of steel tubes | Type 1 | Type 2 | ||||
Average OD of insulated tubes in protective PE sheath | PUR foam thermal insulation thickness* | Average OD of insulated tubes in protective PE sheath | PUR foam thermal insulation thickness* | |||
Rated | Permissible deviation (+) | Rated | Permissible deviation (+) | |||
32x3.0 | - | - | - | 125 | 0.55 | 45.95 |
38x3.0 | - | - | - | 125 | 0.55 | 42.95 |
45x3.0 | - | - | - | 125 | 0.55 | 39.45 |
57x3.0 | - | - | - | 140 | 0.55 | 40.95 |
76x3.0 | - | - | - | 160 | 0.55 | 41.45 |
89x4.0 | - | - | - | 180 | 0.6 | 44.9 |
108x4.0 | - | - | - | 200 | 0.6 | 45.4 |
114x4.0 | 200 | 0.6 | 42.4 | 225 | 0.6 | 54.9 |
133x4.0 | 225 | 0.6 | 45.4 | 250 | 0.7 | 57.8 |
159x4.5 | 250 | 0.7 | 44.8 | 280 | 0.7 | 59.8 |
219x6.0 | 315 | 0.7 | 47.3 | 355 | 0.8 | 67.2 |
273x7.0 | 400 | 0.8 | 62.7 | 450 | 0.8 | 87.7 |
325x7.0 | 450 | 0.8 | 61.7 | 500 | 0.8 | 86.7 |
377x7.0 | 500 | 0.8 | 60.7 | 560 | 1.0 | 90.5 |
426x7.0 | 560 | 1.0 | 66.0 | 600 | 1.0 | 86.0 |
530x7.0 | 675; 710 | 1.0 | 71.5; 89.0 | 775 | 1.0 | 121.5 |
630x8.0 | 775; 800 | 1.0 | 71.5; 84.0 | 875 | 1.0 | 121.5 |
720x8.0 | 875; 900 | 1.0 | 76.5; 89.0 | 975 | 1.0 | 126.5 |
820x9.0 | 975; 1000 | 1.0 | 76.5; 89.0 | 1075 | 1.0 | 126.5 |
920x10.0 | 1075; 1100 | 1.0 | 76.5; 89.0 | 1175 | 1.0 | 126.5 |
1020x11.0 | 1175; 1200 | 1.0 | 76.5; 89.0 | - | - | - |
1220x11.0 | 1375; 1425 | 1.0 | 76.5; 101.5 | - | - | - |
1420x12.0 | 1575; 1600 | 1.0 | 76.5; 89.0 | - | - | - |
* Dimensions for reference only |
We understand that it is not so easy to consider all details in purchase orders with many positions, or when you make your first selection of prefabricated PURF-insulated piping items. We assist you in detailed design analysis: we consult you, select the required fittings, calculate the number of the joint insulation kits (JIK) and the freight price to Naryan-Mar or any other location in Russia.
Why should prefab PURF-insulated piping items be better ordered directly from us, if your location is Naryan-Mar?
‘Saverhot’ is one of Russia’s largest piping insulation factories. Our capacities enable us to manufacture up to 2,400 m tubes and up to 200 fittings per shift (e.g., dia. 32, 45, 57 mm).
But it is not the quantity that really matters. The quality is our main commitment! That is why we process only certified factory-made steel tubes, primary PE granulates, and refrigerant-based PUR foaming agent.
How does the shipment reach Naryan-Mar?
On our trucks, we can deliver products to an object in North Ossetia within an average of 10 days. We also consider delivery by your vehicles, a river vessel, a ferry or on winter ice roads.
How to contact us
If you need to buy prefab PURF-insulated tubes with delivery to Naryan-Mar or a pricelist of our products, you are welcome to contact us on any way at your discretion, and our employees will provide all required information to you.
Tel: 8 (800) 550-26-97