NVS AISI 304 Stainless Steel Threaded Union (Conical Seat)
NVS AISI 304 Stainless Steel Threaded Union (Conical Seat)
NVS AISI 304 stainless steel threaded union: BSP female thread on both ends, conical seat. Size range: ⅛″–4″ (12 sizes). This union has female threads on both ends and a conical seat; tightening the center nut creates a joint in a threaded line that can be taken apart later.
AISI 304 (1.4301) is a general-purpose chromium-nickel stainless steel. It is widely used in water, heating and cooling, compressed air, food processing and indoor and outdoor applications.
Applications
- Detachable connection point in threaded lines
- Pump, filter and meter connections
- Water, air and process lines
- Food and beverage installations
Size, weight and item code table
| Nominal size | Length L (mm) | Weight | Item code |
|---|---|---|---|
| DN6 (⅛”) | – | – | NVSDKR3046 |
| DN8 (¼”) | – | – | NVSDKR3048 |
| DN10 (⅜”) | – | – | NVSDKR30410 |
| DN15 (½”) | 39 | 140 g | NVSDKR30415 |
| DN20 (¾”) | 45 | 190 g | NVSDKR30420 |
| DN25 (1”) | 33 | 200 g | NVSDKR30425 |
| DN32 (1¼”) | 50 | 400 g | NVSDKR30432 |
| DN40 (1½”) | 52 | 500 g | NVSDKR30440 |
| DN50 (2”) | 58 | 800 g | NVSDKR30450 |
| DN65 (2½”) | 71 | 1.1 kg | NVSDKR30465 |
| DN80 (3”) | 87 | 1.9 kg | NVSDKR30480 |
| DN100 (4”) | 98 | 3 kg | NVSDKR304100 |
Dimensions are in millimeters. Weights are approximate unit weights. Minor variations between production batches are possible.
Technical specifications
| Specification | Value |
|---|---|
| Material | AISI 304 stainless steel |
| Material number | 1.4301 · X5CrNi18-10 |
| Design | BSP female thread on both ends, conical seat |
| Standard | DIN 2999 · ISO 228 |
| Thread | BSP female |
| Seat | Conical |
| Size range | ⅛″–4″ |
| Number of sizes | 12 |
| Brand | NVS |
Selection and installation notes
- Use PTFE tape or a thread sealant; do not over-tighten stainless threads, as this can cause galling (cold welding).
- Do not scratch the conical seating surfaces; clean them before assembly.
- Where sea water, salty environments or chloride-containing cleaning chemicals are present, choose grade 316.
- AISI 304 is intended for general use; choose AISI 316 for chloride media, sea water and swimming pool applications.
- Direct contact between stainless steel and galvanized or carbon steel can cause galvanic corrosion; use insulation (washers, unions) between different metals.
For size selection, project lists and volume pricing, contact Novus Energy on WhatsApp +90 555 005 99 84 or at bilgi@novus.tr.
This item is also available in AISI 316 grade. See the full range in Stainless Steel Fittings.