In detail
What it is made of
How it works
Manual quarter-turn gearbox
Two-way ball valve
Construction
Parts and materials
Applications
Media and industries
- Water
- Steam
- Petroleum Products
- Neutral Media
- Gaseous Media
- Water Supply
Ball valves are used as shut-off valves in heat and water supply systems, in steam, fuel and pneumatic systems with compressed air and neutral gases. Installation of valves of this series is possible in systems transporting liquid and gaseous media (water, oil, oils, steam, air, alcohols, glycol, etc.) that are not aggressive to valve materials.
Quarter-turn reducer allows to manually set the required positioning of the shut-off valve by a quarter turn, acting as an alternative to pneumatic, electric or hydraulic quarter-turn actuators.
Technical parameters of ball valves DNOVA BV3131P(3pc)-FP-W-ISO-H LONG full bore, body - stainless steel 304, welded, with quarter-turn gearbox DNOVA RDN RQN:
|
Parameter |
Value |
|
Type of connection |
Welded |
|
Type of control |
With gear reducer |
|
Application |
Water supply, heat supply, industry |
|
Ball passage |
Full-bore |
|
Working medium temperature, °C |
From -20 to 180 |
|
Control |
Gear reducer |
|
Tightness class |
A |
|
Type of valve |
Two-way |
|
Medium |
Water, steam, oil products, neutral media, gaseous media |
|
Country of manufacture |
China |
|
Warranty, years |
1 |
|
Service life, years |
5 |
Dimensions and sizes of ball valves DNOVA BV3131P(3pc)-FP-W-ISO-H LONG full bore, body - stainless steel 304, welded, with quarter-turn gearbox DNOVA RDN RQN:
| Model | L, mm | G, mm | ØC, mm |
| DN50 | 243 | 120 | 160 |
| DN65 | 290 | 150 | 260 |
| DN80 | 302 | 150 | 260 |
| DN100 | 326 | 150 | 260 |
| DN125 | 360 | 150 | 260 |
Table of parts and materials of ball valves DNOVA BV3131P(3pc)-FP-W-ISO-H LONG full bore, body - stainless steel 304, welded, with quarter-turn gearbox DNOVA RDN RQN:
|
№ |
Part name |
Material |
|
1 |
Body |
Stainless steel 304 |
|
2 |
Side element (2 pieces) |
Stainless steel 304 |
|
3 |
Ball |
Stainless steel 304 |
|
4 |
Ball seal |
PTFE |
|
5 |
Stem seal |
PTFE |
|
6 |
Bushing |
Stainless steel 304 |
|
7 |
Stem |
Stainless steel 304 |
|
8 |
Washer |
Stainless steel |
|
9 |
Nut |
Steel A2-70 |
|
10 |
Bolt |
Steel A2-70 |
Technical parameters of gearboxes DNOVA RDN:
| Name | Value |
| Gearbox model | RDN |
| Mounting method | horizontal/vertical |
| Degree of protection, IP | 67 |
Dimensions and sizes of gearboxes DNOVA RDN:
| Model | RQN3-150Z-T24 | RQN4-500Z-T30 | RQN5-500Z-T30 |
| A, mm | 170 | 240 | 240 |
| B, mm | 130 | 160 | 160 |
| ØC, mm | 160 | 260 | 260 |
| D, mm | 100 | 130 | 130 |
| J, mm | 45 | 55 | 55 |
| G, mm | 120 | 150 | 150 |
| T, mm | 50 | 70 | 70 |
| ØF, mm | 70 | 100 | 100 |
| 4M, mm | 4-M8 | 4-M10 | 4-M12 |
| HxH, mm | 14x14 | 17x17 | 22x22 |
Parts and materials table for gearboxes DNOVA RDN:
| Details | Material |
| Helm | Aluminum alloy |
| Shaft | Stainless steel |
| Body | Aluminum alloy |
- Body material
- Stainless steel AISI 304
- Maximum allowable temperature
- #ИМЯ?
- Connection type
- For welding
- Control type
- Ggearboxed
- Operating environment
- Water, Steam, Petroleum Products, Neutral Media, and Gaseous Media
- Applications
- Water Supply
- Type of seal
- PTFE
- Torque
- 50 Nm
- Limit switches
- No
- Country of origin
- China
Production. Usually 7–14 business days after you approve the quotation and pay. Made-to-specification items are confirmed in the quotation.
Freight. Not charged at checkout. A manager quotes air and sea freight to your port or airport, and nothing ships until you approve the price and the freight.
To North America. From approval and payment to the destination port or airport: air 14–24 days, sea 32–60 days. Estimates, not guarantees.
Terms. EXW Ningbo or FOB Ningbo Port; CIF on request. The agreed term is written on the Proforma Invoice.
Total items
Product subtotal