Butterfly Valve 301
Technical Specifications
-
Nominal diameter DN 32-2000 -
Nominal pressure PN10, PN16, PN25 -
Medium temperature -40 °C ... +220 °C -
Types of Valve End Connections wafer, lug, flanged -
Leakage Class «А» -
Mounting Position Any, except for downward-driven devices -
Types of Control — manual (lever) — manual (handwheel)— manual (gearbox)— pneumatic actuation — electric actuation -
Warranty Period 12 months -
Average Service Life 10 000 cycles -
Guaranteed Service Life Not less than 5000 cycles
Technical Drawings and Dimensions
Basic Dimensions Table
| DN | D, mm | D1, mm | L, mm | n-ød |
|---|---|---|---|---|
| 50 | 53 | 125 | 43 | 4-M16 |
| 65 | 64 | 145 | 46 | 4-M16 |
| 80 | 79 | 160 | 46 | 8-M16 |
| 100 | 104 | 180 | 52 | 8-M16 |
| 125 | 123 | 210 | 56 | 8-M16 |
| 150 | 156 | 240 | 56 | 8-M16 |
| 200 | 202 | 295 | 60 | 8-M20 |
| 250 | 250 | 355 | 68 | 12-M20 |
| 300 | 302 | 410 | 78 | 12-M24 |
| 350 | 333 | 460 | 78 | 16-M24 |
| 400 | 390 | 525 | 102 | 16-M27 |
| 450 | 441 | 585 | 114 | 20-M27 |
Tabular values for diameters DN500–DN1200 are available upon request
Product Description
Butterfly Valve (Type 301) designed for regulating and shutting off the flow of working media.
A characteristic feature of this model is the replaceable soft seat, which ensures complete bi-directional tightness. A wide range of sealing materials allows the valve to be adapted to nearly any working medium.
Design features of the model:
- Replaceable seat sealing
- Available with one-piece or two-piece stem
- Wide selection of sealing materials
- Pinless connection between disc and stems (for two-piece stem design)
- Easy installation and convenient servicing
Sealing materials:
🔹 EPDM, NBR, NR, FKM (Viton), Neoprene, Silicone, CSM
Valve bodies can be manufactured from various materials depending on the application:
🔹 Ductile iron
EN-GJS-400-15 / GGG40
🔹 Carbon steel
A216 WCB (1.0619, GP240GH)
🔹 Stainless steels (corrosion-resistant)
A351 CF8 (1.4308) / AISI 304 / A182 F304 (1.4301)
A351 CF8M (1.4408) / AISI 316 / A182 F316 (1.4401)
A351 CF3 (1.4306) / AISI 304L / A182 F304L
A351 CF3M (1.4409) / AISI 316L (1.4404)
AISI 316Ti (1.4571)
🔹 Special steels (duplex steels)
Duplex 2205 (UNS S31803/S32205, 1.4462)
Super Duplex 2507 (UNS S32750 / 1.4410)
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