Butterfly Valve 301

DN32-2000 PN10-25

Own production

Certificates and full package of documents

Production time from 20 days

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

Nominal Pressure PN16

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)