Pinch Valve (Opened) 206M

DN50-1200 PN10-16

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Comprehensive Documentation

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Technical Specifications

Nominal diameter DN 50-1200
Nominal pressure PN10, PN16, PN25, PN40
Medium temperature -60 °C ... +200 °C
Body type Opened
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 6 000 cycles
Guaranteed Service Life Not less than 4000 cycles

Technical Drawings and Dimensions

Nominal Pressure PN10

Basic Dimensions Table

DN	D, mm	D1, mm	L, mm	n-ød
50	165	125	165	4-M18
65	185	145	165	8-M18
80	200	160	200	8-M18
100	220	180	250	8-M18
125	250	210	310	8-M18
150	285	240	375	8-M22
200	340	295	500	8-M22
250	395	350	625	12-M22
300	445	400	750	12-M22
350	505	460	875	16-M22
400	565	515	1000	16-M26
450	615	565	1125	20-M26
500	670	620	1250	20-M26
600	780	725	1500	20-M30

Product Description

Pinch valves model 206M are designed for the regulation and shut-off of highly abrasive media—such as slurries, powders, or coarse-grained substances, including corrosive media.

One of the main advantages of the valve is its dismountable, two-piece body and the dual-sided hose sleeve clamping mechanism. The open body design significantly facilitates valve maintenance and servicing.

Design features of the model:

Dismountable body
Open body
Straps for hose sleeve stretching
Dual-sided sleeve clamping
Quick and easy hose sleeve replacement
Open body

Recommended for use in plants:

Chemical industry (processing of corrosive and abrasive materials, transportation of powders, solid particles, disposal of process waste)
Mining and raw material processing (metal ore slurries, mineral suspensions, quartz sands, flotation and dewatering residues, abrasive and corrosive materials in processing operations)
Wastewater treatment systems (sediment and sand, raw sewage handling, lime and carbon sludge suspension transfer)
Pulp and paper industry and others where media contains solids or has abrasive properties

Working media:

Highly abrasive environments
Chemically aggressive environments
Alkalis
Acids
Water containing abrasive particles
Salt solutions
Coal
Sand
Polar solvents
Silicone oils
Environments containing fuel oil, crude oil, gasoline

Body material options:

🔹 Ductile iron

EN-GJS-400-15 / GGG40

🔹 Carbon steel

A216 WCB (1.0619, GP240GH)

🔹 Stainless steel (corrosion-resistant)

A351 CF8 (1.4308) / AISI 304 / A182 F304 (1.4301)
A351 CF8M (1.4408) / AISI 316 / A182 F316 (1.4401

🔹 Aluminum

Material of the Flexible Hose (Rubber Sleeve):

Material	Temperature Range	Properties / Applications
EPDM	-50 °C to +130 °C	Weak acids and alkalis, salt solutions, contaminated water, sand, mildly abrasive media
NR (Natural Rubber)	-40 °C to +80 °C	Highly abrasive media, sand-laden water, coal, slurries
NBR (Nitrile Rubber)	-40 °C to +120 °C	Abrasive media, contaminated water, crude oil, fuel oil, gasoline, oils
CSM (Hypalon)	-40 °C to +130 °C	Abrasive and chemically aggressive media, contaminated water
IIR (Butyl)	-50 °C to +130 °C	Abrasive media, polar solvents, silicone oils, contaminated water
NR + Linatex	-40 °C to +85 °C	Highly wear-resistant, weak acids and alkalis, salt solutions, sand, coal
SBR	-40 °C to +100 °C	Abrasive media, contaminated water, glycols, acetone
FKM (Viton®)	-20 °C to +150 °C	Chemically aggressive media, solvents, high temperatures, abrasive media

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