C700 Series Bellow-sealed Control Valve

Name: C700 Series Bellow-sealed Control Valve
Brand: Euro Flow Control
SKU: EFC-470

Datasheet

Download datasheet (PDF)

Specifications are indicative. Final specification is confirmed at quotation.

Specifications

Confirmed at quote

Size Range: DN15 to DN300
Pressure Class: PN16, PN25, PN40, PN63, PN100, Class 150, Class 300, Class 600
End connection: Flanged
Operating temperature: -45°C to 350°C, by material

Configure your variant(manually adjust box on the right if you require a different spec)

Size
Pressure
End connection

Materials

All available material options per part. Click a pill to set it in the configurator.

Body

Temperature by material

The temperature limit follows the material grade, so the range above spans every grade offered rather than any one build. Confirmed at quotation.

High Temperature Type EIother: 230°C to 350°C (High Temperature Type EI)
Normal Temperature Type Pother: -17°C to 230°C (Normal Temperature Type P)
Low Temperature Type LE-Iother: -45°C to -17°C (Low Temperature Type LE-I)

Operating media

Highly toxic mediaStrongly corrosive mediaRadioactive mediaRare and precious media

Typical applications

Petroleum industry automatic control systems
Chemical engineering automatic control systems
Metallurgy automatic control systems
Handling of highly toxic, strongly corrosive, radioactive, and rare precious media

Actuation options

Pneumatic single-actingElectric 230V AC

Features

Metal bellows used as the dynamic sealing element, replacing traditional packing seal
Bellows completely isolates valve stem from medium, preventing leakage through valve stem outer surface
Metal bellows capable of withstanding high pressure with stable sealing performance
No packing friction; low valve stem movement resistance, improving adjustment accuracy and response speed
Eliminates risk of valve stem jamming caused by particle ingress or packing hardening
S-flow channel passage in valve body for low pressure drop loss and high flow rate
Wide adjustable ratio and high flow characteristic accuracy
CSW701/CW701: top-guided single-seat structure
CW702/CLW702: pressure-balanced cage-guided structure
CLW702: additional sealing ring between plug and valve cage for reduced leakage
Compatible with RSMF series actuators for compact structure, large output force, and long service life

Description

A series of bellows-sealed control valves comprising single-seat (top-guided), cage-guided (pressure-balanced), and low-leakage cage-guided variants. All variants employ a metal bellows as the primary dynamic sealing element, completely isolating the valve stem from the medium to eliminate external leakage. The valve body incorporates an S-flow channel passage for reduced pressure drop loss and wide adjustable ratio.

Selection notes

This control valve is a bellows-sealed single-seat, bellows-sealed cage-guided and low-leakage bellows-sealed cage-guided pattern, supplied for flanged installation.

Sizes run DN15 to DN300, in PN16, PN25, PN40, PN63, PN100, Class 150, Class 300, Class 600.

The body is offered in WCB, CF8, CF8M and CF3, so the grade can be matched to the service rather than the other way round.

Stated service media include highly toxic media, strongly corrosive media, radioactive media and rare and precious media.

Working temperature is -45°C to 350°C, by material.

Available pressure classes

Pressure classes this product is rated to.

PN16 PN25 PN40 PN63 PN100 Class 150 Class 300 Class 600

Related guides

Smart find

Linear Series configurations

View full Linear Series system →

This product is part of the Linear Series modular system. All configurations share the same hydraulically operated body: the control function is set by the pilot valve(s) attached. An existing Linear Series body in the field can be reconfigured for a different duty simply by swapping the pilot, without replacing the body.

C700 Series Single-seat Control Valve

DN15 to DN300

C700 Series Cage-guided Control Valve

DN25 to DN700

Axial Flow Control Valve

DN50 to DN1200

C700 Series Angle Control Valve

DN40 to DN300

C700 Series Specialty Control Valve

DN15 to DN300

CHM703 High-Pressure, High-Temperature, Multi-Stage Pressure-Reducing Control Valve

DN25 to DN450