Type 8840

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1.

General technical data

1.1. Modular process valve cluster Type 8840

Product properties

Dimensions

Further information can be found in chapter “4. Dimensions” on page 9.

Material

Housing

Precision cast stainless steel 316L (CF3M)

Actuator

INOX DN 10

CLASSIC DN 20, DN 25

ELEMENT DN 20, DN 25

Stainless steel (on request)

PA (PPS on request)

Actuator: PPS, cover: stainess steel 1.4561 (316Ti)

Seal

PTFE

Packing gland

PTFE seal with spring compensation

Nominal diameter (port connection)

DN 10 (threaded)

DN 20, DN 25 (welded)

Control function

CF A (closed by spring force)

CF B (opened by spring force) on request

Number of valve positions

DN 10 (threaded)

2…9 (clusters with larger number of valves on request )

DN 20, DN 25 (welded)

2…5 (clusters with larger number of valves on request )

Performance data

Nominal pressure

PN 25 (housing)

Pilot pressure

Max. 10 bar

Medium data

Medium

Steam, water, neutral gases, alcohols, oils, fuels, hydraulic fluids, salt solutions, alkalis and

organic solvents

Medium temperature

- 10…+ 180 °C

Viscosity

Max. 600 mm²/s

Control medium

Neutral gases, air

Process/Port connection & communication

Port connection

Threaded connection

G ⅜…G 1, NPT ⅜…NPT 1

Welded connection

ISO 4200 (on request)

Clamp connection

DIN 32676 series B (on request)

Pilot air ports

INOX DN 10

Female elbow fitting (hose Ø 4)

CLASSIC DN 20, DN 25

G ¼

ELEMENT DN 20, DN 25

Push-in connector 6/4

Approvals and conformities

Further information can be found in chapter “2. Approvals and conformities” on page 6.

Environment and installation

Ambient temperature

INOX DN 10

0…+ 60 °C

CLASSIC DN 20, DN 25

- 10…+ 60 °C (PA actuator)

+ 5…+ 140 °C (PPS actuator)

ELEMENT DN 20, DN 25

0…+ 60 °C