Type 2921

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1.

General technical data

Product properties

Dimensions

Further information can be found in chapter “4. Dimensions” on page 7.

Material

Further information can be found in chapter “3. Materials” on page 6.

Design

Globe valve on/off

Nominal diameter

DN 10…DN 100, NPS ⅜…NPS 4

Flow direction

Flow to open (below seat)

Performance data

Operating pressure

0 bar(g) … 25 bar(g), see “5.1. Fluidic data” on page 12

Nominal pressure

PN 25 (DIN EN 1333), Class 150 (DIN EN 1759)

Seat leakage

Leakage class A (according to DIN EN 12266 - 1), seat gasket PTFE and PEEK, test medium air

(see “5.1. Fluidic data” on page 12)

K

V value

0.1 m³/h…140 m³/h, see “5.1. Fluidic data” on page 12

Medium data

Medium

Steam, water, neutral gases, alcohol, oils, fuels, hydraulic fluids, salt solution, alkali solutions,

organic solvents

Medium temperature

- 40 °C…+ 230 °C, see “5.2. Operating limits” on page 13

Viscosity

Max. 600 mm2/s

Process/Port connection & communication

Port connection 1.)

Threaded connection

G (EN ISO 228−1)

Rc (ISO 7/1 /DIN EN 10226 - 2)

NPT (ASME B 1.20.1)

Welded connection

DIN EN ISO 1127/ISO 4200/DIN 11866 B

DIN 11850 2/DIN 11866 A

ASME BPE/DIN 11866 C

SMS 3008

Clamp connection

DIN 32676 B (Rohr ISO 4200)

DIN 32676 A (Rohr DIN 11850 - 2)

ASME BPE

Approvals and conformities

Further information can be found in chapter “2. Approvals and conformities” on page 4

Environment and installation

Ambient temperature

- 10 °C…+ 60 °C

Installation position

As required, preferably with actuator upright

1.) Further versions are available on request.