Model: Pneumatically operated 2/2-way angle seat valve CLASSIC

• Stainless steel or gunmetal housing with threaded, clamped or welded connection
• Long service life
• High flow rate
• Robust actuators with modular accessory program

General technical data

Product properties

Design                                  Angle seat valve

Nominal diameter (port connection)        DN 10…DN 80, NPS ⅜…NPS 3

Safety setting in case of power failure      Normally closed (control function A), normally open (control function B)

Flow direction                        Flow to open (below seat), flow to close (above seat)

Performance data

Operating pressure                       0…25 bar(g), vacuum…- 0.9 bar(g) (option)

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

Pilot pressure                            2…10 bar(g)

Seat leakage                           Leakage rate A (DIN EN 12266 - 1), seat seal PTFE and PEEK, test medium air

KV value                                3.8…140 m³/h

Medium data

Operating medium                      Steam, water, neutral gases, alcohols, oils, fuels, hydraulic fluids, salt solutions, alkalis, organic

solvents, oxygen and fuel gases of families I, II and III in accordance with the Gas Appliances

Regulation (EU) 2016/426

Medium temperature                    - 40…+ 230 °C

Viscosity                              Max. 600 mm2/s

Control medium                        Air, neutral gases

Process/Port connection & communication

Port connection 

Threaded connection                     G (DIN ISO 228 - 1)

NPT (ASME B1.20.1)

RC (ISO 7 - 1)

Welded connection                    DIN EN ISO 1127 / ISO 4200 / DIN 11866 series B

DIN 11850 - 2 / DIN 11866 series A

ASME BPE / DIN 11866 series C

SMS 3008

Clamp connection                       DIN 32676 series B (pipe: ISO 4200)

DIN 32676 series A (pipe: DIN 11850 - 2)

ASME BPE

Pilot air port

Actuator size Ø 40 (C)                 Thread G ⅛

Actuator size Ø 50 (D) … 125 (H)         Thread G ¼

Environment and installation

Ambient temperature                - 40…+ 140 °C

Degree of protection                 IP67

Installation position                 As required, preferably with actuator upright