R481250W232A1NL3 BU50AF0

Butterfly valve, pneumatic DA

Item number: 88867110
Description
Type R481 Butterfly valve, pneumatically operated, body with C5-M coating (min. 250 µm) and integrated leakage groove, blow-out proof shaft with dust protection, multi-mounted thanks to PTFE bush, multiple seal system with insertion slope, material is easy to read when installed
DN 250 DN 250
Body configuration W Intermediate flange version (Wafer), length FTF EN 558 series 20
Operating pressure 2 10 bar
Connection type 3 PN 16 / Flange EN 1092, FTF EN 558 series 20
Body material 2 EN-GJS-400-15 (GGG40), epoxy coated 250 µm
Disc material A 1.4408
Shaft material 1 1.4021
Liner material N NBR
Liner fixing L Liner loose
Control function 3 Double acting (DA)
Actuator version BU50AF Actuator, pneumatic, double acting, clockwise rotation, ADA0500U F10 S22
Actuator particulars 0 General industrial version (ASR/ASL/ADA/GSR/GSL/GDR), Version A (SC/SO/DR/DL), body aluminum, anodized coating 25-35μm, end caps aluminum, powder-coated, shaft C-steel + ENP, screws A2
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The GEMÜ R481 Victoria soft seated metal butterfly valve has a metal actuator and is pneumatically operated. Normally Closed, Normally Open and Double Acting control functions are available. Various pneumatic actuators are available. The butterfly valve is available in nominal sizes DN 25 to 600 and in standard installation lengths ISO 5752/20 | EN 558-1/20 | API 609 category A (DIN 3202 K1) in wafer, lug and U section body versions.

  • Low torques thanks to PTFE coated bushes
  • Bubble tight sealing, in accordance with EN 12266-1/P12, leak rate A
  • Liner material is easy to read when installed
  • Sleek disc design for higher Kv values
  • Robust body coating comparable to ISO 12944-6 C5
  • Various actuator types can be selected
  • Optional accessories are installed, set and tested so they are ready for operation