,

PTFE butterfly valve, flanged type AK131

PTFE-coated butterfly valve for corrosive and aggressive media

Nominal diameter

DN50 – DN300

Flange connection

PN10, PN16, Optional Flanschbohrung 150lbs

Case material

EN-GSJ-500-7 (GGG50) spheroidal graphite cast iron

Flap seal

PTFE

Operations

Electric, Pneumatic double-acting & single-acting, Hand lever, Gearbox

  • In stock
  • European quality
  • Unbeatable prices

PTFE-lined butterfly valve: flanged connection

The PTFE-lined butterfly valves have been designed with a PTFE lining at least 3 mm thick to ensure an optimum level of protection. The PTFE-lined butterfly valves are available in wafer and flanged versions with connections rated at PN10/16/150 lbs from DN40 to DN300. The PTFE-lined butterfly valves can be operated using a hand lever, a pneumatic actuator or an electric actuator.

Automation of PTFE butterfly valves

The butterfly valve can be fitted in accordance with ISO 5211 standards. Fergo Armaturen GmbH offers a wide range of automation solutions. Fergo Armaturen has extensive experience in the field of automation technology.
Please contact us for further details and enquiries. Our professional experts will be happy to advise you.

Design: Fergo offers fully assembled butterfly valves with pneumatic or electric actuators, complete with additional accessories such as solenoid valves, mounting brackets, adaptors and fittings such as position indicators, position transmitters, limit switches and position controllers.

Butterfly Valve Type AK131-DYTLL: Disc: CF8M + PTFE Coating

  • DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300
  • Series 20WP4040
  • Flanged housing – 2-piece
  • Seal-closing – Centrically mounted
  • Between-flange installation, PN10, PN16 – Optional: 150 lbs flange bore
  • Head flange according to ISO 5211
  • Housing: EN-GSJ-500-7 (GGG50) spheroidal graphite cast iron
  • Disc: ASTM A182 F316 (CF8M), PTFE-coated
  • Nominal Pressure (max.): 16 bar
  • Seat ring: PTFE
  • Temperature (min. – max.): -25°C to +200°C
  • Operation: hand lever, gearbox, pneumatic and electric drive
  • Accessories & Options: Limit switch box, solenoid valve, positioner, spindle extension

Butterfly Valve Type AK131-DSTLL: Disc: CF8M

  • DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300
  • Series 20WP4040
  • Flanged housing – 2-piece
  • Seal-closing – Centrically mounted
  • Between-flange installation, PN10, PN16 – Optional: 150 lbs flange bore
  • Head flange according to ISO 5211
  • Housing: EN-GSJ-500-7 (GGG50) spheroidal graphite cast iron
  • Disc: ASTM A182 F316 (CF8M)
  • Nominal Pressure (max.): 16 bar
  • Seat ring: PTFE
  • Temperature (min. – max.): -25°C to +200°C
  • Operation: hand lever, gearbox, pneumatic and electric drive
  • Accessories & Options: Limit switch box, solenoid valve, positioner, spindle extension

Technical Specifications

Technical Specifications
Type Butterfly valve
Nominal diameter DN50 – DN300
Flange connection PN10, PN16, Optional Flanschbohrung 150lbs
Face-to-face EN 558 S20
Case material EN-GSJ-500-7 (GGG50) spheroidal graphite cast iron
Flap CF8M (1.4408) & PTFE PFA-lined
Flap seal PTFE
Pressure range 16 Bar
Operations Electric, Pneumatic double-acting & single-acting, Hand lever, Gearbox

Documents & 3D

FERGO Special Solutions

When standard
isn’t enough.

Special materials such as duplex, Hastelloy and titanium — special nominal diameters up to DN 1000 — special actuators for ATEX Zone 1. We develop your bespoke ball valve solution.

Special Materials

Duplex 1.4462, Hastelloy C-276, Titan Gr.2, Inconel 625

Special diameters

DN8 to DN1000+ — all flange standards: DIN, ANSI, JIS

ATEX Drives

Zones 1 & 2 — electric (24V to 240V), pneumatic

Complete documentation

Material Certificate 3.1 / 3.2, Pressure Test, SIL Certification