Diaphragm valve - T85 | Zubi | Philippopoulos s.a.
Diaphragm valve - T85 | Zubi | Philippopoulos s.a.
Diaphragm valve - T85 | Zubi | Philippopoulos s.a.
Diaphragm valve - T85 | Zubi | Philippopoulos s.a.

Diaphragm valve - T85 | Zubi

Diaphragm Valve Zubi T85

The Zubi T85 is a flanged, straight-through, bidirectional, full bore diaphragm valve with a cast monoblock body and bolted bonnet. It is primarily used for flow isolation in liquids, slurries, and industrial media containing solids, where the straight-through design minimizes retention zones and pressure drop. Available with or without internal lining, depending on the medium and corrosiveness.

Technical Specifications

  • Connections: PN6, PN10, PN16, PN25, PN40, ANSI 125/150, BS, JIS 5K/10K, AS-2129 D/E.
  • Face-to-face: EN 558 Series 1 / DIN 3202 and EN 558 Series 7 / BS 5156.
  • Manual version sizes: DN15–DN300.
  • Manual version pressure: DN15–DN50 at 10 bar, DN65–DN125 at 6 bar, DN150–DN300 at 4 bar.
  • Sealing: watertight shut-off.
  • Compliance: Machinery Directive 2006/42/CE, PED 2014/68/EU, ATEX 2014/34/EU Area 2 & 22.

Materials and Diaphragms

Bodies: GG25, GGG50, A216 WCB, CF8, CF8M, CF3M, CN7M, bronze RG7, 254SMO, 654SMO, Duplex SAF2205, Superduplex SAF2507, AISI310, AISI904, and AISI316Ti. Linings: hard rubber/ebonite, antiabrasive natural rubber, neoprene, butyl, NBR, Hypalon, Halar/ECTFE, and Rilsan. Diaphragms: Butyl, reinforced Butyl, Natural Rubber, EPDM, Hypalon, Neoprene, Nitrile, Silicone, and Viton.

Applications

Suitable for:

  • water and wastewater treatment,
  • pulp and paper industry,
  • chemical circuits with compatible lining,
  • mining and abrasive slurries,
  • power generation and auxiliary networks.

Handling and Maintenance

Available with handwheel, pneumatic actuator (air-open, air-close, or double acting), electric actuator, and gearbox. Automation options: position indicators, limit switches, solenoid valves, padlock, and positioner 4–20 mA. The body–diaphragm–actuator arrangement allows diaphragm replacement or actuator upgrade without removing the body from the line.

Difference from T85/99

The T85 is flanged and can be supplied with body lining. The T85/99 is threaded BSP/NPT, DN20–DN65, without available rubber lining, thus not selected for abrasive or corrosive media.

Standard (Options)
  • DIN
  • ANSI
  • JIS
Connection (Options)
  • Flanged
Material (Options)
  • EN-GJL-250
Pressure Rating (Options)
  • PN 6
  • PN 10
  • PN 16
  • PN 25
  • PN 40

Description

Main Features

  • Monoblock body, one piece cast. Full bore.
  • 100% tightness performance guaranteed.
  • The valve can be installed in any position.
  • High strength woven Diaphragm reinforced design.
  • Bolted bonnet design.
  • Internal rubber lined and unlined options.
  • Easy maintenance: Three part design (Body, diaphragm and actuator) allows maintenance and actuator retrofitting without removing the valve body from the pipeline.
  • Bidirectional shut off design.

DIRECTIVAS

  • DIR 2006/42/CE (machinery)
  • DIR 2014/68/EU (PED) Fluid Group 1(b), 2 (Cat. I. mod. A)
  • DIR 2014/34/EU (ATEX) Area 2&22

Technical Data

FLANGE CONNECTION

  • PN6/PN10/PN16/PN25/PN40
  • ANSI125/150
  • BST E / BST D
  • JIS 5K JIS10K
  • AS-2129-D/E

Face to face as per EN558 serie 1 DIN-3202 and EN558 serie 7 BS-5156.

SIZES & PRESSURES

  • Manual valves:
  • DN15 to DN50: 10 bar
  • DN65 to DN125: 6 bar
  • DN150 to DN300: 4 bar

For actuated valves, please refer to the appropriate datasheets.

TIGHTNESS

  • Watertight

MATERIALS

BODY GG25, GGG50, A216 WCB, CF8 (AISI304), CF8M (AISI316), CF3M (AISI316L), CN7M (CARPENTER20), RG7 (BRONZE), 254SMO, 654SMO, AISI310, AISI904, DUPLEX SAF2205, SUPERDUPLEX SAF2507, AISI316Ti.

LINING HARD RUBBER/EBONITE, ANTIABRASIVE NATURAL RUBBER, NEOPRENE, BUTYL, NITRILE (NBR), HYPALON, HALAR (ECTFE), RILSAN (POLIAMIDE).

DIAPHRAGM 

  • Butyl (BU) Blue
  • Aliment butyl (BUA)
  • Reinforced butyl (BUR)
  • Natural rubber (BL) White
  • Natural aliment rubber (BLA)
  • EPDM (EP)
  • Hypalon (HY) Green
  • Neoprene (NE) Red
  • Nitrile (NI) Yellow
  • Silicone (SI)
  • Viton (VI) Orange

*The abbreviations or the identification colours are in the flap of the diaphragm. *The pneumatic actuator diaphragm made in Natural rubber (BL).

BONNET GG25 Others on request.

ACTUATORS

Manual, air open actuator, air to close actuator, double acting actuator, electric, gear box.

ACCESSORIES AND OPTIONS

Position indicators, switches, solenoid valves, padlocks, mechanical limit switches, positioner 4/20mA.