liquitec

steri-pure®

Diaphragm Valves MVS, MTS, MBS

Diaphragm valves for sterile process lines and vessels: as MVS 2-way valve, MTS T-valve and MBS bottom outlet valve, each with manual or pneumatic actuator. Five actuator sizes cover the nominal sizes DIN06 to DIN50, ISO06 to ISO50 and OD ¼" to OD 2½".

10bar operating pressure
160°C with EPDM/PTFE diaphragm, short-term 200 °C
5actuator sizes for DIN06 to DIN50
Ra < 0.6µm, product contact electropolished

Overview

Three body types. One actuator system.

The diaphragm valve separates the medium from the actuator: the diaphragm closes against the weir in the valve body, no moving part of the actuator comes into contact with the product. Manual and pneumatic actuators fit all three body types of the same size.

  • For gases and liquids
  • Valve body forged (standard), investment cast, machined from solid or welded
  • Product contact 1.4435 BN2 (316L), special materials on request
  • Connections weld end, clamp DIN32676 or aseptic DIN11864, selectable for each side
  • Diaphragm EPDM or EPDM/PTFE foil-clad
  • Pneumatic actuator normally closed, normally open or double acting
  • Product-contact surfaces electropolished, Ra < 0.6 µm as standard
  • Options: stroke limitation, feedback unit M8 with one or two proximity switches
  • Product-contact parts marked with article number, material and heat number

Versions

Straight, T, bottom. By hand or with air.

All three body types are available with manual and with pneumatic actuator. The ordering key includes further bodies with outlet or outlet valve as well as Y-bodies.

MVS 2-way valve

  • Through valve body
  • Overall length 75 to 154 mm
  • Ferrule length 19 mm
  • Manual or pneumatic actuator

MTS T-valve

  • T-valve body
  • Outlet selectable in nominal size and connection like the main line
  • Ferrule length 19 mm
  • Manual or pneumatic actuator

MBS bottom outlet valve

  • Bottom outlet valve body for the vessel bottom
  • Manual or pneumatic actuator
  • Also with clamp connection to the vessel, pneumatic

Sizes MVS

Five actuators. Three pipe standards.

Assignment of nominal sizes to actuator sizes, with overall length and height of the MVS 2-way valve with weld ends. Pneumatic height for the normally closed version.

ActuatorDINISOODLengthmmHeight manualmmHeight pneumaticmm
1DIN06, DIN08ISO06OD ¼", OD ⅜"7562.684.6
2DIN10ISO08, ISO10OD ½"8881.7109
3DIN15, DIN20ISO15, ISO20OD ¾", OD 1"108108.2143.4
4DIN25, DIN32ISO25–134144197
4DIN40ISO32OD 1½"134160213
5DIN50ISO40, ISO50OD 2", OD 2½"154195252.3

Technical data

Materials, diaphragms, temperatures.

Nominal sizes
DIN06–DIN50, ISO06–ISO50, OD ¼"–OD 2½"
Pipe standards
DIN11866 series A (DIN), series B (ISO), series C (OD)
Connections
Weld end; clamp ferrule DIN32676; aseptic acc. DIN11864-1 (thread or female ferrule), DIN11864-2 (female or male flange), DIN11864-3 (female or male clamp ferrule)
Product contact
1.4435 BN2 (316L); 1.4539 and 1.4571 acc. ordering key; others such as 2.4602 or titanium on request
Non product contact
1.4305 or equivalent
Valve body manufacture
Forged (standard), investment cast, machined from solid, welded design
Surface product contact
Ground, polished and electropolished, Ra < 0.6 µm (standard); Ra 0.2, 0.4 or 0.8 µm selectable; others on request
Diaphragm
EPDM (standard) or EPDM/PTFE foil-clad; special materials on request
Operating temperature diaphragm
EPDM −40 to +140 °C, short-term up to +150 °C; EPDM/PTFE foil-clad −20 to +160 °C, short-term up to +200 °C
Operating pressure
10 bar
Media
Gases and liquids
Actuator
Manual or pneumatic actuator in five sizes; pneumatic normally closed, normally open or double acting
Traceability
Product-contact parts marked with article number, material and heat number
Certificates
EN10204 3.1 for product-contact parts (standard); on request certification of surface roughness, delta ferrite content and FDA compliance of the diaphragm
Diaphragm compliance
FDA conform, USP Class VI, TSE-free

Ordering key

One key. Every combination.

Ordering example: MVS000.ISO.10S.10S.35S.E2.06.0.PA.NC — 2-way valve, ISO10, weld ends on both sides, 1.4435 (316L) forged, electropolished Ra 0.6 µm, EPDM diaphragm, pneumatic actuator normally closed.

Body and connection

  • 1 Valve body: MVS, MTS, MBS and others
  • 1.1 Type: 000 standard, 999 special length
  • 2 Standard: DIN, ISO, OD
  • 3 and 4 Nominal size left and right
  • 3.1 and 4.1 Connection left and right
  • 5 Outlet of the T-valve

Material and surface

  • 6 Material: 35 = 1.4435 (316L), 39 = 1.4539, 71 = 1.4571
  • 6.1 Manufacture: S forged, G investment cast, V solid, W welded
  • 7 Treatment: E1 polished, E2 polished and electropolished
  • 7.1 Surface: 02, 04, 06, 08 for Ra 0.2 to 0.8 µm
  • 8 Diaphragm: 0 EPDM, 7 PTFE/EPDM

Actuator and accessories

  • 9 Actuator: HA manual, PA pneumatic
  • 9.1 Function: NC, NO, LL double acting
  • 10 Stroke limitation: H1 open, H2 closed, H3 open and closed
  • Feedback unit M8 with one or two proximity switches
  • Key adaptor, torque wrench 10–50 Nm and 40–200 Nm, square drive head and extension

Contact

Enquiry

Tell us the valve body, pipe standard, nominal size and connection for each side, material, surface, diaphragm and actuator — for the pneumatic actuator also the function. We will put together the ordering key.

Prefer to write directly?

+41 55 450 83 00 sales@liquitec.ch