Fully Automated, Low to High Flow, Normally Open, Jorlon Diaphragm

Air loaded sanitary back pressure reducing valve designed to allow the user to change setpoints remotely via a cabinet or panel  mounted air regulator or though a distributed control system or PLC using a I-P transducer.  Unique among its peers, the Mark 95A is normally open with the air supply is removed, allowing process or sanitization fluids to drain.

Features & Benefits
  • Normally open when air supply is removed
  • Compact design significantly reduces the installation space and weight if mounting the valve on a process skid
  • Permits full automation of Process, Rinse, CIP and SIP setpoints
  • Valve body and trim is the same as the time-tested MK95 design
  • Optimized diaphragm material, surface area and support system for unsurpassed performance and life
  • Accessory I/P or air regulator available for automated and/or remote set point control
  • Size: 1/2″, 3/4″, 1″, 1-1/2″, 2″ (DN15, DN20, DN25, DN40, DN50)
  • End Connections: ASME, Tri-Clamp, butt weld, others upon request
  • Cv & Flow Characteristic: 0.5 – 19 Cv (0,4 – 16,3 Kv)
  • Setpoint Range: 1/2″ – 1″: 3 – 105; 1-1/2″: 3 – 85; 2″ 5 – 60
  • Wetted Material: ASME SA479 316L (UNS 31603) is standard. EN 10272:2000 GR 1.4435, AL-6XN®, Hastelloy C-22 and others are optional
  • Surface Finish: ASME BPE SF5, 20Ra (0,5µm) electropolish is standard, 8Ra (0,2µm) optional
  •  Diaphragm Material : Jorlon USP Class VI
  • Soft Seat Option: All materials FDA, USP Class VI; Teflon, PEEK, Jorlon

Jorlon Diaphragm Video

How do you minimize valve diaphragm failures? Watch this quick video to learn about the Jorlon diaphragm.

Jorlon Diaphragm InfoGraphic

Save money, extend preventive maintenance diaphragm change-out times, and realize the benefits of a valve that outlasts most normal systems.

Jorlon Facts and Warranty

The majority of Steriflow valves come with the Jorlon diaphragm and, of course, a lifetime diaphragm warranty.


CRN (Canadian Registration Number)

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Mark 96A Series

Hybrid or Automated, Jorlon Diaphragm

Mark 95 Series

Manual, Low to High Flow, Jorlon Diaphragm

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