Mark 978LF-JD Series
Low flow, Jorlon diaphragm
Angle style control valve for continuous precision low flow control of media, process, purified water and clean utilities in the biopharmaceutical, pharmaceutical, food & beverage and consumer health & beauty industries:
- Small bioreactor/fermenter process input control: growth media, WFI, process sparge and blanket gas
- Separation input and output control: WFI, process, product & waste streams
- Small vessel formulation/fill control: WFI and other vessel inputs, blanket gas, dosing pressure
- Purification input and output control: Elution media, solvents, buffer, WFI
- Clean utilities: USP PW (purified water), WFI, pure steam, CIP, clean compressed air and gas
- F & B and Consumer H & B Process: inputs, outputs, purified water and clean utilities
- The smallest nominal flow offering in the industry. Six Cv’s between 0.005 and 0.1 enables you to control flow for any application
- Maintenance friendly – quick change trim simplifies disassembly, reassembly, and steam-in-place/clean-in-place capabilities
- Mechanically and electropolished internal components – 20Ra (0,5µm) finish; others upon request
- FDA and USP Class VI conformity on all process seal materials
- Gravity draining/no holdup and a variety of installation orientations
- Size: 1/2″ & 3/4″ (DN15 & DN20)
- End Connections: ASME, DIN and ISO tri-clamp, extended tube weld
- Cv (Kv) & Flow Characteristic: 0.005 – 0.1 (0,0034 – 0,086) linear or equal percentage trim
- Max Pressure: 200 psi (13,8 bar) temperature dependent on o-ring construction
- 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
- Stem Seal – o-ring: various – all certified to FDA/USP Class VI
- Soft Seat Option (CV ≥3.5 only): PTFE FDA/USP Class VI; PEEK FDA/USP Class VI
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)
- PED Category 1 (Pressure Equipment Directive)
- SEP Declaration (Sound Engineering Practice)
- EC Declaration of Conformity
- All products use FDA and USP Class VI approved soft goods and seals where possible. Consult each product data for details
1/2″ Mark 978LF Series, Jorlon Diaphragm, 14M & 16IP Side Positioner
1/2″ Mark 978LF Series, Jorlon Diaphragm, 14M & MK16IQ Side Positioner
1/2″ Mark 978LF Series, Jorlon Diaphragm, 14M & 16PP Side Positioner
3/4″ Mark 978LF Series, Jorlon Diaphragm, 14M & 16IP Side Positioner
3/4″ Mark 978LF Series, Jorlon Diaphragm, 14M & 16IQ Side Positioner
3/4″ Mark 978LF Series, Jorlon Diaphragm, 14M & 16PP Side Positioner
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