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
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
Your List
Related Products
JSHM Series
Manual control, low to medium flow, Jorlon diaphragm
Mark 978JD Series
Medium to high flow, Jorlon diaphragm
Mark 16IQ Series
Side Mounted I/P
Get Help Sizing Your Valve
Quickly and accurately determine the flow coefficient of a valve so that you can choose the proper Steriflow valve for your application.