User Manual
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JSR SeRieS HigH PuRity Bio-PHaRma gaS PReSSuRe Reducing ValVe
speciFications
Sizes: 1/2" (DN15) & 3/4" (DN20)
Ends: Clamp, Weld-stub or NPT ends
Soft Seat Materials for ANSI Class VI Shut-Off:
• PTFE to +252°F (122°C) continuous or 275°F (135°C)
intermittent [not to exceed 15 min. in a one hour
period] FDA, USP Class VI
• PEEK to +350°F (176,7°C) FDA, USP Class VI
• EPDM to +300°F (150°C) FDA, USP Class VI
Body Material: 316L SST
Diaphragm Material: PTFE-based Jorlon FDA, USP
Class VI
Maximum Inlet Pressure: 150 psig (10,5 bar)
Spring Ranges: 5–70 psi (0,3–4,8 bar); 50–125 psi
(3,4–8,6 bar)
Flow Characteristics:
• High Flow: Trim Cv 0.8; Cv for relief valve
sizing is 1.9
• Low Flow: Trim Cv 0.5; Cv for relief valve
sizing is 0.6
Surface Finish: Mechanically polished to 20 Ra µ
in (0.5 µm), and electropolished as standard. Other
nishes available upon request
Options:
• Panel Mounting
• Captured Vent
• Self Relieving
options
Panel Mount Option Captured Vent Option (1/8" NPT)
option DeFinition
Captured Vent
The captured vent design is for maximum safety for the user when handling toxic or hazardous media. It
features a 1/8" FNPT port located on the spring housing. The user can easily tube this vent to a safe loca-
tion. This option can be incorporated into a self-relieving regulator that provides an additional port to permit
the safe expulsion of hazardous media.
Panel Mount
The panel mount feature requires a panel cut out of 1-1/2", complete with a threaded spring housing, and a
panel mount ring to secure the regulator.
*Self Relieving
The self relieving option is used for internal venting of downstream pressure. From a practical standpoint, it
allows for immediate reduction in pressure setpoints and automatically alleviates regulator lock up.
(Recommended with outlet gauges)