Miniature Diaphragm Regulators RDCC Series

RDCC Series

Introduction Miniature Diaphragm Regulators RDCC Series

Miniature Diaphragm Regulators RDCC Series feature a single-stage pressure reduction design with a combination of metal diaphragm and free poppet. This configuration ensures excellent sensitivity and stable outlet pressure. With their compact form, these regulators are ideal for low flow, ultra-high purity applications.

Features Diaphragm Miniature Diaphragm Regulators RDCC Series

Lift poppet and diaphragm are made of Ni-Cr-Mo Alloy (UNS N06022), offering excellent corrosion resistance
Metal-to-metal seal between valve body and diaphragm provides ensured sealing performance
FR metal gasket face seal, W-seal, and C-seal connections optional
Reinforced diaphragm design extends diaphragm service life
No threads are exposed to the wetted area for easy purging


Port Size	1/4″, 1.125″ W-seal, 1.125″ W-seal
Max. Working Pressure	150 psig (10.3 bar)
Outlet Pressure Range	0 ~ 30 psig (0 ~ 2.1 bar)
	0 ~ 60 psig (0 ~ 4.2 bar)
	0 ~ 100 psig (0 ~ 6.9 bar)
Flow Coefficient (Cv)	0.08
Working Temperature	-40 ~ 160 °F (-40 ~ 71 °C)
SPE (Supply Pressure Effect)	1.5 psig per 100 psig source pressure change

Flow Data

Process Specification

Process Specification	Special Cleaning and Packaging Process (FC-02)	Ultra High Purity Process (FC-03)
Material	316L SS	316L SS, 316L VAR
Wetted Surface Roughness	Ra 10 μin. (0.25 μm)	Ra 5 μin. (0.13 μm)
Polishing Process	Machine Finished	Electropolished
Assembly Environment	In specially cleaned areas	ISO Class 4 (FS 209E Class 10 equivalent) cleanroom
Packaging	Double bagged	Double bagged in cleanroom

Major Materials of Construction

Item	Component	Material/Specification
1	Handle	Aluminum
2	Bonnet	316 SS/ASTM A479
3	Seat	PCTFE/ASTM D1430 or PTFE/ASTM D1710
4	Lift Poppet	Alloy C-22/ASTM B574
5	Body	316L SS/316L SS VAR

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