NRD Diaphragm Valves

Kitz SCT NRD series product.

NRD Diaphragm Valves

The NRD series expands upon the high-pressure RD series with a more compact and slim actuator while maintaining the same performance at 3000psig as the standard RD.

Product Details

Specifications
SeriesNRD4
Maximum Operating Pressure (Positive Pressure / Back Pressure)20.6MPa(G)
Cv *10.1
Wetted Area Volume (CVC Male Connection) *31.10cm3
Fluid TemperaturePCTFE-10 ~ 42℃
PI-10 ~ 150℃ *4
PVDF *2-10 ~ 42℃
Atmospheric TemeraturePCTFE-10 ~ 40℃
PI-10 ~ 60℃
PVDF *2-10 ~ 42℃
Leak RatesAcross the Seat He Leak Test Rate≦ 1X10‐10Pa・m3/sec
Inboard Leak Test Rate≦ 1X10‐10Pa・m3/sec
Operation Pressure (Pneumatic Valve Only)0.4~0.6MPa(G)
Cycle Life (N2 Charged, Own Test)Manual Valve30,000 cycle
90°Manual Valve20,000 cycle
Pneumatic Valve100,000 cycle
*1 The minimum Cv value measured based on SEMASPEC-90120394B-STD (room temperature) is described.
*2 For the PVDF seat, only the NRD and NRCD series of pneumatic and manual valves can be selected. Other series are not compatible.
*3 For the NRMD8 series, the internal volume of a CVC female connection is applied.
*4 Where sleeve joints of 3/8” or more and pipe fittings are used, the upper limit of the fluid temperature range is 96ºC.
Product Grade
GradeSTDEPSEP
Body Material
SUS316LSUS316LE (Double melt material)
Surface Roughness≦ Rz 3.2μm≦ Rz 0.7μm
PolishMechanical PolishedElectro Polished
CleaningDegreasing + Precision cleaning
PackagingSingle PackageDouble Package
PRODUCT CODE KEY
Model + Size
Operation
Valve Shape
Pressure
Connection
Fitting Size
Seat Material
Flow
Handle Color Optional
Grade + Body Material
NRD4
M
S
I
-
V
8
C
-
A
-
_
-
EP-316L
NRD4: 1/4" Cv 0.1 Standard Body
C: N.C.
M: 270° Manual Valve
Q: 90° Manual Valve
S: Straight
A: Angle
L: L-Shape
B: Branch
I: 20.6MPa
V: CVC male
VF: CVC female
W: Butt weld
S: Compression
*1
Not shown: 1/4" (Standard)
6: 3/8"
8: 1/2"
C: PCTFE
P: PI
D: PVDF
*2
Not shown: Standard
A: A flow
B: B flow
C: C flow
Not shown: Blue (standard)
RD: Red
GR: Green
SL: Silver
BK: Black
YE: Yellow
BR: Brown
WH: White
STD-316L: Mechanical Polished + SUS316L
EP-316L: Electro Polished + SUS316L
SEP-316LE: Electro Polished + SUS316LE

*1 In cases where there are different types of fittings, please note them in the order of Port A, B, and C of the internal flow in the diagram to the right.
Example: In the case where A port = CVC 1/2" male, B port = CVC 1/4" male, C port = CVC 1/2" female, the model will be "NRHD4CBI-V8VVF8C-A-EP-316L".
*2 PVDF seat is available for NRCD4 and NRD4.