bettatail
Community Member
Precision Metering valve, needle valve and flow control/controller
Put out the info here, for you to find a good mechanical/manual flow control valve, and build your own CO2 system.
This is a new info thread, the old thread started in 2011, I have stopped adding info since 2014, six year passed.
The old metering valve selection thread
--there is info about some industrial extremely low flow flowmeters which not only monitor steady co2 flow rate as bubble counter, but also calculate accurate co2 flow rate. These flowmeters often can be found with high precision flow control valves attached. Check Brooks, Aalborg, and Matheson valves below.
Pneumadyne (Pneumatic Control System), made in UK
[STRIKE]700 series needle valve[/STRIKE], Part number: C070301/C070501/C070601,
Orifice: N/A
Cv: 0.09 (at 12 turn full open)
This valve is not a precision control valve.
Clippard
MNV-3/4 series needle valve, part number MNV-3* , MNV-4*
Orifice: 0.07"(MNV-3), 0.067"(MNV-4)
Cv: N/A (at 4 turn SCFM is 1, Cv is under 0.03 before 4 turns, after 4 turns, Cv spike)
This valve is not a precision control valve.
SMC
AS1000 Series needle valve, Part number AS120?-*
Orifice: N/A
Cv: N/A
This valve is not a precision control valve.
Ideal valve
52(brass)/54(stainless steel)--1 series, Part number 52-1-*, 54-1-*
Orifice: 0.0313"
Cv: 0.019 (at 20 turn, 22-24 turn full open, approximate Cv 0.008 -0.009 at 10 turn)
52(brass)/54(stainless steel)--2 series, Part number 52-2-*, 54-2-*
Orifice: 0.0625"
Cv: 0.082 (at 20 turn, 22-24 turn full open)
Fabco-air
NV55/FC55 needle valve, Part number NV-55, NV-55-18, FC-55
Orifice: N/A
Cv: N/A
Swagelok precision metering valve,
S series high precision metering valve, Part number SS(B)-SS* , SS(B)-SM*
Orifice: 0.032"
Cv: 0.004 (at 10 turn full open)
double pattern, dual handles
Cv: 0.001 ( at 10 turn full open)
M series metering valve, Part number SS(B)-?MG*, SS(B)-?MA*
Orifice: 0.056"
Cv: 0.03 (at 9 turn full open)
double pattern, dual handle
Cv: 0.026 ( at 9 turn full open)
21/22 series metering valve, Part number: *-21???-*, *-22???-*,
Orifice: 0.02"
Cv: 0.007 (at 8 turn full open)
[STRIKE]Swagelok O series needle valve, soft seat stem. Part number SS(B)-OR*[/STRIKE]
Orifice: 0.08"
Cv: 0.09 (at 8 turn full open)
Parker Hannifin
(Bronkhorst)HR series high precision metering valve, there are 7 models, mark number from 0 to 6.
Stem type 0, Part number: *-H0?-*-*-*
Orifice:N/A
Cv: 0.0004 (at 15 turn full open)
Stem type 1, Part number: *-H1?-*-*-*
Orifice:N/A
Cv: 0.007 (at 15 turn full open)
Stem type 2, Part number: *-H2?-*-*-*
Orifice:N/A
Cv: 0.014 (at 15 turn full open)
Stem type 3, Part number: *-H3?-*-*-*
Orifice:N/A
Cv: 0.021 (at 15 turn full open)
Stem type 4, Part number: *-H4?-*-*-*
Orifice:N/A
Cv: 0.032 (at 15 turn full open)
Stem type 5, Part number: *-H5?-*-*-*
Orifice:N/A
Cv: 0.049 (at 15 turn full open)
Parker NS and NM series metering valve
NS series, Part number *-NS?-*-*-*
Orifice: N/A
Cv: 0.042 (at 14 turn full open)
NM series, Part number *-NM?-*-*-*-*
Orifice: N/A
Cv: 0.055 (at 14 turn full open)
Hoke
Micromite 1600 series metering valve.
Orifice: 0.031"
Cv: 0.0008 (at 18 turn full open)
Millimite 1300 series metering vale, 1 degree angle stem.
Orifice: 0.047"
Cv: 0.011 ( at 18 turn full open)
Millimite 1300 series metering vale, 3 degree angle stem.
Orifice: 0.047"
Cv: 0.024 ( at 18 turn full open)
[STRIKE]Hoke 2300 series metering valve[/STRIKE], 1 degree angle stem
Orifice: 0.062"
Cv: 0.01 (at 20 turn full open )
Brooks instrument
Low flow NRS needle control valve, Model 8503, 8504, 8513, 8514.
8503, angle pattern, normal handle
8504, straight(inline) pattern, normal handle
8513, angle pattern, digital handle
8514, straight(inline) pattern, digital handle
stem type Cv.
type 6, CV: 0.052
type 5, CV: 0.017
type 4, CV: 0.0057
type 3, CV: 0.0013
type 2, CV: 0.00066
type 1, CV: 0.00029
These valves are also found on Brooks Sho-rate and OMEGA flowmeters.
Brooks Sho-rate 1350/1355 flowmeter low flow glass tube model number:
R-2-65-A, R-2-65-B (1350)
R-2-15-AAA, R-2-15-D (1355)
Flowmeter scale/air to co2 flow rate conversion charts are available on official website.
--Brooks pressure flow control valves model 8744, 8944, 8844 and some others, are combined with NRS valves as well.
Aalborg/Dakota High precision metering needle valve
there are 6 models of this valve, model 1, 2, 3 are ok for low flow control.
These valves are often found on aalborg/cole palmer 150mm and 65mm flowmeters.
Glass tube models for low flow: 032 tube, 042 tube, some 052 tube.
Flowmeter scale/air to co2 flow rate conversion charts are available on official website.
Matheson
4170 precision metering valve, High Accuracy
There are 6 models, model 1, 2, 3 are ok for low flow control.
These valves are often found on matheson flowmeters.
FM1050 flowmeter, low flow glass tube models number: 610A, 600(E100), 601(E200).
Flowmeter scale/air to co2 flow rate conversion charts are available on official website.
Bellow are some more other good valves, rare or exotic.
Ham-Let metering valve
HXF1300 series metering valve, 1 degree stem angle, Part number HXF13??-*-*
Orifice: 0.03"
Cv: 0.004 (at 11 turn full open)
HF1300 series metering valve, 3 degree stem angle, Part number HF13??-*-*
Orifice: 0.055"
Cv: 0.03 (at 11 turn full open)
Fujikin metering valve , made in Japan
PUN series metering valve, made in Japan
Orifice: N/AMM
Cv: 0.004 (at 10 turn full open)
UN/DUN series
Orifice: 1.5MM
Cv: 0.015 (at 14 turn full open)
UN series metering valve, L mark on top of the vernier handle, made in Japan
Orifice: 1.8MM
Cv: 0.03 (at 14 turn full open)
Porter(parker)
VCD-1000 pressure flow controller
(hewlett packard HP19362)
Kofloc/kojima precision needle valve,
2412 series, 2203/2204 pressure flow controller
Vogtlin High Precision flow control valve,
M-flow micro flow valve, Made in Germany
Witt Gas,
high precision metering valve.
Chell Ultra-Fine Mechanism Needle Valve, Made in UK
Also name Negretti, or Meggitt
Vacoa/Vici/condyne valve
Please let me know if you see any other metering valves that not here and can be used in our DIY CO2 pressurized system.
Put out the info here, for you to find a good mechanical/manual flow control valve, and build your own CO2 system.
This is a new info thread, the old thread started in 2011, I have stopped adding info since 2014, six year passed.
The old metering valve selection thread
--there is info about some industrial extremely low flow flowmeters which not only monitor steady co2 flow rate as bubble counter, but also calculate accurate co2 flow rate. These flowmeters often can be found with high precision flow control valves attached. Check Brooks, Aalborg, and Matheson valves below.
Pneumadyne (Pneumatic Control System), made in UK
[STRIKE]700 series needle valve[/STRIKE], Part number: C070301/C070501/C070601,
Orifice: N/A
Cv: 0.09 (at 12 turn full open)
This valve is not a precision control valve.
Clippard
MNV-3/4 series needle valve, part number MNV-3* , MNV-4*
Orifice: 0.07"(MNV-3), 0.067"(MNV-4)
Cv: N/A (at 4 turn SCFM is 1, Cv is under 0.03 before 4 turns, after 4 turns, Cv spike)
This valve is not a precision control valve.
SMC
AS1000 Series needle valve, Part number AS120?-*
Orifice: N/A
Cv: N/A
This valve is not a precision control valve.
Ideal valve
52(brass)/54(stainless steel)--1 series, Part number 52-1-*, 54-1-*
Orifice: 0.0313"
Cv: 0.019 (at 20 turn, 22-24 turn full open, approximate Cv 0.008 -0.009 at 10 turn)
52(brass)/54(stainless steel)--2 series, Part number 52-2-*, 54-2-*
Orifice: 0.0625"
Cv: 0.082 (at 20 turn, 22-24 turn full open)
Fabco-air
NV55/FC55 needle valve, Part number NV-55, NV-55-18, FC-55
Orifice: N/A
Cv: N/A
Swagelok precision metering valve,
S series high precision metering valve, Part number SS(B)-SS* , SS(B)-SM*
Orifice: 0.032"
Cv: 0.004 (at 10 turn full open)
double pattern, dual handles
Cv: 0.001 ( at 10 turn full open)
M series metering valve, Part number SS(B)-?MG*, SS(B)-?MA*
Orifice: 0.056"
Cv: 0.03 (at 9 turn full open)
double pattern, dual handle
Cv: 0.026 ( at 9 turn full open)
21/22 series metering valve, Part number: *-21???-*, *-22???-*,
Orifice: 0.02"
Cv: 0.007 (at 8 turn full open)
[STRIKE]Swagelok O series needle valve, soft seat stem. Part number SS(B)-OR*[/STRIKE]
Orifice: 0.08"
Cv: 0.09 (at 8 turn full open)
Parker Hannifin
(Bronkhorst)HR series high precision metering valve, there are 7 models, mark number from 0 to 6.
Stem type 0, Part number: *-H0?-*-*-*
Orifice:N/A
Cv: 0.0004 (at 15 turn full open)
Stem type 1, Part number: *-H1?-*-*-*
Orifice:N/A
Cv: 0.007 (at 15 turn full open)
Stem type 2, Part number: *-H2?-*-*-*
Orifice:N/A
Cv: 0.014 (at 15 turn full open)
Stem type 3, Part number: *-H3?-*-*-*
Orifice:N/A
Cv: 0.021 (at 15 turn full open)
Stem type 4, Part number: *-H4?-*-*-*
Orifice:N/A
Cv: 0.032 (at 15 turn full open)
Stem type 5, Part number: *-H5?-*-*-*
Orifice:N/A
Cv: 0.049 (at 15 turn full open)
Parker NS and NM series metering valve
NS series, Part number *-NS?-*-*-*
Orifice: N/A
Cv: 0.042 (at 14 turn full open)
NM series, Part number *-NM?-*-*-*-*
Orifice: N/A
Cv: 0.055 (at 14 turn full open)
Hoke
Micromite 1600 series metering valve.
Orifice: 0.031"
Cv: 0.0008 (at 18 turn full open)
Millimite 1300 series metering vale, 1 degree angle stem.
Orifice: 0.047"
Cv: 0.011 ( at 18 turn full open)
Millimite 1300 series metering vale, 3 degree angle stem.
Orifice: 0.047"
Cv: 0.024 ( at 18 turn full open)
[STRIKE]Hoke 2300 series metering valve[/STRIKE], 1 degree angle stem
Orifice: 0.062"
Cv: 0.01 (at 20 turn full open )
Brooks instrument
Low flow NRS needle control valve, Model 8503, 8504, 8513, 8514.
8503, angle pattern, normal handle
8504, straight(inline) pattern, normal handle
8513, angle pattern, digital handle
8514, straight(inline) pattern, digital handle
stem type Cv.
type 6, CV: 0.052
type 5, CV: 0.017
type 4, CV: 0.0057
type 3, CV: 0.0013
type 2, CV: 0.00066
type 1, CV: 0.00029
These valves are also found on Brooks Sho-rate and OMEGA flowmeters.
Brooks Sho-rate 1350/1355 flowmeter low flow glass tube model number:
R-2-65-A, R-2-65-B (1350)
R-2-15-AAA, R-2-15-D (1355)
Flowmeter scale/air to co2 flow rate conversion charts are available on official website.
--Brooks pressure flow control valves model 8744, 8944, 8844 and some others, are combined with NRS valves as well.
Aalborg/Dakota High precision metering needle valve
there are 6 models of this valve, model 1, 2, 3 are ok for low flow control.
These valves are often found on aalborg/cole palmer 150mm and 65mm flowmeters.
Glass tube models for low flow: 032 tube, 042 tube, some 052 tube.
Flowmeter scale/air to co2 flow rate conversion charts are available on official website.
Matheson
4170 precision metering valve, High Accuracy
There are 6 models, model 1, 2, 3 are ok for low flow control.
These valves are often found on matheson flowmeters.
FM1050 flowmeter, low flow glass tube models number: 610A, 600(E100), 601(E200).
Flowmeter scale/air to co2 flow rate conversion charts are available on official website.
Bellow are some more other good valves, rare or exotic.
Ham-Let metering valve
HXF1300 series metering valve, 1 degree stem angle, Part number HXF13??-*-*
Orifice: 0.03"
Cv: 0.004 (at 11 turn full open)
HF1300 series metering valve, 3 degree stem angle, Part number HF13??-*-*
Orifice: 0.055"
Cv: 0.03 (at 11 turn full open)
Fujikin metering valve , made in Japan
PUN series metering valve, made in Japan
Orifice: N/AMM
Cv: 0.004 (at 10 turn full open)
UN/DUN series
Orifice: 1.5MM
Cv: 0.015 (at 14 turn full open)
UN series metering valve, L mark on top of the vernier handle, made in Japan
Orifice: 1.8MM
Cv: 0.03 (at 14 turn full open)
Porter(parker)
VCD-1000 pressure flow controller
(hewlett packard HP19362)
Kofloc/kojima precision needle valve,
2412 series, 2203/2204 pressure flow controller
Vogtlin High Precision flow control valve,
M-flow micro flow valve, Made in Germany
Witt Gas,
high precision metering valve.
Chell Ultra-Fine Mechanism Needle Valve, Made in UK
Also name Negretti, or Meggitt
Vacoa/Vici/condyne valve
Please let me know if you see any other metering valves that not here and can be used in our DIY CO2 pressurized system.
