Accuracy is more affordable than ever.
Axis is your best fit.
Single Chamber Orifice Fitting Features & Benefits
- 100% quality testing ensures measurement accuracy and leak prevention.
- Hydrostatic testing for shell strength and slide valve sealing prevents leaks.
- Extensive dimensional measurements are taken throughout the manufacturing process.
- 35+ years of parts production goes behind each component in the fitting.
- All trim materials are chosen to meet the latest NACE standards.
Available Models
At Axis Measurement, we carry a range of single-chamber fittings to meet your measurement needs. Get more information about each product below, and download product specifications for all the technical details.
AX
AX
AX
AX
AX
AX
AX
BV: Ball Valve
BVSW: Ball Valve Seal Welded
DC: Dual Chamber
SC: Single Chamber
PU: Universal Plate
PP: Paddle Plate
FC: Flow Conditioner
RP: Repair Kit
SR: Seal Ring
LS: Leveling Saddle
WNCF: Weld Neck Companion Flange
WNRF: Weld Neck Raised Face Flange
TH: Thermowell
SP: Sample Probe
TW: Testwell
GA: Standard Connection Gauge
GABM: Back Mount Gauge
3: 3/16"
3: 3/16"
6: 3/8"
3: 3/16"
6: 3/8"
3: 3/16"
1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2", 3", 4"
2: 1/8", 3: 3/16"
6: 600#
1: 150#, 3: 300#, 6: 600#, 9: 900#, 15: 1500# , 25: 2500#
F: Flange
P: Pin
PL: Pin Long
R: RTJ
02: 2", 03: 3", 04: 4", 06: 6", 08: 8", 10: 10", 12: 12", 14: 14", 16: 16", 18: 18", 20: 20", 24: 24"
2: 2", 3: 3", 4: 4", 6: 6", 8: 8", 10: 10", 12: 12", 14: 14", 16: 16", 18: 18", 20: 20", 24: 24"
002: 2", 003: 3", 004: 4", 006: 6", 008: 8", 010: 10", 012: 12"
1: 150#
3: 300#
6: 600#
XXXX: Specify in 1/4" increments
2.5: 2.5" Dial
4: 4" Dial
BB6H: Block & Bleed
BB6H: Block & Bleed
M5S: Regular
MA5S: 90 Degree
GC4S: Gas Chromatograph
M5S: Regular, MA5S: 90 Degree
G6H: Gauge Valve 4.75"
GL6H: Gauge Valve 7.25"
N6G: Gas Valve
NA6G: Angle Gas Valve
H6H: Hand Valve
1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2", 3", 4"
02: 2", 03: 3", 04: 4", 06: 6", 08: 8", 10: 10", 12: 12"
14.3: API Design
(empty): 85 Ed.
14.3: API Design
02: 2", 03: 3", 04: 4", 06: 6", 08: 8", 10: 10", 12: 12", 14: 14" , 16: 16", 18: 18", 20: 20", 24: 24"
50: NOVA 50E Model
14.3: API Design
(empty): 85 Ed.
SS: Stainless Steel
CS: Carbon Steel
1: Cast Steel
02: 2", 03: 3", 04: 4", 06: 6", 08: 8", 10: 10", 12: 12"
1/4", 1/2", 3/4", 1"
1/4" standard 2.5" Class
1/2" standard 4" Class
M5S: Regular, MA5S: 90 Degree
(empty): 1/2" NPT standard, 12: 3/4”, 16: 1”
(empty): 1/2" NPT standard, 12: 3/4”, 16: 1”
P: Female NPT
FL: 4-Bolt Flange
4: 1/4"
P: Female NPT, FL: 4-Bolt Flange
(empty): 1/2" NPT standard, 12: 3/4", 16: 1"
4: 1/4", (empty): 1/2", 12: 3/4"
1K: 1000 psi
2K: 2000 psi
1: 1/8", 2: 1/4", 3: 3/8", 4: 1/2"
02: 2", 03: 3", 04: 4", 06: 6", 08: 8", 10: 10", 12: 12", 14: 14", 16: 16", 18: 18", 20: 20", 24: 24", 30: 30", 36: 36"
40: Sch 40
80: Sch 80
14.3: API Design
(empty): 85 Ed.
40: Sch 40
80: Sch 80
1/4", 1/2", 3/4", 1"
30, 60, 160, 300, 600, 1000, 1500, 2000, 5000
M: Male NPT
P: Female NPT
MS: Male Socket Weld
FS: Female Socket Weld
M: Male NPT
P: Female NPT
MS: Male Socket Weld
FS: Female Socket Weld
P: Female NPT
FL: 4-Bolt Flange
CP: 4-Bolt Coplanar Flange
P: Female NPT
P: Female NPT, FL: 4-Bolt Flange, CP: 4-Bolt Coplanar Flange
M: Male NPT
P: Female NPT
MS: Male Socket Weld
FS: Female Socket Weld
M: Male NPT
P: Female NPT
FF: Female x Female
MF: Male x Female
FM: Female x Male
MM: Male x Male
40: Sch 40
80: Sch 80
XXXX: Specify to ten-thousandths
40: Sch 40
80: Sch 80
1: Nitrile
2: HNBR
3: FKM
4: Teflon
WSN: With studs & nuts
(empty): No studs & nuts
.262"
.385"
.500"
.718"
(empty): 1/2" NPT standard, 12: 3/4”, 16: 1”
(empty): 1/2" NPT standard, 12: 3/4”, 16: 1”
SS: ASTM A182 Gr. 316
CS: ASTM A105
4: 1/4"
SS: ASTM A182 Gr. 316, CS: ASTM A105
(empty): 1/2" NPT standard, 12: 3/4", 16: 1"
4: 1/4", (empty): 1/2", 12: 3/4"
RP: Reduced Port
FP: Full Port
FW: Flange x Weld
WW: Weld x Weld
FW: Flange x Weld
2A: Gr. 316 SS
A: 1/8"
B: 1/4"
C: 3/8"
D: 1/2"
A: 304 SS
B: 316 SS
M: Male NPT
P: Female NPT
MS: Male Socket Weld
FS: Female Socket Weld
P: Female NPT, FS: Female Socket Weld
A: FEPM O Ring
V: FKM O Ring
AX
AX
AX
AX
AX
AX
AX
BV: Ball Valve
BVSW: Ball Valve Seal Welded
DC: Dual Chamber
SC: Single Chamber
PU: Universal Plate
PP: Paddle Plate
FC: Flow Conditioner
RP: Repair Kit
SR: Seal Ring
LS: Leveling Saddle
WNCF: Weld Neck Companion Flange
WNRF: Weld Neck Raised Face Flange
TH: Thermowell
SP: Sample Probe
TW: Testwell
GA: Standard Connection Gauge
GABM: Back Mount Gauge
3: 3/16"
3: 3/16"
6: 3/8"
3: 3/16"
6: 3/8"
3: 3/16"
1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2", 3", 4"
2: 1/8", 3: 3/16"
6: 600#
1: 150#, 3: 300#, 6: 600#, 9: 900#, 15: 1500# , 25: 2500#
F: Flange
P: Pin
PL: Pin Long
R: RTJ
02: 2", 03: 3", 04: 4", 06: 6", 08: 8", 10: 10", 12: 12", 14: 14", 16: 16", 18: 18", 20: 20", 24: 24"
2: 2", 3: 3", 4: 4", 6: 6", 8: 8", 10: 10", 12: 12", 14: 14", 16: 16", 18: 18", 20: 20", 24: 24"
002: 2", 003: 3", 004: 4", 006: 6", 008: 8", 010: 10", 012: 12"
1: 150#
3: 300#
6: 600#
XXXX: Specify in 1/4" increments
2.5: 2.5" Dial
4: 4" Dial
BB6H: Block & Bleed
BB6H: Block & Bleed
M5S: Regular
MA5S: 90 Degree
GC4S: Gas Chromatograph
M5S: Regular, MA5S: 90 Degree
G6H: Gauge Valve 4.75"
GL6H: Gauge Valve 7.25"
N6G: Gas Valve
NA6G: Angle Gas Valve
H6H: Hand Valve
1/4", 3/8", 1/2", 3/4", 1", 1 1/4", 1 1/2", 2", 3", 4"
02: 2", 03: 3", 04: 4", 06: 6", 08: 8", 10: 10", 12: 12"
14.3: API Design
(empty): 85 Ed.
14.3: API Design
02: 2", 03: 3", 04: 4", 06: 6", 08: 8", 10: 10", 12: 12", 14: 14" , 16: 16", 18: 18", 20: 20", 24: 24"
50: NOVA 50E Model
14.3: API Design
(empty): 85 Ed.
SS: Stainless Steel
CS: Carbon Steel
1: Cast Steel
02: 2", 03: 3", 04: 4", 06: 6", 08: 8", 10: 10", 12: 12"
1/4", 1/2", 3/4", 1"
1/4" standard 2.5" Class
1/2" standard 4" Class
M5S: Regular, MA5S: 90 Degree
(empty): 1/2" NPT standard, 12: 3/4”, 16: 1”
(empty): 1/2" NPT standard, 12: 3/4”, 16: 1”
P: Female NPT
FL: 4-Bolt Flange
4: 1/4"
P: Female NPT, FL: 4-Bolt Flange
(empty): 1/2" NPT standard, 12: 3/4", 16: 1"
4: 1/4", (empty): 1/2", 12: 3/4"
1K: 1000 psi
2K: 2000 psi
1: 1/8", 2: 1/4", 3: 3/8", 4: 1/2"
02: 2", 03: 3", 04: 4", 06: 6", 08: 8", 10: 10", 12: 12", 14: 14", 16: 16", 18: 18", 20: 20", 24: 24", 30: 30", 36: 36"
40: Sch 40
80: Sch 80
14.3: API Design
(empty): 85 Ed.
40: Sch 40
80: Sch 80
1/4", 1/2", 3/4", 1"
30, 60, 160, 300, 600, 1000, 1500, 2000, 5000
M: Male NPT
P: Female NPT
MS: Male Socket Weld
FS: Female Socket Weld
M: Male NPT
P: Female NPT
MS: Male Socket Weld
FS: Female Socket Weld
P: Female NPT
FL: 4-Bolt Flange
CP: 4-Bolt Coplanar Flange
P: Female NPT
P: Female NPT, FL: 4-Bolt Flange, CP: 4-Bolt Coplanar Flange
M: Male NPT
P: Female NPT
MS: Male Socket Weld
FS: Female Socket Weld
M: Male NPT
P: Female NPT
FF: Female x Female
MF: Male x Female
FM: Female x Male
MM: Male x Male
40: Sch 40
80: Sch 80
XXXX: Specify to ten-thousandths
40: Sch 40
80: Sch 80
1: Nitrile
2: HNBR
3: FKM
4: Teflon
WSN: With studs & nuts
(empty): No studs & nuts
.262"
.385"
.500"
.718"
(empty): 1/2" NPT standard, 12: 3/4”, 16: 1”
(empty): 1/2" NPT standard, 12: 3/4”, 16: 1”
SS: ASTM A182 Gr. 316
CS: ASTM A105
4: 1/4"
SS: ASTM A182 Gr. 316, CS: ASTM A105
(empty): 1/2" NPT standard, 12: 3/4", 16: 1"
4: 1/4", (empty): 1/2", 12: 3/4"
RP: Reduced Port
FP: Full Port
FW: Flange x Weld
WW: Weld x Weld
FW: Flange x Weld
2A: Gr. 316 SS
A: 1/8"
B: 1/4"
C: 3/8"
D: 1/2"
A: 304 SS
B: 316 SS
M: Male NPT
P: Female NPT
MS: Male Socket Weld
FS: Female Socket Weld
P: Female NPT, FS: Female Socket Weld
A: FEPM O Ring
V: FKM O Ring
