Differential Pressure Flowmeters

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19 Products

Easy Read Flowmeters


Style B—Left to Right	Style B—Right to Left

Style B—Bottom to Top	Style B—Top to Bottom

A large dial instead of a scale makes it easier to read the flow rate from a distance. As liquid flows through these flowmeters, it pushes a needle along the dial, showing you the flow rate. They measure flow correctly no matter the mounting orientation.

These flowmeters are calibrated with water but can be used with other liquids. If you’re using these with a liquid other than water, you’ll need to calculate the flow rate by multiplying the number shown on the scale by the specific-gravity conversion factor for your liquid.

Choose a direction of flow that matches your pipe system, so you don't have to tilt your head to read the dial.

Choose a fitting material that is compatible with the liquid you're running through your line.

Bronze Fitting—Bronze fittings resist impact better than PVC fittings.

Style B—Style B flowmeters should be installed away from other fittings to get the most accurate reading. To determine how far away from the fittings it should be, take your pipe's diameter and multiply it by 10.

								Temp., ° F
	Style	Flow, gpm	Dial Size	End-to-End Lg.	Overall Ht.	Accuracy	Max. Pressure @ Temp.	Min.	Max.	Seal Material	Mounting Position	Choose a Direction of Flow		Each
Bronze Body with Bronze Fittings







				1/2 NPT Female

				B	0.5 to 4	3 1/2"	4 9/16"	6 11/16"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	9858K51	0000000


				B	0.5 to 6	3 1/2"	4 9/16"	6 11/16"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	9858K92	000000




						3/4 NPT Female

						B	1.5 to 10	3 1/2"	4 9/16"	6 11/16"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	9858K52	000000


						B	2 to 15	3 1/2"	4 9/16"	6 11/16"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	9858K93	000000




								1 NPT Female

								B	3 to 20	3 1/2"	4 9/16"	6 15/16"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	9858K53	000000


								B	4 to 30	3 1/2"	4 9/16"	6 15/16"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	9858K94	000000




										1 1/2 NPT Female

										B	5 to 60	3 1/2"	4 9/16"	7 5/8"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	9858K54	000000


										B	15 to 100	3 1/2"	4 9/16"	7 5/8"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	9858K95	000000




												2 NPT Female

												B	15 to 100	3 1/2"	4 9/16"	8 3/8"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	9858K55	00000000


												B	30 to 200	3 1/2"	4 9/16"	8 3/8"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	9858K56	00000000




														3 NPT Female

														B	40 to 300	3 1/2"	9 13/16"	9 13/16"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	9858K57	00000000

Easy-Read Flowmeters for Gases

Instead of a scale, these flowmeters have a large dial that makes it easy to read the flow rate of your gas from a distance. As gas flows through, it pushes a needle along the dial, showing you the flow rate.

These flowmeters are calibrated with air but can be used with other gases. If you’re using these with a gas other than air, you’ll need to calculate the flow rate by multiplying the number shown on the scale by the specific-gravity conversion factor for your gas.

Bronze Body with Bronze Fittings


Female Left to Right	Female Right to Left	Female Bottom to Top	Female Top to Bottom

Flowmeters with a bronze body should be installed away from other fittings to get the most accurate reading. To determine how far away from the fittings it should be, take your pipe's diameter and multiply it by 10. Choose a direction of flow that matches your pipe system, so you don't have to tilt your head to read the dial.

						Temp., ° F					3 1/2" Dial Size
	Flow, scfm	End-to-End Lg.	Overall Ht.	Accuracy	Max. Pressure @ Temp.	Min.	Max.	Seal Material	Mounting Position	Choose a Direction of Flow		Each
1/4 NPT Female



		3 to 20	4 9/16"	6 11/16"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	42005K38	0000000


		1/2 NPT Female



				5 to 40	4 9/16"	6 11/16"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	42005K31	000000


				3/4 NPT Female



						20 to 150	4 9/16"	6 11/16"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	42005K32	00000000


						1 NPT Female



								40 to 300	4 9/16"	6 15/16"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	42005K33	00000000


								1 1/2 NPT Female



										50 to 600	4 9/16"	7 5/8"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	42005K34	00000000


										2 NPT Female



												100 to 800	4 9/16"	8 3/8"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	42005K35	00000000


												150 to 1,000	4 9/16"	8 3/8"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	42005K36	00000000


												3 NPT Female



														300 to 2,000	4 9/16"	9 13/16"	±3%	180 psi @ 70° F	-30	212	Buna-N	Any Angle	Left to Right, Right to Left, Bottom to Top, Top to Bottom	42005K37	00000000