High Temperature Flow Monitors

In-Line High Temperature Flow Rate Monitors
(For 1/4 To 2 Inch Pipe Sizes)

Engineering Specifications
The high temperature in-line flow rate monitor shall:

• use the variable annular orifice technique with compression spring recovery.
• not require inlet or outlet straight plumbing or require vertical pipe mounting.
• have a measuring accuracy of +/-2/5% of full scale in the center third of the measuring range and +/-4% of full scale accuracy over the entire flow measuring range.
• have a stainless steel sharp-edged orifice.
• have a minimum temperature rating of:
H-seires 400 deg. F (204 deg C)
J-series 600 deg. F (315 deg C)

• Multi-Application:
Uses include: barrel heating fluids, thermal transfer fluids and non-steam water monitoring.

• Three Materials of Construction:
Select from aluminum, brass or stainless steel.

• Unrestricted Mounting:
Allows the designer to install the monitor in any orientation -- horizontal, vertical or inverted.

• Good Viscosity Stability:
A thin (.03") sharp-edged orifice provides excellent stability of readings to a minimum of 500 Sus.

• Rugged and Reliable:
Designed as a hydraulic service tool, this monitor will provide years of maintenance free performance.

• High Pressure Operation:
The magnetically coupled follower allows operation to 6000 PSIG and use with opaque liquids

• Twenty-three Different Ports Available. Standard selection of NPT, SAE and BSP permits system design versatility.

• Low Cost Precision:
Mid-scale measuring accuracy: within 2.5%. Full-scale accuracy: within 4%.

Materials of Construction: Wetted Components

	Aluminum	Brass	Stainless Steel
High-pressure casing, end ports and tapered shaft	Aluminum	Brass	#304 Stainless Steel
Seals	Viton® w/Teflon® backup Kalrez® w/Teflon® backup	Viton® w/Teflon® backup Kalrez® w/Teflon® backup	Viton® w/Teflon® backup Kalrez® w/Teflon® backup
Transfer Magnet	Teflon® coated Alnico	Teflon® coated Alnico	Teflon®coated Alnico
Floating Orifice Disk	Stainless Steel	Stainless Steel	Stainless Steel
All other internal parts	Stainless Steel	Stainless Steel	Stainless Steel

Materials of Construction: Non-Wetted Components

	Aluminum	Brass	Stainless Steel
Window Tube	Pyrex	Pyrex	Pyrex
Window Seals	Teflon®	Teflon®	Teflon®

Teflon, Viton and Kalrez are registered trademarks of duPont de Nemours & Co.

Performance Specifications:

Measuring Accuracy:	2.5% of full-scale in the center third of the measuring range; 4% of full-scale over the entire scale range.
Repeatability:	1% of full-scale
Flow measuring range:	0.1-150 GPM (0.4-560 LPM)
Pressure differential:	see graphs, Gases: see pneumatics
Maximum operating pressure:	aluminum and brass monitors: 3500 PSIG (240 Bar) stainless steel monitors: 6000 PSIG (410 Bar)
Maximum operating temperature:	H-series: 400F (204C) J-series: 600F (315C)
Standard calibration fluids:	Oil monitors: DTE 25 @ 110F (43C), 0.873 sg Water monitors: tap water @ 70F (21C), 1.0 sg Air monitors: air @ 70F (21C), 1.0 sg and 100 PSIG (6.8 Bar)

Mechanical

DIM	Series 3	Series 4	Series 5	Series 6
A	1-7/8" (48mm)	2-3/8" (60mm)	3-1/2" (90mm)	3-1/2" (90mm)
B	6-9/16" (167mm)	7-5/32" (182mm)	10-1/8" (258mm)	12-5/8" (322mm)
Port Sizes	NPTF: 1/4", 3/8", 1/2" SAE: #6, #8, #10 BSP: 3/8", 1/2"	NPTF: 3/4", 1" SAE: #12, #16 BSP: 3/4", 1"	NPTF:1-1/4",1-1/2" SAE: #20, #24 BSP: 1-1/4", 1-1/2"	NPTF:2" SAE: #32 BSP: 2"