Ring Type Joint Orifice Plate Holders | Precision Engineered Products for Pipes & Tubes

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Flow Measurement Orifice Plates

Series 560 & 590
RTJ Plates & Plate Holders

Simple to use and easy to troubleshoot

PRECISION
CNC
MACHINING

For superior accuracy and quality control

About Series 560 Plates

About Series 590 Plates

RTJ Plateholder Sizing Chart

Bore Calculation Service

Bore Calculation Form

Select Flange Rating to See Specifications

300# Flange Rating
Line Size	Ring Size	A	B
1/2"	R-11	29/32"	4 1/4"
3/4"	R-13	1"
1"	R-16
1 1/2"	R-20
2"	R-23	1 1/16"
2 1/2"	R-26		5 1/4"
3"	R-31
3 1/2"	R-34
4"	R-37
5"	R-41		6 1/4"
6"	R-45		6 1/4"
8"	R-49		6 1/2"
10"	R-53	1 3/16"	7 1/2"
12"	R-57
14"	R-61
16"	R-65
18"	R-69
20"	R-73	1 1/4"
24"	R-77	1 7/16"

600# Flange Rating
Line Size	Ring Size	A	B
1/2"	R-11	29/32"	4 1/4"
3/4"	R-13	1"
1"	R-16
1 1/2"	R-20
2"	R-23	1 1/16"
2 1/2"	R-26		5 1/4"
3"	R-31
3 1/2"	R-34
4"	R-37
5"	R-41		6 1/4"
6"	R-45		6 1/4"
8"	R-49		6 1/2"
10"	R-53	1 3/16"	7 1/2"
12"	R-57
14"	R-61
16"	R-65
18"	R-69
20"	R-73	1 1/4"
24"	R-77	1 7/16"

900# Flange Rating
Line Size	Ring Size	A	B
1/2"	R-12	1"	4 1/4"
3/4"	R-14
1"	R-16
1 1/2"	R-20
2"	R-24	1 1/16"	5 1/4"
2 1/2"	R-27
3"	R-31
3 1/2"	-
4"	R-37
5"	R-41		6 1/4"
6"	R-45		6 1/4"
8"	R-49		6 1/2"
10"	R-53	1 3/16"	7 1/2"
12"	R-57	1 3/16"
14"	R-62	1 7/16"
16"	R-66	1 7/16"
18"	R-70	1 9/16"
20"	R-74	1 9/16"
24"	R-78	1 7/8"	9 1/2"

1500# Flange Rating
Line Size	Ring Size	A	B
1/2"	R-12	1"	6 1/2"
3/4"	R-14
1"	R-16
1 1/2"	R-20
2"	R-24	1 1/16"
2 1/2"	R-27
3"	R-35
3 1/2"	-
4"	R-39
5"	R-44
6"	R-46	1 3/16"
8"	R-50	1 5/16"
10"	R-54	1 7/16"	7 1/2"
12"	R-58	1 11/16"	8 1/2"
14"	R-63	1 7/8"	8 1/2"
16"	R-67	2"	9 1/2"
18"	R-71	2"	9 1/2"
20"	R-75	2 1/8"	10 1/2"
24"	R-79	2 5/16"	11 1/2"

2500# Flange Rating
Line Size	Ring Size	A	B
1/2"	R-13	1"	6 1/2"
3/4"	R-16
1"	R-18
1 1/2"	R-23	1 1/16"
2"	R-26	1 3/16"
2 1/2"	R-28
3"	R-32
3 1/2"	-	-
4"	R-38	1 5/16"
5"	R-42	1 7/16"	7 1/2"
6"	R-47	1 7/16"	7 1/2"
8"	R-51	1 9/16"	8 1/2"
10"	R-55	2"	8 1/2"
12"	R-60	2 1/8"	9 1/2"
14"	-	-	-
16"	-	-	-
18"	-	-	-
20"	-	-	-
24"	-	-	-

Flange Rating
Line Size	A	HL	HW	T

What types of Ring Type Joint Orifice Plate Holders (RTJ) are available?

What's the difference between Series 560 and Series 590?

Can I order these orifice plates in a custom thickness?

What materials can I get my orifice plates in?

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Fastest Turnaround

Same-day shipping on stock items. Custom orders in days, not weeks.

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Manufactured In-House

U.S. produced steel, PMI verified, QC certified.

ISO 9001:2015 Certified

Quality-driven manufacturing process ensures excellence.

Engineering-Innovation

Engineering Innovation

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USA Materials

100% USA Materials

All raw materials sourced from American mills.

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LINE BLINDS (Paddle, Spectacle, Spacer, Vent, Purge, Guillotine, Blind Flanges) BLEED RINGS/DRIP RINGS, BLEEDER CLEANERS/ROD OUT TOOLS HYDROSTATIC ISOLATION & TESTING PIPE PLUGS (High & Low/No Pressure) INVENTORY STORAGE (EZ Lock Paddle Blind & Blind Flange Racks, PSV Racks, Containers) ORIFICE PLATES, ORIFICE RESTRICTION UNIONS HETX TUBE PLUGS, SHOULDER PLUGS, GASKETS HETX MAINTENANCE TOOLS & TOOLING

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