We are open and available to support your project and maintenance needs. Call us!
Search Our Site
Search
Get Directions
Directions
Call Us
Phone
Email Us
Contact Us

Orifice Plates
for Flow Measurement

Series 520 Paddle Orifice Plates

Manufactured for Use with Raised Face Orifice Flanges and Holding Blocks

Series 520 Paddle Orifice Plates
Series 520 Paddle Orifice Plates
EZ Purge Blind 3D Illustration Download

Product Features

• Meets or Exceeds AGA, ISA, ANSI, ASME & API Standards
• Available in any material requested
• Fast and accurate orifice bore calculations available
• USA Industries can provide coatings upon request

Product Description

USA Industries' Paddle-Type Orifice Plates are manufactured for use with Raised Face Orifice Flanges and Holding Blocks.

Skilled craftsmen and state-of-the-art machining practices assure that our paddle orifice plates meet or exceed the stringent requirements of AGA, ISA, ANSI, ASME & API Standards.

Our paddle-type orifice plates conform to the most stringent manufacturing processes to achieve optimum accuracy standards in the industry. Our engineering staff can run your bore calculations quickly and accurately.

Paddle-type orifice plates are stocked in 304 & 316 stainless steel and available in any material requested, such as monel, hastelloy, copper, nickel, and more. USA Industries' can also coat your orifice plates with any coating you require.
Paddle Orifice Plate Sizing Chart
Orifice Plate by Flange Rating
Line Size A HL HW T
1/2" 1 7/8" 2 1/8" 2 1/8" 2 1/8" 2 1/2" 2 1/2" 2 3/4" 4" 1" 1/8"
3/4" 2 1/4" 2 5/8" 2 5/8" 2 5/8" 2 3/4" 2 3/4" 3"
1" 2 5/8" 2 7/8" 2 7/8" 2 7/8" 3 1/8" 3 1/8" 3 3/8"
1 1/4" 3" 3 1/4" 3 1/4" 3 1/4" 3 1/2" 3 1/2" 4 1/8"
1 1/2" 3 3/8" 3 3/4" 3 3/4" 3 3/4" 3 7/8" 3 7/8" 4 5/8"
2" 4 1/8" 4 3/8" 4 3/8" 4 3/8" 5 5/8" 5 5/8" 5 3/4"
2 1/2" 4 7/8" 5 1/8" 5 1/8" 5 1/8" 6 1/2" 6 1/2" 6 5/8"
3" 5 3/8" 5 7/8" 5 7/8" 5 7/8" 6 5/8" 6 7/8" 7 3/4"
4" 6 7/8" 7 1/8" 7" 7 5/8" 8 1/8" 8 1/4" 9 1/4"
5" 7 3/4" 8 1/2" 8 3/8" 9 1/2" 9 3/4" 10" 11"
6" 8 3/4" 9 7/8" 9 3/4" 10 1/2" 11 3/8" 11 1/8" 12 1/8"
8" 11" 12 1/8" 12" 12 5/8" 14 1/8" 13 7/8" 15 1/4" 1/4"
10" 13 3/8" 14 1/8" 14 1/8" 15 3/4" 17 1/8" 17 1/8" 18 3/4" 6" 1 1/2"
12" 16 1/8" 16 5/8" 16 1/2" 18" 19 5/8" 20 1/2" 21 5/8"
14" 17 3/4" 19 1/8" 19" 19 3/8" 20 1/2" 22 3/4" -
16" 20 1/4" 21 1/4" 21 1/8" 22 1/4" 22 5/8" 25 1/4" - 3/8"
18" 21 1/2" 23 3/8" 23 1/4" 24" 25" 27 5/8" -
20" 23 3/4" 25 5/8" 25 3/8" 26 3/4" 27 3/8" 29 5/8" -
22" 26" 27 3/4" 27 1/2" 28 7/8" - - -
24" 28 1/8" 30 3/8" 30 1/8" 31" 32 7/8" 35 1/2" - 1/2"
30" 34 5/8" 37 3/8" 37 1/4" 38 1/8" - - -
36" 41 1/8" 43 7/8" 43 7/8" 44 3/8" - - -
All Sizes in Inches  -  Additional Sizes Available

Get Quick Quote!

Start my Quote

Get Quick Quote

Get Quick Quote

Product Specs

Paddle Orifice Plate Sizing Chart

Select Flange Rating to see specs.

150# Flange Rating
Line Size A HL HW T
1/2" 1 7/8" 4" 1" 1/8"
3/4" 2 1/4"
1" 2 5/8"
1 1/4" 3"
1 1/2" 3 3/8"
2" 4 1/8"
2 1/2" 4 7/8"
3" 5 3/8"
4" 6 7/8"
5" 7 3/4"
6" 8 3/4"
8" 11" 1/4"
10" 13 3/8" 6" 1 1/2"
12" 16 1/8"
14" 17 3/4"
16" 20 1/4" 3/8"
18" 21 1/2"
20" 23 3/4"
22" 26"
24" 28 1/8" 1/2"
30" 34 5/8"
36" 41 1/8"
300# Flange Rating
Line Size A HL HW T
1/2" 2 1/8" 4" 1" 1/8"
3/4" 2 5/8"
1" 2 7/8"
1 1/4" 3 1/4"
1 1/2" 3 3/4"
2" 4 3/8"
2 1/2" 5 1/8"
3" 5 7/8"
4" 7 1/8"
5" 8 1/2"
6" 9 7/8"
8" 12 1/8" 1/4"
10" 14 1/4" 6" 1 1/2"
12" 16 5/8"
14" 19 1/8"
16" 21 1/4" 3/8"
18" 23 3/8"
20" 25 5/8"
22" 27 3/4"
24" 30 3/8" 1/2"
30" 37 3/8"
36" 43 7/8"
400# Flange Rating
Line Size A HL HW T
1/2" 2 1/8" 4" 1" 1/8"
3/4" 2 5/8"
1" 2 7/8"
1 1/4" 3 1/4"
1 1/2" 3 3/4"
2" 4 3/8"
2 1/2" 5 1/8"
3" 5 7/8"
4" 7"
5" 8 3/8"
6" 9 3/4"
8" 12" 1/4"
10" 14 1/8" 6" 1 1/2"
12" 16 1/2"
14" 19"
16" 21 1/8" 3/8"
18" 23 1/4"
20" 25 3/8"
22" 27 1/2"
24" 30 1/8" 1/2"
30" 37 1/4"
36" 43 7/8"
600# Flange Rating
Line Size A HL HW T
1/2" 2 1/8" 4" 1" 1/8"
3/4" 2 5/8"
1" 2 7/8"
1 1/4" 3 1/4"
1 1/2" 3 3/4"
2" 4 3/8"
2 1/2" 5 1/8"
3" 5 7/8"
4" 7 5/8"
5" 9 1/2"
6" 10 1/2"
8" 12 5/8" 1/4"
10" 15 3/4" 6" 1 1/2"
12" 18"
14" 19 3/8"
16" 22 1/4" 3/8"
18" 24"
20" 26 3/4"
22" 28 7/8"
24" 31" 1/2"
30" 38 1/8"
36" 44 3/8"
900# Flange Rating
Line Size A HL HW T
1/2" 2 1/2" 4" 1" 1/8"
3/4" 2 3/4"
1" 3 1/8"
1 1/4" 3 1/2"
1 1/2" 3 7/8"
2" 5 5/8"
2 1/2" 6 1/2"
3" 6 5/8"
4" 8 1/8"
5" 9 3/4"
6" 11 3/8"
8" 14 1/8" 1/4"
10" 17 1/8" 6" 1 1/2"
12" 19 5/8"
14" 20 1/2"
16" 22 5/8" 3/8"
18" 25"
20" 27 3/8"
22" -
24" 32 7/8" 1/2"
30" -
36" -
1500# Flange Rating
Line Size A HL HW T
1/2" 2 1/2" 4" 1" 1/8"
3/4" 2 3/4"
1" 3 1/8"
1 1/4" 3 1/2"
1 1/2" 3 7/8"
2" 5 5/8"
2 1/2" 6 1/2"
3" 6 7/8"
4" 8 1/4"
5" 10"
6" 11 1/8"
8" 13 7/8" 1/4"
10" 17 1/8" 6" 1 1/2"
12" 20 1/2"
14" 22 3/4"
16" 25 1/4" 3/8"
18" 27 5/8"
20" 29 5/8"
22" -
24" 35 1/2" 1/2"
30" -
36" -
2500# Flange Rating
Line Size A HL HW T
1/2" 2 3/4" 4" 1" 1/8"
3/4" 3"
1" 3 3/8"
1 1/4" 4 1/8"
1 1/2" 4 5/8"
2" 5 3/4"
2 1/2" 6 5/8"
3" 7 3/4"
4" 9 1/4"
5" 11"
6" 12 1/8"
8" 15 1/4" 1/4"
10" 18 3/4" 6" 1 1/2"
12" 21 5/8"
14" -
16" - 3/8"
18" -
20" -
22" -
24" - 1/2"
30" -
36" -
Flange Rating
Line Size A HL HW T
Please select Flange Rating
All Sizes in Inches
Additional Sizes Available

Frequently Asked Questions

Related Products

Series 500 Orifice Plates & Seals

USA Industries' universal orifice plates are commonly used for flow measurement due to their simplicity, reliable performance, and ease of installation.
Product Details
Ring Type Joint (RTJ) Plates

The RTJ type orifice plate incorporates an integral gasket, either oval or octagonal ring, for mounting between ring type joint flanges.
Product Details
Restriction Orifice Unions

Single bolt isolation plug with neoprene seals and aluminum die cast bodies. Available from 4" through 48" and rated back pressure up to 13 PSIG.
Product Details
Blinds, Flanges & Storage Solutions

We are the largest manufacturer of Paddle Blinds, Blind Flanges & Blind Racks with more than 1 Million lbs of inventory in stock and ready to ship 24/7!
Product Details
Industrial Pipe Plugs

We offer a wide variety of pipe plugs from traditional solutions to our own double block and bleed plug, high pressure plugs and other custom plugs.
Product Details
Industrial Tube Plugs

With 100+ different combinations of plug body & material, and more than 500,000 tube plugs in stock, we're sure to have the tube plugs you need!
Product Details
USA Industries, Inc. BBB Business Review
Company Info
Products & Services
© 2003 - 2020 USA Industries, Inc.® | All Rights Reserved 315 State Street | South Houston, TX, USA 77587 | Site Map

Quote Request Received!

Thank you for submitting a quote request with USA Industries. One of our experienced staff members will respond to you shortly.

First Time Working With USA Industries?

If this is the first time requesting a quote from USA Industries, please fill out the form below to help expedite the quote process!

Address Info Received!

Thank you for providing this extra information! This will help expedite our quoting process.

A formalized quote typically takes 1 - 24 hours to generate, depending on the complexity of your quote request.

You're Signed Up!

We will start including you on our email notifications about new products, upcoming events and more!

Your Submission Was Received!

Thank you for reaching out to USA Industries. One of our experienced staff members will respond to you shortly.

Need something ASAP?

For immediate assistance, please call us at (713) 941-3797 or Toll Free at (800) 456-8721.