Rockwell Nordstrum Hypreseal Valves
Plug valves are quarter-turn iron plug valves or steel plug valves that use a tapered lubricated plug to stop the flow. The Nordstrom steel lubricated plug valve is turned 90° from an open position to the closed position to block flow. It is used in place of a gate valve where quick operation is required. Nordstrom valves are made as iron plug valves, threaded and flanged, or the Nordstrom plug valve in steel as threaded, socket weld, butt weld, flanged, or RTJ.
Steel plug valve
For general service, an iron plug valve, threaded or flanged can be utilized, but in high-pressure or high-temperature services a steel plug valve must be specified. Nordstrom steel plug valves are made in many grades of steel. In addition to the iron plug valve, the Nordstrom plug valve is also made of alloy steel.
Introducing the Rockwell Hypreseal Plug Valve
Rockwell manufactures steel lubricated plug valves known as Nordstrom plug valve, Hypreseal plug valve, Dynamic Balance lubricated steel plug valve, Super Nordstrom steel lubricated plug valve, Rockwell Nordstrom steel lubricated plug valve, and Hypresphere lubricated steel plug valve. These Nordstrom valves are constructed with the following body materials: cast bronze, ASTM B-62, cast iron ASTM A126, Semi-steel ductile iron ASTM A395, cast carbon steel, ASTM A-216 WCB, grade WCC, ASTM A217 grade WC9, grade WC6, ductile iron ASTM A-536; stainless steel ASTM A-351, grade CF8, grade CF8M, grade CF8C, grade CF3M, ASTM A105, ASTM FI82 stainless steel grade 316, alloy 20 cn7m, and monel m35. The internal plug and trim materials on Nordstrom valves vary based on the severity of the application. Standard plug and trim materials include ASTM A-48 iron, Alloy Steel HRC 22, A48Gr45B/50B, or Carbon Steel A216 LCC. Specialized options for high temperature include forgings in ASTM A182, grades F11, F22, F5, and F9, And stainless steels in 316, 317, 347, Alloy 20 cn7m. When ordering or submitting an RFQ for Nordstrom valves, specify the end connections. The iron plug valve is threaded or flanged, or the Nordstrom plug valve in steel is threaded, socket weld, butt weld, flanged, or RTJ.
For material selection and corrosion resistance guides for Nordstrom valves, refer to Authorized Parts Home Page Cross Reference Charts and Guides at: https://www.authorizedparts.com/
Lubricated plug valves: markings and brand identification of Nordstrom valves
Nordstrom plug valve, Rockwell Nordstrom, Flowserve Nordstrom, Super Nordstrom all have a reputation for proven performance and rugged durability. Hypreseal is first-generation Rockwell Nordstrom, then Dynamic Balance, Flowserve Nordstrom, and Super Nordstrom are the second generation. Flowserve Nordstrom and Super Nordstrom have different markings than Hypreseal Rockwell Nordstrom, but the Nordstrom plug valves have interchangeable designs. Therefore, Nordstrom valve’s reputation for proven performance and rugged design remains consistent when replacing a Rockwell Nordstrom for a Flowserve Nordstrom and Super Nordstrom valve. Nordstrom steel plug valves, Flowserve Nordstrom, and Super Nordstrom markings are also found on iron plug valves. Iron plug valves are lubricated plug valves that are also made with threaded ends with the same reputation for proven performance and rugged design. The Nordstrom plug valve, the iron plug valve specifically, may not carry the Hypreseal name, but shows an M58 or M59 marking instead. All Nordstrom valves should also have FIG cast into them, with the Nordstrom plug valve figure number. The iron plug valve is the most popular of the Nordstrom valves and needs careful inspection for the proper wrench size.
Nordstrom plug valve Wrenches
Nordstrom plug valves, both the iron plug valve and the steel plug valve, have optional wrenches for operation. Since there were different designs of Nordstrom valves, care must be taken choosing the correct wrench. Information for identifying Wrenches for Nordstrom Valves with Square or Obround Stems, Valves with Square Heads, and wrenches with Obround Heads with stop lugs, and without stopping, lugs can be located in our Technical Library under: Nordstrom Iron plug valves, Nordstrom multi-port plug valves, Rockwell Nordstrom Steel Plug Valve, Nordstrom Wrenches, Nordstrom Maintenance Manual, and Nordstrom-Hypreseal Repair Manual at:
How to order Rockwell Hypreseal Plug Valve
To order please select the valve type, including standard pattern plug valve, or venture pattern plug valve, valve size, pressure class, (Class 150, 175, 200, 250, 300, 400, 600, 900, 1500, 2500, and 4500) body material, trim material, and end connections. Nordstrom valves are available in threaded NPT, flanged, flanged RTJ, and butt-weld end (specify bore schedule) connections. Options include wrenches for wrench-operated, manual gear, chain wheel, and pneumatic actuation.
Submit your RFQ for Nordstrom valves on Authorized Parts easy to use form at:
How to identify
If no Figure Number is visible on the body casting, a valve can normally be identified by pressure class and end connection. Nordstrom valves with (1/2) figure number designations are butt-weld end connections. Markings on Nordstrom valves may include Rockwell, Hypreseal, DB for Dynamic Balance, Super Nordstrom, Rockwell Nordstrom, or Hypresphere. As a quick reference tool to help identify Nordstrom valves, review the following figure numbers based on pressure class:
200 CWP – Figure 19421/2, 19431/2, 19431/4
Class 150 Steel Lubricated Plug Valve Figure Numbers:
Class 150 – Figure 1924, 1925, 19251/2
Class 150 – Figure 1945, 19451/2
Class 150 – Figure 1949, 19491/2
Class 150 – Figure 2445
Class 150 – Figure 2449
Class 150 – Figure 4149, 41491/2, 41491/4
Class 150 – Figure 41851/2
Class 150 – Figure 41871/2, 41891/2
Class 300 Steel Lubricated Plug Valve Figure Numbers:
Class 300 – Figure 2024, 2025, 20251/2
Class 300 – Figure 2045, 20451/2, 20451/4
Class 300 – 2049, 20491/2, 20491/4
Class 300 – Figure 2545
Class 300 – Figure 2549
Class 300 – Figure 4245, 42451/2, 42451/4
Class 300 – Figure 4249, 42491/2, 42491/4
Class 600 Steel Lubricated Plug Valve Figure Numbers:
Class 600 – Figure 2224
Class 600 – Figure 2245, 22451/2, 22451/4
Class 600 – Figure 2249, 22491/2, 22491/4
Class 600 – Figure 4749, 47491/2, 47491/4
Class 900 Steel Lubricated Plug Valve Figure Numbers:
Class 900 – Figure 2344, 2345, 23451/2, 23451/4
Class 900 – Figure 2349, 23491/2, 23491/4
Class 900 – Figure 4949, 49491/2, 49491/4
Class 1500 Steel Lubricated Plug Valve Figure Numbers:
Class 1500 – Figure 3044, 3045, 30451/2, 30451/4
Class 1500 – Figure 3049, 30491/2, 30491/4
Class 1500 – Figure 6049, 60491/2, 60491/4
Class 2500 Steel Lubricated Plug Valve Figure Numbers:
Class 2500 – Figure 20545, 205451/2, 205451/4
Class 2500 – Figure 20549, 205491/2, 205491/4
Class 2500 – Figure 9349, 93491/2, 93491/4
Class 3000 and 5000 Steel Lubricated Plug Valve Figure Numbers:
3000 – Figure 76305 and API Class 5000 – Figure 76505
5000 – Figure 76509
Access Rockwell Hypreseal Plug Valve literature at:
Can a Rockwell valve replace another make of valve, or be replaced by another make of valve?
Yes. Other manufacturer’s valves cross-reference to Rockwell Plug valve and vice versa. Powell, Homestead, Nordstrom, Dezurik, Walworth, and ACF are examples of manufacturers with equivalent products. However, not all design features are the same, so care should be taken when evaluating.
Are test reports available for the Rockwell Hypreseal Plug Valve?
Yes. All valve testing requirements can be made available for Rockwell Valves, including MTR’s, NDE, Pressure Testing, Radiography Testing, Magnetic Particle, Dye Penetrant, PMI, Positive Material Identification, Hardness Testing, and Failure Analysis.
Are Nordstrom valves and Rockwell Valves the same?
Yes. Nordstrom valves have undergone name changes, but the products remain the same. Nordstrom valves may carry markings as Rockwell, Hypreseal, DB for Dynamic Balance, Super Nordstrom, Rockwell Nordstrom, or Hypresphere. The Nordstrom plug valve has maintained the same design for 50 years.
How do I size a Nordstrom plug valve wrench?
A Nordstrom plug valve, both the iron plug valve and the steel plug valve, have optional wrenches for operation. Since there were different designs of Nordstrom valves, care must be taken choosing the correct wrench. Determine which generation of valve you have and examine the shape of the stem on top of the valve. Wrenches for Nordstrom Valves are made for valves with Square or Obround Stems, Valves with Square Heads, and wrenches with Obround Heads with stop lugs, and without stop lugs.