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Milwaukee Valve 2974-M Series Iron Swing Check Valve, Class 125, Flanged

Available in multiple versions

Price: $129.99 - $3,042.90
Product Specifications
Brand Name Milwaukee
Material Type Iron
Maximum Pressure 200  PSI
Specification Met MSS SP-71 , ANSI B16.1
System of Measurement Inch
Connector Type Flanged
Manufacturer Series Number 2974-M Series
Maximum Steam Pressure Description 125 pounds_per_square_inch
Structure Description Swing
Style Name Flanged
UNSPSC Code 40141600

The Milwaukee Valve 2974-M series iron swing check valve with flanged conn... Read full product description

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Overall Length Part Number Part Number
The Amazon Standard Item Number (ASIN) uniquely identifies the item in the Amazon catalog.
Price Quantity
8 inches 2974-M - 200 B006BFZHS8
8.5 inches 2974-M - 212 B006BFZJ90
9.5 inches 2974-M - 300 B006BFZKJ4
11.5 inches 2974-M - 400 B006BFZLT8
13 inches 2974-M - 500 B006BFZN5A
14 inches 2974-M - 600 B006BFZOPO
19.5 inches 2974-M - 800 B006BFZPSK
+ $202.99 Shipping
24.5 inches 2974-M -1000 B006BFZRBK
+ $342.49 Shipping
27.5 inches 2974-M -1200 B006BFZSVE
+ $490.24 Shipping
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Product Features

  • Swing check valve restricts flow control to one direction, blocking reverse flow
  • Valve body made of ASTM A-126 cast iron for strength
  • 200 pounds per square inch (gauge) (psig) rating for water, oil, and gas (WOG) and 125 for steam working pressure (SWP)
  • Cracking pressure of 0.5 psi
  • Flanged connections on both ends for semi-permanent connections to tubing

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B006BI2JAE
  • Product Warranty: For warranty information about this product, please click here

Product Description

The Milwaukee Valve 2974-M series iron swing check valve with flanged connections on both ends is a class 125 valve used for restricting fluid flow to one direction. It has a hinged disc that swings onto the seat of the valve to block reverse flow. The valve body is made of American Society of Testing and Materials (ASTM) A-126 cast iron for strength. This valve has maximum pressure ratings of 200 pounds per square inch (gauge) (psig) for water, oil, and gas (WOG) and 125 psig for steam working pressure (SWP), and a cracking pressure of 0.5 psi. It has flanged end connections for semi-permanent yet reversible connections to tubing. This class 125 check valve is for use in water lines, processing plants, and agricultural applications and meets standard MSS SP-71 for quality assurance. Class is a standard relating to tolerance, construction, dimension, and wall thickness, but it is not a direct measurement of maximum working pressure.

Check valves have two ports and restrict the flow of fluids and other loose materials through a pipe or passageway to one direction. Flow enters through one port and exits through the other, closing when flow reverses or stops. Two common types of check valves are ball cone valves and swing check valves. A ball cone valve utilizes a spring-loaded ball seated against a cone-shaped interior surface to stop the flow of fluid in a forward direction, and a swing check valve has a movable disc on a hinge to block reverse flow. Check valves are rated by their cracking pressure (the minimum upstream pressure required for the valve to operate), and they are used in various water, gas, air, and steam lines.

The Milwaukee Valve Company manufactures manual and actuated valves, controls, and control accessories. The company, founded in 1901, and headquartered in New Berlin, WI, meets International Organization for Standardization (ISO) 9001:2008 and 14001:2004 standards.

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