Click for larger image and other views Image is representative of the product family. Select individual products in the table below for more specific images and product specifications

How can we improve our images or Product Specifications?

Milwaukee Valve 508 Series Bronze Swing Check Valve, Class 200, NPT Female

Be the first to review this item

Product Specifications
Material Type
Maximum Steam Pressure Description
200 pounds_per_square_inch
Structure Description
Brand Name
Manufacturer Series Number
508 Series
Specification Met
Maximum Pressure
400  PSI
Style Name
Connector Type
NPT Female
System of Measurement

This item is no longer available

These items ship for FREE with 2-Day Shipping on orders over $50. (Details)

Want it delivered on Mon, Apr 27? Order in-stock items in the next 14 hrs 24 mins and choose One-Day Shipping at checkout.

  • Share
Currently showing 1-10 of 10
Item length string Part number ASIN

The Amazon Standard Item Number (ASIN) uniquely identifies
the item in the (and Amazon) catalog.


If an item is currently out of stock, but has an estimated lead time, you can place an order now and we will ship it as soon as it is available.
You can also order more than we currently have in stock.
Read more about back orders in our help section.

All All      
Currently showing 1-10 of 10
2.25 inches 508 - 14 B006BG08WC yes $53.76 Buy Options
2.25 inches 508 - 38 B006BG0BFG yes $67.55 Buy Options
2.63 inches 508 - 12 B006BG07M8 yes $56.49 Buy Options
3 inches 508 - 34 B006BG0A8E yes $78.68 Buy Options
3.69 inches 508 - 100 B006BG0DA4 yes $86.95 Buy Options
4.38 inches 508 - 114 B006BG0FF2 Usually ships in 1 to 2 months $119.37 Buy Options
4.63 inches 508 - 112 B006BG0EH6 yes $175.30 Buy Options
5.88 inches 508 - 200 B006BG0GKG yes $285.75 Buy Options
7 inches 508 - 212 B006BG0HQY yes $293.08 Buy Options
7.88 inches 508 - 300 B006BG0IWC yes $527.55 Buy Options

Key Features

  • Swing check valve restricts flow control to one direction, blocking reverse flow
  • Valve body made of ASTM B-61 cast bronze for strength and corrosion resistance
  • 400 pounds per square inch (gauge) (psig) rating for water, oil, and gas (WOG) and 200 for steam working pressure (SWP)
  • Cracking pressure of 0.5 psi
  • Female National Pipe Taper (NPT) threads on both ends for connecting to male threaded pipes

Product Description

The Milwaukee Valve 508 series bronze swing check valve with female National Pipe Taper (NPT) threads on both ends is a class 200 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) B-61 cast bronze for strength and corrosion resistance. This valve has maximum pressure ratings of 400 pounds per square inch (gauge) (psig) for water, oil, and gas (WOG) and 200 psig for steam working pressure (SWP), and a cracking pressure of 0.5 psi. It has female NPT threads on both ends for connecting to male pipes with tighter seals than straight threads. This class 200 check valve is for use in water lines, processing plants, and agricultural applications and meets standard MSS SP-80 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.

How can we improve our Product Description?

Customer Reviews

There are no customer reviews yet.

Be the first to review this item

Go to the HomePage

Order by Phone
M-F 8am-10pm ET, Sat-Sun 8am-5pm ET 800-220-4242

My Account| Returns| Help

Website Feedback| Contact Us| Sell on AmazonSupply| Become an Affiliate

Privacy Notice| Conditions of Use

Follow Us 

© 2015, Inc. and its affiliates.