Contact mdi

Get Free Quote:
Contact Form
keckley@
mdisales.com

 Hours:
7:30am - 5:30pm ET
Monday - Friday

Style DL Check Valves

Retainerless Wafer Lug Body Double Disc

Photo of a Keckley DL style retainerless wafer lug body double disc check valve in carbon steel.

  Models

Use the buttons below to view the models available in your desired body material.


B2
NA
CS
36
LC
A2
HC
ML
DP

Bronze - Retainerless Wafer Lug Body (ASTM B 62, C83600)

Drag your finger across the table to scroll

Size Range Pressure Class Body Type Valve Style
2" - 48" 150 lb. Wafer Lug DL
2" - 48" 300 lb. Wafer Lug DL

Nickel Aluminum Bronze - Retainerless Wafer Lug Body (ASTM B 148, C95800)

Drag your finger across the table to scroll

Size Range Pressure Class Body Type Valve Style
2" - 48" 150 lb. Wafer Lug DL
2" - 48" 300 lb. Wafer Lug DL

Carbon Steel - Retainerless Wafer Lug Body (ASTM A 216, Grade WCB)

Drag your finger across the table to scroll

Size Range Pressure Class Body Type Valve Style
2" - 48" 150 lb. Wafer Lug DL
2" - 48" 300 lb. Wafer Lug DL
2" - 48" 600 lb. Wafer Lug DL
2" - 48" 900 lb. Wafer Lug DL
2" - 48" 1500 lb. Wafer Lug DL

316 Stainless Steel - Retainerless Wafer Lug Body (ASTM A 351, Grade, CF8M)

Drag your finger across the table to scroll

Size Range Pressure Class Body Type Valve Style
2" - 48" 150 lb. Wafer Lug DL
2" - 48" 300 lb. Wafer Lug DL
2" - 48" 600 lb. Wafer Lug DL
2" - 48" 900 lb. Wafer Lug DL
2" - 48" 1500 lb. Wafer Lug DL

Low Carbon Steel - Retainerless Wafer Lug Body (ASTM A 352, Grade LCB)

Drag your finger across the table to scroll

Size Range Pressure Class Body Type Valve Style
2" - 48" 150 lb. Wafer Lug DL
2" - 48" 300 lb. Wafer Lug DL
2" - 48" 600 lb. Wafer Lug DL
2" - 48" 900 lb. Wafer Lug DL
2" - 48" 1500 lb. Wafer Lug DL

Alloy 20 - Retainerless Wafer Lug Body (ASTM A 351, Grade CN7M)

Drag your finger across the table to scroll

Size Range Pressure Class Body Type Valve Style
2" - 48" 150 lb. Wafer Lug DL
2" - 48" 300 lb. Wafer Lug DL
2" - 48" 600 lb. Wafer Lug DL
2" - 48" 900 lb. Wafer Lug DL
2" - 48" 1500 lb. Wafer Lug DL

Hastelloy C276 - Retainerless Wafer Lug Body (ASTM A 494, Grade CW12MW)

Drag your finger across the table to scroll

Size Range Pressure Class Body Type Valve Style
2" - 48" 150 lb. Wafer Lug DL
2" - 48" 300 lb. Wafer Lug DL
2" - 48" 600 lb. Wafer Lug DL
2" - 48" 900 lb. Wafer Lug DL
2" - 48" 1500 lb. Wafer Lug DL

Monel - Retainerless Wafer Lug Body (ASTM A 494, Grade M35-2)

Drag your finger across the table to scroll

Size Range Pressure Class Body Type Valve Style
2" - 48" 150 lb. Wafer Lug DL
2" - 48" 300 lb. Wafer Lug DL
2" - 48" 600 lb. Wafer Lug DL
2" - 48" 900 lb. Wafer Lug DL
2" - 48" 1500 lb. Wafer Lug DL

Duplex - Retainerless Wafer Lug Body (ASTM A 351, Grade CD4MCu)

Drag your finger across the table to scroll

Size Range Pressure Class Body Type Valve Style
2" - 48" 150 lb. Wafer Lug DL
2" - 48" 300 lb. Wafer Lug DL
2" - 48" 600 lb. Wafer Lug DL
2" - 48" 900 lb. Wafer Lug DL
2" - 48" 1500 lb. Wafer Lug DL

  Features

Keckley retainerless wafer lug body double disc check valves offer an inexpensive way to properly protect your pipeline against flow reversal.

The Keckley retainerless wafer lug body double disc check valve features a single cast body without pin retainer holes in the body. This design minimizes prospective leak paths through the valve body making it a preferable option for highly toxic, corrosive, or hazardous gas chemical processing applications. Keckley wafer lug body double disc check valves are also suitable for liquid, natural gas, steam service, and vacuum service applications.

Keckley double disc check valves offer a short face-to-face dimension, are lighter in weight than full body check valves, and are double disc spring loaded to provide a low cracking pressure. The design of the tension spring performs a lifting motion on the disc to prevent excessive wear on the "heel" area of the elastomer seat. The independent, dual shaft design allows interchangeability of shafts. The stop shaft stabilizes the discs during high flow rates.

Keckley offers a retainerless wafer lug body design in bronze, carbon steel, stainless steel, and other specially cast alloys. Keckley wafer lug body double disc check valves are used in both horizontal and vertical (upward) flow applications. For horizontal flow applications, the shaft should be vertically oriented to the pipeline. For vertical (upward) applications, the shaft should be perpendicular to the piping.

Keckley double disc check valves are normally stocked and available to ship immediately with Buna-n, Viton, EPDM, and metal seats. The standard discs furnished in all units are stainless steel.

Keckley double disc check valves are field serviceable without the need for special tools. They are designed to ASME specifications and conform to API 594 & 6D, as well as tested to API 598 standards.


  Catalogs


  Contact mdi

Please fill out the form below and your personal mdi product expert will email you your quote. The more information that you provide the quicker we can send you a quote. Sending an incomplete quote request could mean that we have to contact you for necessary information before sending your quote. And know that our knowledgeable sales staff is standing by to help you with your order and with any questions.

In a rush? Use our Quick Contact form to get in touch with us fast!

If you have about five minutes to spare, though, you can save time on the quoting process by filling out the form below.






Please include your contact information so that we may reply to your request. Your contact information is private and will not be sold to any third party or used negatively in any way.







mdi does not advertise prices online. The cost of products is subject to change over time. In order to extend to you the best price that we can offer, we prefer to create written and emailed quotes which reflect any discounts or promotions currently available. Some products can be quoted over the phone, and expediting quotes and orders is always available per request.

See our Terms and Conditions for more information about the mdi sales process.


Call us any time Monday through Friday 7:30 AM to 5:30 PM ET.

Phone: (727) 835-0651 | Toll Free: 800-761-4298
Fax: (813) 571-0422 | Email or Fill Out the Form Above