| Connect Follow us on Twitter Like us on Facebook
About | Subscribe | Advertise


C150/A21.50-02 ANSI Standard for Thickness Design of Ductile-Iron Pipe

All Standards | AWWA Standards
Search Standards

Click to Purchase and Download this Standard or Test Method

Revision Date:
Updated On: October 22, 2013
Editorial Change:
This standard covers the thickness design of ductile iron pipe complying with the requirements of ANSI/AWWA C151/A21.51, Ductile Iron Pipe, Centrifugally Cast, for Water. Included are: an outline of the design procedure and an example; and, the basis of design or design method. The bulk of the standard comprises tables that list thicknesses for standard laying conditions and certain depths of cover, water working pressure, working pressures and maximum depths of cover for standing laying conditions and standard pressure classes, and special thickness classes of ductile iron pipe. The major revisions in this edition of ANSI/AWWA C150/A21.50-96 include the following: the format has been changed to AWWA standard style; the acceptance clause (Sec. I.C) has been revised to approved wording; the truck load equation (Eq. 5) and the surface load factor (Eq. 6) have been modified to allow for a correct distribution of units; Table 6, surface load factors for a single truck on unpaved road, has been changed to match the revised surface load factor equation (Eq. 6); and, the statement concerning surge allowance in the hoop stress formula (Sec. 4.1.2 and Sec. 4.2.2) has been modified to note that if anticipated surge pressures are other than 100 psi (689 kPa), the actual anticipated pressure should be used.

(Back to all Standards)


Novatek Corporation
Novatek Corporation, Dustless Coatings Removal

Strip, clean and profile all dust free! Comply with new lead standards. Contact today: (866) 563-7800

Dampney Co., Inc.
High Temperature White Paint

New Coating with not yellow, remains white and will withstand temperatures up to 1,200ºF

W Abrasives - Surf Prep Pack

Experts in surface preparation are not working only on greens. To discover the SURF PREP PACK dedicated to experts. Visit our website,

Avalotis Corporation
Choose experience. Choose quality. Choose safety.

Avalotis Corporation has been meeting and exceeding clients’ specifications and expectations for almost 50 years. The first name in painting and protective coatings: Avalotis.


The Next Generation
of Blasting

• Lightest
• Coolest
• Most Comfortable
• Most Dependable

Vector Technologies Ltd.
The Original Performance Proven Vacuum Solutions

Vecloader DV 145, 350hp 6200 CFM & 28’’hg. For those big jobs, choose Vector for the most powerful trailer mounted vacuum in the industry today. 800-832-4010, 414-247-7100.

SAFE Systems, Inc.
SAFE Systems'
Blast Lights &
Deadman Switches

Halogen or LED blast lights available with our NEW urethane bumper. Switches available in many colors for color coding your hoses.

Graco Inc.
Saves up to 80% of energy costs

• Smooth, low pulsation
• No air motor = no more icing
• First of its kind approved for
  hazardous locations
e-Xtreme™ Electric Airless Sprayer Learn more

NLB Corporation
NLB Sure Shroud: Greater Protection and Flexibility

NLB’s Sure Shroud’s lighter weight and flexibility reduces operator fatigue and offers unmatched protection against high pressure hose ruptures. 10k to 40k psi rated.

Technology Publishing

The Technology Publishing Network

The Journal of Protective Coatings & Linings (JPCL) PaintSquare
Durability + Design Paint BidTracker

EXPLORE:      JPCL   |   PaintSquare News   |   Interact   |   Buying Guides   |   Webinars   |   Resources   |   Classifieds
REGISTER AND SUBSCRIBE:      Free PaintSquare Registration   |   Subscribe to JPCL   |   Subscribe to PaintSquare News
MORE:      About   |   Privacy policy   |   Terms & conditions   |   Site Map   |   Search   |   Contact Us

© Copyright 2000-2016, Technology Publishing / PaintSquare, All rights reserved
2100 Wharton Street, Suite 310, Pittsburgh PA 15203-1951; Tel 1-412-431-8300; Fax 1-412-431-5428; E-mail