Document Details
Name of Department/Committee : WRD 14
Document Number : WRD 14 ( 27793)
Document Title [English] : CRITERIA FOR STRUCTURAL DESIGN OF PENSTOCK GUIDELINES PART 3 SPECIALS FOR PENSTOCKS First Revision of IS 11639 Part 3
Document Title [Hindi] : पेनस्टॉक का संरचनात्मक डिजाइन करने के लिए मानदंड — दिशानिर्देश भाग 3 पेनस्टॉक्स के लिए विशेष (IS 11639 भाग 3 का पहला पुनरीक्षण)
Document Type : Revision
Language : English
Priority : 3
ICS Code : 93.160
Date of Project Approval : 26-03-2025
Standards to be Revised :
Sl.No. Is No & Year
1 IS 11639 : Part 3: 1996
Standards to be Superseded :
Sl.No. Is No & Year
1 IS 11639 : Part 3: 1996


Classification Details
Group : Civil Engineering Design and Construction
Sub Group : Hydraulic and other related structures
Sub Sub Group : Water Conductor Systems
Aspects : Code of Practice
Risk : Low
Certification : Not Certifiable
Short Commom Man's Title :
ITCHS Code :
Ministry :
  • Ministry of Jal Shakti - Department of Water Resources, River Development and Ganga Rejuvenation
Sustainable development Goals :
Degree of Equivalence : Indigenous
Identical/Equivalent Standards :
Organization Type:

Sl.No. Synosis Points
1 Different types of specials like bends, reducers, expansion joints, etc, are used in steel penstocks carrying water from surge tanks or reservoirs to the power houses. This standard covers the structural design aspects of such specials taking into account the important hydraulic parameters involved. This standard is published in three parts: Part 1 Surface penstocks, Part 2 Buried/ embedded penstock and Part 3 Specials for penstocks. This standard was first published in 1996, and this revision has been brought out to bring the standard in the latest style and format of the Indian Standards. Further, the document has been reviewed to incorporate issued amendments and make necessary editorial corrections. The equation for the calculation of r_x has been corrected.

Timeline Details


S.No. P-Draft
Completion Date
WC-Draft
Completion Date
Final-Draft
Completion Date
Project
Completion Date(Gazette)
Entered By Entered On
1 26-03-2025 26-08-2025 10-11-2025 25-03-2026 Mr. NAVDEEP YADAV 26-03-2025