UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

close
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

close
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

CSA/AM - ANSI Z21.22

Relief Valves for Hot Water Supply Systems

inactive
Buy Now
Organization: CSA/AM
Publication Date: 1 April 1999
Status: inactive
Page Count: 46
scope:

PREFACE

This publication represents a basic standard for safe operation, substantial and durable construction, and acceptable performance of relief valves for hot water supply systems. It is the result of years of experience in the manufacture, testing, installation, maintenance, inspection and research on relief valves for hot water supply systems. There are risks of injury to persons inherent in appliances that, if completely eliminated, would defeat the utility of the appliance. The provisions in this standard are intended to help reduce such risks while retaining the normal operation of the appliance.

Nothing in this standard is to be considered in any way as indicating a meacure of quality beyond compliance with the provisions it contains. It is designed to allow compliance of relief valves for hot water supply systems, the safety construction and performance of which may exceed the various provisions specified herein. In its preparation, recognition has been given to possibilities of improvement through ingenuity of design. As progress takes place, revisions may become necessary. When they are believed desirable, recommendations or suggestions should be forwarded to the Chairman of Accredited Standards Committee Z21/83, 8501 East Pleasant Valley Road, Cleveland, Ohio 44131, or the Chairman of (Interim CSA) Gas Equipment Standards Steering Committee , 178 Rexdale Boulevard, Etobicoke, Ontario, Canada M9W 1R3.

Safe and satisfactory operation of relief valves for hot water supply systems depends to a great extent upon its proper installation, use and maintenance. It should be installed, as applicable, in accordance with the National Fuel Gas Code, ANSI Z223.1; the Natural Gas Installation Code, CANICGA-B149.1; the Propane Installation Code, CAN/CGA-R149.2.

Users of this American National Standard/CSA Standard are advised that the devices, products and activities within its scope may be subject to regulation at the Federal, Territorial, Provincial, state or local level. Users are strongly urged to investigate this possibility through appropriate channels. In the event of a conflict with this standard, the Federal, Territorial, Provincial, state or local regulation should be followed.

THIS STANDARD IS INTENDED TO BE USED BY THE MANUFACTURING SECTOR AND BY THOSE APPLYING THE EQUIPMENT AND BY THOSE RESPONSIBLE FOR ITS PROPER INSTALLATION. IT IS THE RESPONSIBILITY OF THESE USERS TO DETERMINE THAT IN EACH CASE THIS STANDARD IS SUITABLE FOR AND APPLICABLE TO THE SPECIFIC USE THEY INTEND.

Document History

January 1, 2015
Relief valves for hot water supply systems
A description is not available for this item.
January 1, 2015
Relief valves for hot water supply systems
This Standard applies to the following types of relief valves constructed entirely of new, unused parts and materials: a) combination temperature and pressure relief valves for use on storage tanks...
Relief Valves for Hot Water Supply Systems
This standard applies to the following types of relief valves constructed entirely of new, unused parts and materials: a. Combination temperature and pressure relief valves for use on storage tanks...
Relief Valves for Hot Water Supply Systems
PREFACE The standards set forth herein apply to the first edition of the Standard for Relief Valves for Hot Water Supply Systems, ANSI Z21.22-1999 · CSA 4.4-M99, and Addenda ANSI Z21.22a-2000 · CSA...
January 1, 2001
Relief Valves For Hot Water Supply Systems
This standard applies to the following types of relief valves constructed entirely of new, unused parts and materials: a. Combination temperature and pressure relief valves for use on storage tanks...
Relief Valves for Hot Water Supply Systems
PREFACE The standard set forth herein apply to the first edition of the Standard for Relief Valves for Hot Water Supply Systems, ANSI 221.22-1 999 . CSA 4.4-M99, and supersede corresponding...
RELIEF VALVES FOR HOT WATER SUPPLY SYSTEMS
The standard set forth herein apply to the first edition of the Standard for Relief Valves for Hot Water Supply Systems, ANSI Z21.22-1999 · CSA 4.4-M99, and supersede corresponding standards therein....
January 1, 2000
RELIEF VALVES FOR HOT WATER SUPPLY SYSTEMS
PREFACE The standard set forth herein apply to the first edition of the Standard for Relief Valves for Hot Water Supply Systems, ANSI Z21.22-1999 · CSA 4.4-M99, and supersede corresponding standards...
April 1, 1999
Relief Valves for Hot Water Supply Systems
This standard applies to the following types of relief valves constructed entirely of new, unused parts and materials: a. Temperature relief valves and combination temperature and pressure relief...
Relief Valves for Hot Water Supply Systems
This standard applies to the following types of relief valves constructed entirely of new, unused parts and materials: a. Temperature relief valves and combination temperature and pressure relief...
ANSI Z21.22
April 1, 1999
Relief Valves for Hot Water Supply Systems
PREFACE This publication represents a basic standard for safe operation, substantial and durable construction, and acceptable performance of relief valves for hot water supply systems. It is the...
January 1, 1999
RELIEF VALVES FOR HOT WATER SUPPLY SYSTEMS
PREFACE This publication represents a basic standard for safe operation, substantial and durable construction, and acceptable performance of relief valves for hot water supply systems. It is the...
January 1, 1990
Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems
A description is not available for this item.
January 1, 1986
Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems Sixth Edition
PREFACE This publication represents a basic standard for safe operation, substantial and durable construction, and acceptable performance of gas-fired gravity and fan type floor furnaces. It is the...
January 1, 1984
RELIEF VALVES AND AUTOMATIC GAS SHUTOFF DEVICES FOR HOT WATER SUPPLY SYSTEMS
PREFACE The standards set forth herein apply to the fifth edition of the Standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22-1979, and Addenda,...
January 1, 1983
RELIEF VALVES AND AUTOMATIC GAS SHUTOFF DEVICES FOR HOT WATER SUPPLY SYSTEMS
PREFACE The standards set forth herein apply to the fifth edition of the Standard for Relief Valves and Automatic Gas Shutoff Devices for Hot Water Supply Systems, ANSI Z21.22-1979, and superesede...
January 1, 1979
RELIEF VALVES AND AUTOMATIC GAS SHUTOFF DEVICES FOR HOT WATER SUPPLY SYSTEMS FIFTH EDITION; ADDENDA Z21.22A - 1983, ADDENDA Z21.22B - 1984
PREFACE This publication represents a basic standard for safe operation, substantial and durable construction, and acceptable performance for relief valves and automatic gas shutoff devices for hot...

References

Advertisement