Non listed materials such as special alloys and plastics are not covered by this Standard and are subject to agreement between customer and manufacturer.
6.5 The seal of the sealed bonnets, when specified by the customer, shall be designed to contain line pressure or vacuum in the event of diaphragm failure.
9.3 Handwheels shall be marked with the direction of movement for opening the valve.
I tend to like a firmer action, and I found the SP88X's decent but light for my taste.
The content of this Standard Practice is the result of the efforts of competent and concerned volunteers to provide an effective, clear, and non-exclusive specification that will benefit the industry as a whole.
(1.6 mm) for sizes 10 and smaller, and.Copyright Manufacturers Standardization Society of the Valve and Fittings Licensed by Information Handling Services.C) Aluminum diaphragm valves shall conform in wall sections and end flanges to the dimensions specified in asme B16.34 for steel.(3 mm) for sizes 10 and smaller and.0 asme American Society of Mechanical Engineers Thee Park Avenue New York, NY 1O016-5990 ansi American National Standards Institute, Inc.This Standard Practice covers the following: Pressure-Temperature Ratings and Design requirements Commonly Used Diaphragm Pressure Limitations Body, Bonnet, and Bolting Materials Commonly Used Face-to-Face Dimensions for Flanged Valves Body End Connections and Wall Thicknesses Actuator Application Requirements Tests Marking.(1.6 mm) to the dimensions listed for All-Metal Valve Bodies.The existence of an MSS Standard Practice does not in itself preclude the manufacture, sale, or use of products not conforming to the Standard Practice.MSS, standard practice, sP-88, this MSS Standard Practice was developed under the consensus of the MSS Technical Committee 406 and the MSS Coordinating Committee.I like it a lot!In this Standard Practice all notes, annexes, tables, and figures are construed to be essential to the understanding of the message of the standard, and are considered part of the text unless noted as supplemental.
My Best Wurly.-49.
(2.4 mm) for sizes 10 and smaller, and.0.16.