Re: Rim Pull - Sizing Manual Valve Actuators

From: <adolphus.o.omodu@exxonmobil.com>
Date: Wed Mar 09 2005 - 03:23:00 EST

Paul,

API 6D specifies a maximum force of 360N to be applied at the valve handwheel with the proviso that the handwheel diameter does not exceed valve face-to-face or end-to-end dimension or 1000mm whichever is smaller. This is the code requirement irrespective of the operator's size.

Regards,

Adolphus O Omodu
Projects Department/Design Engg.
Rm 6A06 Mobil House
Exxonmobil
E-mail: adolphus.o.omodu@exxonmobil.com
Telephone: 234(01)-2621640 Ext. 2524
Telephone: 1-713-431-8500 Ext. 2524

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                       Paul Bowers
                       <pbowers@pipingdesign          To:     


"PipingDesign@yahoogroups.com" <PipingDesign@yahoogroups.com>

                       .com>                          cc:
                                                      Subject: [PipingDesign] Rim

Pull - Sizing Manual Valve Actuators

                       09/03/05 02:09
                       Please respond to
                       PipingDesign

This subject also has a possible OSHA connection for back injury compensation claims.

What is the nominal rim pull for globe/gate valve handwheels as experienced by those of you that specify them? Assuming that an operator could be a 98lb weakling or a 275lb trained gorilla, what is appropriate?

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