A fitting designation as Class 125 denotes the following: 1. Use with steam pressure is not in excess of 125 pounds. 2. Use with water when pressure is not in excess of 175 pounds. 3. Fittings are made of cast iron.
A fitting designation as Class 250 denotes the following: 1. Use with steam pressure is not in excess of 250 pounds. 2. Use with water when pressure is not in excess of 400 pounds. 3. Fittings are made of cast iron. A fitting designation as Class 150 denotes the following: 1. Use with steam pressure is not in excess of 150 pounds. 2. Use with water when pressure is not in excess of 300 pounds. 3. Fittings are made of Malleable iron. Rosemary -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of Greg McGahan Sent: Thursday, April 17, 2008 4:40 PM To: [email protected] Subject: fitting rating Does anyone know what "300 DN" means on a CI flanged fitting? OR what the max working pressure is on a 150 lb class flanged CI fitting? Thank you, Greg McGahan Living Water Fire Protection, LLC 1160 McKenzie Road Cantonment, FL 32533 850-937-1850 Fax: 850-937-1852 _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field) _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/mailman/listinfo/sprinklerforum To Unsubscribe, send an email to:[EMAIL PROTECTED] (Put the word unsubscribe in the subject field)
