Keystone Fig AR1/AR2

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This Product has been Discontinued.  Please Contact FloSource for a Replacement

General Application

Ideally suited for many high performance applications, such as fire protection, water treatment, cooling systems, food and beverage and bulk product handling. Consult us for appropriate materials for specific services.

Keystone Fig AR1 & AR2 Brochure

Technical Data

Size Range :

Figure AR1 (wafer style) 2 thru 36-inch
Figure AR2 (lugged style) 2 thru 24-inch

Flange Standard :

ANSI Class 125/150


 Part Standard Material Material Specification Optional Material
 1. Body Cast iron ASTM A-126, Class B Carbon steel
 Ductile iron ASTM A-395 GR 60/40/18 Stainless steel
 2. Disc Ductile iron ASTM A-536 GR 65/45/12
 Aluminum bronze ASTM B-148, UNS C95200 Grade A
 316 Stainless steel ASTM A-743, CF8M
 3. Stem 316 Stainless steel (2 thru 12-inch) ASTM A-276 UNS S31600
 18-8 Stainless steel (14 thru 20-inch) ASTM A-276 UNS S30400
 17-4 PH Stainless steel (24 thru 36-inch) ASTM A-564 UNS S17400 Phosphate treated steel
 (2 thru 20-inch) ASTM A-108 UNS G10450
 4. Seat NBR food grade (0°F thru 212°F) Fluoroelastomer (FKM)
 EPDM food grade (-40°F thru 250°F) White NBR
 5. Upper stem bushing Polyester (2 thru 20-inch) Bronze (24 thru 36-inch)
 6. Stem packing NBR
 7. Torque plug (2 thru 12-inch) 316 Stainless steel ASTM A-276 UNS S31600 condition A
 7. Disc screws (14 thru 20-inch) 316 Stainless steel ASTM F-593 Group 2 condition CW1
 7. Taper pins (24 thru 36-inch) 17-4 PH Stainless steel ASTM A564 UNS S17400 H1075
 8. Bearings (2 thru 12-inch) Sintered metal

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