| Reference | STK:03.11.4063.01 |
| Date | 7/15/2012 |
| Location | Middle East |
| Scope | Required for suction and discharge lines of crude pumps air operating gate valves with pneumatic actuators complete as the following: Item 001 QTY=6, gate valve size 30" with pneumatic actuator complete Item 002 QTY=20, gate valve size 20" with pneumatic actuator complete Item 003 QTY=12, gate valve size 16" with pneumatic actuator complete Valve specifications: Valve type: wedge gate valve Type of connection: flanged ends raised face Class: 150 Number of holes for flange size 30”: 28 Number of holes for flange size 20”: 20 Number of holes for flange size 16”: 16 Face to face for valve size 30”: (24") Face to face for valve size 20”: (18") Face to face for valve size 16”: (16") Material: Body bonnet: ASTM a216 wcb Stem, wedge & seat: ASTM a 182 f304 Flange material: ASTM a: 105 Flange sizes 16" & 20" according to ASME b 16.5 and Size 30" according to ASME b 16.1 Actuator specifications Pneumatic actuator Air working pressure at site: 60 psi Max setting torque at 60 psi Required torque for valve size (30"): 590 nm Required torque for valve size (20"): 153 nm Required torque for valve size (16"): 153 nm Opening time for valve size 30" = 164 sec Opening time for valve size 20" = 120 sec Opening time for valve size 16" = 96 sec Max air consumption in cubic mater / min For valve size 30" = 5.4 For valve size 20" = 3.4 For valve size 16" = 3.4 Notes: approximate wight (30 ton) Required materials: 1 - insurance policy 2 - original certificate 3 - third party inspection 4 - spare parts for two years for pneumatic actuator showed in a separated list. 5 - operating, maintenance and spare parts must be provide in three copies in English language. |
