ARMY A-A-52519-1995 SCRAPPERS (PIGS) PIPELINE CLEANING AND BATCHING (METRIC)《公制清洁及配料管道》.pdf
《ARMY A-A-52519-1995 SCRAPPERS (PIGS) PIPELINE CLEANING AND BATCHING (METRIC)《公制清洁及配料管道》.pdf》由会员分享,可在线阅读,更多相关《ARMY A-A-52519-1995 SCRAPPERS (PIGS) PIPELINE CLEANING AND BATCHING (METRIC)《公制清洁及配料管道》.pdf(4页珍藏版)》请在麦多课文档分享上搜索。
1、 A-A-52519 = 9999974 Olb81b1 996 METRIC S.eptember 13. 1995 SUPERSEDING 25 October 1983 A-A-525 19 MIL-C-14076B (ME) COMMERCIAL ITEM DESCRIPTION SCRAPERS (PIGS), PIPELINE: CLEANING AND BATCHING (METRIC) The General Services Administration has authorized the use of this Commercial Item Description (C
2、ID) for all federal agencies. 1. SCOPE. This CID covers requirements for fluid-propelled cleaning and batching scrapers, hereinafter called “pigs“, for all hydrocarbon pipelines. Cleaning pigs shall be capable of cleaning internal pipe deposits such as wax, paraffin, sludge, mud, and calcium. Batchi
3、ng pigs shall be capable of separating dissimilar fluids such as gasoline, kerosene or diesel and emptying pipelines. Pigs shall be available for 101.6 millimeter (mm) (4-inch), 152.4 mm ( distribution is uni imited. Provided by IHSNot for ResaleNo reproduction or networking permitted without licens
4、e from IHS-,-,- A-A-52519 9999974 OLb8Lb2 822 W A-A-525 19 Type II - Batching pigs. Size 1 - 101.6 mm (4-inch). Size 2 - 152.4 mm (6-inch). Size 3 - 203.2 mm (8-inch). Size 4 - 304.8 mm (12-inch). 3. SALIENT CHARACTERISTICS. 3.1 Materrals . Materials shall be in accordance with the manufacturers mat
5、erial specifications for pigs. The use of recovered material made in compliance with regulatory requirements is acceptable providing that all requirements of this CID are met (see 4.1). 3.1.1 Llissimilaretals. Dissimilar metals shall not be used in extremely close contact or having direct contact wi
6、th each other unless protected against galvanic corrosion. 3.2 D_esignanbmtmction. Cleaning pigs shall consist of a flexible shaft-body, brushes, and tapered lip cups. Whenever necessary, tempered steel springs-and brush arms shall be part of the shaft-body. Stiff wire brushes, Consisting of tempere
7、d steel bristles conforming to ASTM A229 and coated to prevent corrosion, shall be positioned to give full pipe coverage. Wheel type brushes can be used for small pigs. Batching pigs shall consist of a flexible shaft-body and tapered lip cups. Pigs shall be flexible enough to go through a 10 percent
8、 reduction in internal pipe diameter or a long radius (3 x radius) bend. The cups shall be made of medium density polyurethane material. The cups shall be dcsigned for long life, good sealing capability. and flexibility without damage to the pig or pipeline. All hardware shall be either stainless st
9、eel or zinc plated to a minimum coating thickness of 12 micrometers. Stainless steel shall have a maximum 0.03% carbon content, a minimum 16.0% chromium content and a minimum 8.0% nickel content. 3.3 Performance. The pigs shall require no more than 175 kilopascals (kPa) (25 pounds per square inch di
10、fferential psid) pressure for successful traverse through straight runs of clean pipe and 517 Wa (75 psid) through full-opening valves. The pigs shall be capable of traveling through all long radius bends. 3.4.1 Qp- perature. The element shall perform as specified herein in any ambient temperature f
- 1.请仔细阅读文档,确保文档完整性,对于不预览、不比对内容而直接下载带来的问题本站不予受理。
- 2.下载的文档,不会出现我们的网址水印。
- 3、该文档所得收入(下载+内容+预览)归上传者、原创作者;如果您是本文档原作者,请点此认领!既往收益都归您。
下载文档到电脑,查找使用更方便
10000 积分 0人已下载
下载 | 加入VIP,交流精品资源 |
- 配套讲稿:
如PPT文件的首页显示word图标,表示该PPT已包含配套word讲稿。双击word图标可打开word文档。
- 特殊限制:
部分文档作品中含有的国旗、国徽等图片,仅作为作品整体效果示例展示,禁止商用。设计者仅对作品中独创性部分享有著作权。
- 关 键 词:
- ARMYAA525191995SCRAPPERSPIGSPIPELINECLEANINGANDBATCHINGMETRIC 公制 清洁 配料 管道 PDF

链接地址:http://www.mydoc123.com/p-440081.html