工程规格说明书范文
Sample Engineering Specification

　　所有沉淀物过滤器应该是T形筒式过滤器，其结构材料应该采用PVC类型I, ASTM D 1784分类12454或CPVC类型IV, ASTM D 1784分类23447。所有O形环材质应该是EPDM或Viton®。所有过滤器应该配置可拆卸304不锈钢过滤器筒，过滤器筒应该有网孔或强化筛网[按照下列表格指定]。在水温23^oC条件下，所有过滤器压力等级应该是200 psi，并由美国斯毕尔制造公司制造。
　　All sediment filters shall be T-Style cartridge type constructed from PVC Type I, ASTM D 1784 Cell Classification 12454 or CPVC Type IV, ASTM D 1784 Cell Classification 23447. All O-rings shall be EPDM or Viton®. All filters shall have removable Type 304 stainless steel cartridge with [specify from chart] mesh perforation or reinforced screen. All filters shall be pressure rated at 200 psi for water at 73^oF, as manufactured by Spears® Manufacturing Company.

T形筒式过滤器快速选型表
Quick View T-Style Cartridge Filters Selection Chart

特点 - PVC, CPVC
Features - PVC, CPVC

　　在线T形筒式过滤器具有大量过滤悬浮固体颗粒、污垢和碎片的能力，并可配置各种规格网孔的304不锈钢过滤筒。结构材料采用PVC或CPVC，当流量增加，需要过滤的量也增加时，这种特殊的T形结构可以容易地以细金属丝平行保护。标准流向（内部到外部）将沉淀物过滤截留在过滤筒内，但根据用户的喜好，也可提供反向（外部到内部）将沉淀物过滤截留在过滤筒外面这种方式。可提供全尺寸的TF系列或半尺寸MTF系列T形筒式过滤器，可提供国际管道标准IPS通径DN65承插连接端口 - DN80套管连接端口的进口/出口组合结构，因此可以方便地配合其他通径与缩径套管或连接件一起使用。
　　In-line T-Style Cartridge Filters provide high capacity filtration of suspended solids, dirt and debris with reusable Type 304 stainless steel filter cartridges in a variety of mesh sizes. Constructed from PVC or CPVC, this special T-style configuration may be easily ganged in parallel for increased flow and filtration capacity. Standard flow (internal-to-external) filter traps sediment inside cartridge while optional reverse flow (external-to-internal) filter traps sediment on outside of cartridge, according to user preference. Available in full-size TF Series or half-size MTF Series units with IPS size 2¹/₂" socket - 3" spigot combination inlet/outlet connection that can be easily adapted to other sizes with use of reducer bushings or couplings.

• 对工艺设备提供在线保护
  Provides In-line Protection of Process Equipment
• PVC或CPVC材质结构
  PVC or CPVC Construction
• EPDM或Viton®材质O形环密封
  EPDM or Viton® O-ring Seals
• 重型、强化的304不锈钢过滤筒，网孔规格尺寸有16，32，50，76，100，150，或200可供选择
  Heavy, Reinforced Type 304 Stainless Steel Filter Cartridges in Mesh Sizes 16, 32, 50, 76, 100, 150, or 200
• 标准（内到外）或反向流动（外到内）筒式结构备选项
  Standard (Internal-to-External) or Reverse Flow (External-to-Internal) Cartridge Design Option
• 底部过滤筒可与排放塞一起拆卸，便于清洗或与泄压阀连接
  Bottom Cartridge Removal with Drain Plug for Cleaning, or Bleed-Off Valve Connection
• 与装置平行安装，用于增加过滤能力
  Installed Units in Parallel for Increased Filtration Capacity
• 压力等级为200 psi @ 23^oC
  Pressure Rated to 200 psi @ 73^oF
• 采用无硅树脂、水溶性润滑剂组装
  Assemble with Silicone-Free, Water Soluble Lubricants

筒过滤面积
Cartridge Filtration Area

　　TF系列过滤器表面面积 = 214.9英寸²，而MTF系列过滤表面面积 = 107.5英寸²。网孔规格尺寸16和32采用穿孔不锈钢，网孔规格尺寸50至200采用不锈钢金属丝布并用穿孔不锈钢衬背和内置金属丝，用于防止过滤器瓦解或过滤网吹出。
　　TF Series filter surface area = 214.9 in.² and MTF Series filter surface area = 107.5 in.². Mesh sizes 16 and 32 are perforated stainless steel, 50 to 200 mesh filters are stainless steel wire cloth with perforated stainless backing and internal wire coil to prevent filter collapse or screen blow-out.

过滤器筒备件
Replacement Filter Cartridges