该Protectoseal在线路设计压力/真空保护通风，系列号8740，使这些通风口罐内特别适合安装住宅设施。排气管可以直接排放蒸气一些适当的领域。查找发泄楼内有利于维护和消除危险的天台视察。托盘在发泄住房允许进气和蒸气逸出正常呼吸的坦克和输出。打开和关闭托盘只允许摄入量或出口救济必要保持在允许的工作压力，避免油箱损坏。
产品规格表 - PDF文件（西班牙语|中文）.
安装及维修指南 - PDF格式。（西班牙语|中文）.
尺寸2“（DN的50），3"（76.2毫米）和。4“（DN的100）。.
特别适合在内部槽的安装。.
减少昂贵的蒸发损失。负重.
通过设置实现。**%%* * ProFlow ®尺寸/选型软件.
砖利，配屋电影“气垫座位".
低泄漏托盘设计 - 。认证测试报告.
搬运方便，检查及维修。
IN-LINE PRESSURE / VACUUM CONSERVATION VENT
Series No. 8740
The design of the Protectoseal In-Line Pressure / Vacuum Conservation Vent, Series No. 8740, makes these vents particularly suited for mounting inside tank house installations. Outlet pipes can direct vapors to some appropriate area for discharge. Locating the vent inside the building facilitates maintenance and eliminates hazardous roof top inspections. Pallets in the vent housing allow intake of air and escape of vapors as the tank normally breathes in and out. Pallets open and close to permit only that intake or outlet relief necessary to remain within permissible working pressures and avoid tank damage.
- Product Specification Sheet - PDF ( Spanish | Chinese )
- Installation & Maintenance Instructions - PDF ( Spanish | Chinese )
- Sizes 2" (DN 50), 3"(76.2mm) and 4" (DN 100)
- Particularly suited for in-house tank installations
- Reduces costly evaporation losses
- Settings achieved by weight loading
- ProFlow® Sizing/Selection Software
- Patented, FEP Film "Air-Cushioned Seating"
- Low-leak pallet design - certified test reports
- Easy handling, inspection & maintenance
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