Protectoseal 52500系列人孔緩解壓力和真空蓋，同時(shí)提供緊急救濟(jì)和真空壓力減輕時(shí)，一個(gè)儲(chǔ)存罐人孔安裝。在緊急情況下（火的坦克外部的參與），正常的通風(fēng)裝置可能太小，以防止油箱超壓。該系列號(hào)52500提供了必要的泄壓能力，以保持在一個(gè)安全的工作范圍罐。
產(chǎn)品規(guī)格表 - PDF格式。（西班牙語|中文）.
安裝及維修指南 - PDF格式。（西班牙語|中文）“通過24（DN的400）”（DN的600）.
尺寸16。
通風(fēng)口直接到大氣中。
設(shè)置達(dá)到負(fù)重。
Reseats自動(dòng)。
ProFlow ®尺寸/選型軟件。
磚利，配屋電影“氣墊座位”.
低泄漏托盤設(shè)計(jì) - 。認(rèn)證測(cè)試報(bào)告。
與歐洲ATEX 94/9/EC指令符合。
EMERGENCY PRESSURE / VACUUM MANHOLE COVER VENT
Series No. 52500
Protectoseal Series No. 52500 Manhole Cover with pressure and vacuum relief, provides both emergency pressure relief and vacuum relief when installed on the manhole of a storage tank. In emergency situations (external fire involvement of the tank), normal venting devices may be too small to prevent overpressurization of the tank. The Series No. 52500 provides the necessary pressure relief capacity to maintain the tank in a safe operating range. The integral vacuum vent provides additional protection against tank collapse due to excessive vacuum in the vapor space..
- Product Specification Sheet - PDF ( Spanish | Chinese )
- Installation & Maintenance Instructions - PDF ( Spanish | Chinese )
- Sizes 16" (DN 400) through 24" (DN 600)
- Vents directly to atmosphere
- Settings achieved by weight loading
- Reseats automatically
- ProFlow® Sizing/Selection Software
- Patented, FEP Film "Air-Cushioned Seating"
- Low-leak pallet design - certified test reports
- Conforms with European ATEX Directive 94/9/EC
