# 下水処理施設の一般的な配管問題\n\n## B2Bバイヤー向けガイド\n\n本記事は、海外の技術購買、施工会社、販売代理店、OEM/ODM顧客が、見積依頼前に必要な技術情報を整理できるように作成されています。\n\n## 配管部品: 下水処理施設の一般的な配管問題\n\n製品名だけで判断せず、配管サイズ、圧力、接続規格、材質、流体、温度、設置位置、数量、図面を確認してください。\n\n関連製品にはゴム伸縮継手、伝力継手、管継手、フランジアダプター、金属ベローズ伸縮継手、防水スリーブなどがあります。\n\n## RFQ\n\n見積を早く正確にするには、DNサイズ、圧力等級、フランジ規格、材質、使用流体、温度、数量、図面または写真を送ってください。\n\n- DN / size\n- pressure rating\n- connection standard\n- material\n- working medium and temperature\n- quantity\n- drawing, photo or specification\n\n## Quality and Packing\n\n出荷前には外観、寸法、接続面、付属部品、表示、梱包方法を確認します。試験要求は生産前に確認してください。\n\n## Project Inquiry\n\nプロジェクト用の配管部品が必要な場合は、サイズ、圧力、接続規格、材質、流体、数量、図面をお送りください。
常见问题
?What are the most common piping problems in wastewater treatment plants?
Common problems include blockages from grease and solids, leakage, hydrogen sulfide corrosion, abrasion, pipe settlement, flange misalignment, pump vibration, pressure surges, gas accumulation and insufficient equipment-removal clearance.
?Can a rubber expansion joint solve pump vibration problems?
It can help reduce the transmission of some mechanical vibration, but it cannot correct pump misalignment, cavitation, foundation movement, defective equipment or improperly supported piping.
?Which elastomer should be used for wastewater service?
Selection depends on the actual wastewater composition. EPDM may be evaluated for selected water and wastewater services, while NBR may be evaluated for selected mineral-oil media. Chemicals, temperature, solids and exposure conditions must be confirmed.
?Can rubber joints be used to eliminate water hammer?
No. Water hammer and transient pressure require review of pump controls, valve characteristics, check valves, air management, surge equipment and the complete hydraulic system.
?Why are dismantling joints used near wastewater valves?
They provide controlled installation adjustment and create axial clearance for removing valves, meters and other flanged equipment after the pipeline has been isolated, drained and independently supported.
?What information is needed for a wastewater pipeline fitting quotation?
Provide the medium and solids content, temperature, pressure, possible vacuum, nominal size, actual pipe OD, interface standard, installed length, movement, supports, materials, coating, quantity, drawings and documentation requirements.