I. Product Positioning (Model + Function + Support)
The HZT023219000 rotor housing is a key fixture in the HZT 25MBA marine vacuum discharge pump. Its core function is to create a stable high-vacuum chamber and provide precise coaxial rotation for the rotor HZT021265401. This housing mates with multiple components within the 25MBA series:
* Front: Mate with the HZT023200210 End Plate Suct. Chamber (suction side)
* Rear: Mate with the HZT023280030 Flange (shaft seal end flange/rear flange)
* Axial sealing/locating: Mate with the HZT038281900 Shaft Seal (shaft seal) and the HZT023260400 Distance Sleeve (distance sleeve)
* This housing has a specific geometry and interface for the 25MBA and is not interchangeable with the 15MBD series.
II. Materials and Manufacturing
* Material: Marine-grade 316 stainless steel, offering corrosion resistance, strength, and fatigue resistance, suitable for marine and shore-based environments subject to high humidity, salt spray, and oily contaminants. * Manufacturing: CNC machining of the entire blank (inner bore, end face, seal groove, and flange face are all performed in a single process of positioning and finishing), ensuring inner roundness, end face accuracy, and concentricity.
* Surface: The inner wall is smooth, enhancing the stability of the gas-liquid mixed flow; the outer surface can be sandblasted or electropolished upon order to enhance corrosion resistance and cleanability.
* Dimensional Stability: Controlled assembly datums ensure low vibration and high sealing performance even when mated with the dynamically balanced rotor (HZT021265401).
III. Structure and Technical Features
1. High Vacuum Sealed Chamber
O-ring seals are reserved on the inner bore and end face, working in conjunction with the HZT038281900 (shaft seal) and corresponding O-rings to create a stable negative pressure chamber.
2. Coaxial and Axial Positioning
Compatible with the HZT023260400 (spacer sleeve) to control axial clearance; the flange surface of the HZT023280030 (rear flange) ensures coaxiality between the motor shaft, rotor, and housing.
3. Heavy-Duty/High-Flow Compatibility
Compatible with the increased rotor length and spiral geometry of the HZT021265401, it is suitable for vacuum pumping applications requiring higher flows and torques (multi-chamber systems and long-distance pipeline networks) than the 25MBA.
4. Maintenance-Friendly
Standardized flange and seal design facilitates periodic disassembly and inspection; it is compatible with other 25MBA series components, minimizing downtime.
IV. Application Areas
* Marine & Yacht Vacuum Discharge / Sanitation Systems (Blackwater/Graywater Vacuum Collection)
* Offshore Platforms: Offshore Vacuum Collection Unit, Rig Sanitation Module
* Ports/Shore-Based Systems: Harbor/Port Vacuum Station, Ship-to-Shore Discharge
* Land-Based Vacuum Toilet Systems: Land-Based Vacuum Toilet / Sewage Collection (Residential, Campsite, Scenic Area, Transportation Hub)
> Combined with HZT021265401 (Rotor), HZT023280030 (Flange), HZT023200210 (End Plate), HZT038281900 (Shaft Seal), etc.
> This constitutes the key assembly of the 25MBA pump head, maintaining extremely low noise, low vibration, and high vacuum in high-load operating environments both at sea and on land.
V. Selection and Maintenance Recommendations (Simple and Practical)
* Specificity: Compatible only with HZT 25MBA geometry and interfaces; not interchangeable with 15MBD.
* Assembly: It is recommended to strictly follow the 25MBA process diagram to control axial clearance and seal ring compression, and verify coaxiality.
* Maintenance: Periodically inspect O-rings and shaft seal HZT038281900 for wear and aging. If abnormal vibration is detected, verify rotor dynamic balancing and bearing condition.
* Retrofit/Replacement: In EVAC/JETS system upgrades and retrofits, this product can be used as a housing base component for 25MBA solutions, provided that the interfaces and flange surfaces are compatible with adapters.
VI. Technical Support and Supply
HZTは機器一式、システム設計、付属品サービスを提供しています：
* 船舶用真空ポンプと下水用真空ポンプステーションの包括的なソリューション
* OEMシステムと造船所サポート
* 迅速な部品供給と修理サービス
テクニカルサポートEメール 📧：SJDT1199@gmail.com
公式ウェブサイト：www.vacuumtoiletparts.com
1.HZT029151001 - フラップバルブシート
2.HZT037302200 - フラップバルブディスク
3.HZT029151003 - プレッシャープレート
4.HZT029150310 - サクションチャンバーカバー
5.HZT037219210 - Oリング
6.HZT029150320 - サクションチャンバー
7.HZT020202900 - 六角ソケットシール
8.HZT029151900 - ロックナット
9.HZT029150400 - 回転刃
10.HZT029150500 - 固定ブレード
11.HZT029152401 - スプリングワッシャ付き半ネジ六角ボルト (M10x170)
12.HZT029150601 - エンドフランジ
13.HZT029150701 - ローター（インペラ）
14.HZT029150800 - ローターハウジング
15.HZT029151800 - スペーサー
16.HZT038201500 - シャフトシール
17.HZT034507420 - ホースクランプ
18.HZT034507500 - ホース
19.HZT029150391 - シャフトシールフランジ
20.HZT029150901 - 圧力チャンバー（放水チャンバー）
21.HZT029150310-02 - 吸引カバー（金属プレート）
22.HZT029150450 - カッターアセンブリ
23.HZT/- - モーター - 2.2kW - マリンモーター
24.HZT029015001 - 15MBD 真空ポンプ
25.HZT023280061 - フラップバルブシート
26.HZT037302100 - フラップバルブディスク
27.HZT023280091 - プレッシャープレート
28.HZT023280050 - サクションチャンバーカバー
29.HZT037219260 - Oリング
30.HZT023280070 - フランジファスナー
31.HZT023280080 - フランジ
32.HZT023280040 - サクション・チャンバー
33.HZT020202900 - プラグ
34.HZT020203100 - 回転ブレード
35.HZT020203100 - 固定ブレード
36.HZT021201000 - ブレードホルダー
37.HZT036202010 - 半ネジ六角ボルト（スプリングワッシャ付） M12x220
38.HZT023200210 - サクションチャンバーエンドプレート
39.HZT023219000 - ローターハウジング
40.HZT021265401 - ローター（インペラ）
41.HZT021217000 - RG 3/8インチプラグ
42.HZT023219000 - 圧力チャンバー（排出チャンバー）
43.HZT023260400 - アイソレーション・スリーブ
44.HZT038218900 - シャフトシール
45.HZT023280030 - シャフトシールフランジ
46.HZT023280050-02 - サクションチャンバーカバー（メタルシート）
47.HZT/- - モーター - 3.0 kW - マリンモーター
48.HZT023280010 - 25 MBA 真空ポンプ
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