Danfoss BFP 21(Size 5)為單段家用燃燒器油泵,內建一組電磁閥提供噴嘴管路切斷,停機即刻斷油,容量約 42 l/h,相容輕油、煤油與生質柴油摻配,卡匣式濾網、可 1/2 管路操作。
PRODUCT INFORMATION
Danfoss BFP 21 Size 5 Solenoid Valve Shut-off Oil Pump | Medium-sized Domestic Burner 42 l/h
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- Danfoss BFP 21 Size 5 Solenoid Valve Shut-off Oil Pump | Medium-sized Domestic Burner 42 l/h
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Suitable for supplying fuel to medium-sized household diesel burners and boilers; the pump has a built-in solenoid valve for shut-off; both single-pipe and dual-pipe systems are compatible. Danfoss BFP 21 Size 5 Solenoid Valve Shut-off Oil Pump | Medium-sized Domestic Burner 42 l/h
Original 丹麥, with a built-in solenoid valve for immediate shut-off upon shutdown. Size 5, larger capacity, compatible with up to 100% biodiesel (Bio100 version).
中型燃燒器要求較高流量,且泵端能自帶俐落切斷
中型柴油燃燒器供油流量較高,若泵端能自帶切斷、停機即刻斷油,可簡化管路並抑制滴油。Danfoss BFP 21 Size 5 以較大容量與內建電磁閥對應此需求。
電磁閥切斷的運作機制
燃油由吸入口經卡匣濾網進入齒輪組加壓,經含膜片之調壓閥穩定噴嘴壓力;電磁閥通電開啟送油,停機斷電即刻關閉切斷。多餘油於雙管回到回油口、單管內部回到齒輪組。
BFP 21 Size 5 的設計特色
與 Size 3 相同機制、較大齒輪容量(約 42 l/h)。內建電磁閥(9 W、230 V、IP 40),核可壽命 25 萬次或 10 年。卡匣式濾網 11 cm²/200 µm、壓力 7–20 bar(出廠 10±1 bar),軸頸 EN 225。
同型比較:Size 3 與 Size 5
本頁為 Size 5(約 42 l/h);較小流量見 BFP 21 Size 3。若切斷可由管路電磁閥集中負責,改選 BFP 20。容量選擇應對應噴嘴需求,避免過度放大齒輪容量。
Application scenarios and system pairings
BFP 21 Size 5 適用中型家用柴油燃燒器與鍋爐供油,單管與雙管皆可,泵端自帶切斷。
丹麥原裝,內建一組電磁閥提供停機即刻切斷,Size 5 較大容量,可相容至 100% 生質柴油(Bio100 版)技術講解
| project | content |
|---|---|
| Type | 單段家用燃燒器油泵,內建一組電磁閥(噴嘴管路切斷) |
| capacity | Size 5:約 42 l/h(@4.3 cSt, 10 bar, 2800 min⁻¹) |
| 適用燃料 | 輕油、煤油及其生質摻配;DIN EN 51603-1、DIN EN 51603-6/-8 及 EN 14214(Bio100 版可至 100% FAME/UCOME) |
| 切斷 | 電磁閥;燃燒器停機、線圈斷電即刻斷油 |
| 管路系統 | 單管或雙管 |
| 壓力範圍 | 7–20 bar(1.3 cSt 上限 12 bar、1.8 cSt 上限 15 bar) |
| 出廠設定壓力 | 10 ±1 bar |
| 運作黏度 | 1.8–12 cSt(最低 1.3 cSt) |
| 進油/回油耐壓 | ≤ 2 bar |
| 濾網 | 卡匣式,11 cm²/200 µm |
| 轉速 | 1400–3450 min⁻¹ |
| 油溫 | 0–70°C |
| 線圈耗電 | 9 W;額定 230 V,50/60 Hz;防護 IP 40 |
| 電磁閥壽命 | 25 萬次或 10 年(核可壽命) |
| 安裝 | 法蘭;軸頸依 EN 225;電磁閥不可朝下安裝 |
| 進/回油口 | G 1/4;噴嘴出口 G 1/8;壓力/真空錶孔 G 1/8 |
| weight | 淨重約 1.06 kg |
| certified | DIN CERTCO、SEMKO 電氣安全;RoHS/LVD 宣告 |