Danfoss BFP 21(Size 3)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,燃燒器停機即刻斷油,容量約 24 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 3 Solenoid Valve Shut-off Oil Pump | 24 L/h Household Burner
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- Danfoss BFP 21 Size 3 Solenoid Valve Shut-off Oil Pump | 24 L/h Household Burner
Product Information
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water treatment
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- Water softener (calcium and magnesium ion removal)
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- Pre-backwash filter
- UV ultraviolet sterilizer
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- Various tanks for water treatment
- Various application filter media
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Suitable for supplying fuel to small 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 3 Solenoid Valve Shut-off Oil Pump | 24 L/h Household Burner
丹麥 original factory, solenoid valve life up to 250,000 cycles or 10 years, journal conforms to EN 225
小型燃燒器要求停機即刻斷油,且不想另配管路電磁閥
小型柴油燃燒器在熄火瞬間若斷油不夠俐落,易造成噴嘴滴油與積碳;若能由泵端自帶切斷,可簡化管路配置。Danfoss BFP 21 在 BFP 20 基礎上內建一組電磁閥,達成停機即刻斷油。
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;電磁閥通電時開啟、送油至噴嘴。燃燒器停機、線圈斷電時電磁閥立即關閉,切斷噴嘴供油。多餘油於雙管回到回油口、單管內部回到齒輪組。
BFP 21 單段型的設計特色
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、前方調壓,壓力 7–20 bar(出廠 10±1 bar),軸頸 EN 225。Bio100 版可相容至 100% 生質柴油。注意電磁閥不可朝下安裝。
同型比較:BFP 20/BFP 21/BFP 52E/LE-S
BFP 20 無電磁閥、切斷需外接;BFP 21 內建電磁閥切斷;BFP 52E 為兩段式;BFP 21 LE-S 另具預熱防滴安全切斷。本頁為 Size 3(約 24 l/h),Size 5 見 BFP 21 Size 5.
Application scenarios and system pairings
BFP 21 Size 3 適用小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。
丹麥原廠,電磁閥壽命達 25 萬次或 10 年,軸頸符合 EN 225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 3:約 24 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 | 2400–3450 min⁻¹ |
| 油溫 | 0–70°C |
| 環境/運輸溫度 | −20~+70°C |
| 線圈耗電 | 9 W |
| 額定電壓 | 230 V,50/60 Hz(其他電壓需訂製) |
| 線圈防護 | 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 |