Pulsafeede 4至20 mA的步伐泵，500加侖，230 VAC

提供精確可靠的計(jì)量性能制導(dǎo)雙止回閥座位和優(yōu)良的吸和吸程

PVC及PTFE構(gòu)造與外部控制

非常適于水處理和化學(xué)飼料應(yīng)用

手動(dòng)控制泵特性可調(diào)風(fēng)率和長(zhǎng)度

包括：注塑/背壓閥總成，腳踏閥/過(guò)濾器組件，三功能閥，4英尺明確的PVC管材，和8英尺硬的聚乙烯排放管。所有115 VAC泵包括一個(gè)6英尺的美國(guó)插頭電源線，230 VAC泵包括一個(gè)6英尺電源線（不包括插頭）。服務(wù)套件（單獨(dú)出售，并在每個(gè)表中列出）包括閥芯O型圈，頭，隔膜，二次O型圈，頭螺釘，墊圈.4至20 mA泵有4至20 MADC直接或自動(dòng)控制體外起搏，可靠的計(jì)時(shí)電路，停止功能，以及手動(dòng)調(diào)節(jié)的中風(fēng)發(fā)生率和長(zhǎng)度。通過(guò)選擇適當(dāng)?shù)脑O(shè)置“自動(dòng)-關(guān)-手動(dòng)”開關(guān)，在自動(dòng)或手動(dòng)模式下運(yùn)行泵。電路保護(hù)防止電壓和電流紊亂。泵可安裝在室內(nèi)或室外。

4 to 20 mA pace pumps, 500 GPD, 230 VAC

Reliable metering performance—guided dual check valves provide precise seating and excellent priming and suction lift

PVC and PTFE construction with external control

Ideal for water treatment and chemical feed applications

All pumps feature manual control of stroke rate and stroke length

What's included: injection/back pressure valve assembly, foot valve/strainer assembly, three-function valve, 4-ft clear PVC tubing, and 8-ft stiff polyethylene discharge tubing. All 115 VAC pumps include a 6-ft power cord with U.S. plug; 230 VAC pumps include a 6-ft power cord (plug not included). Service kits (sold separately and listed in each table) include valve cartridges with O-rings, head, diaphragm, secondary O-ring, head screws, and washers.The 4 to 20 mA pumps feature automatic control with 4 to 20 mADC direct or external pacing, reliable timing circuits, stop function, and manually adjustable stroke rate and length. Operate pump in automatic or manual mode by selecting the proper setting on the "Auto-Off-Manual" switch. Circuit protection guards against voltage and current upsets. Install pumps indoors or outdoors.