美國帕斯菲達(dá)pulsafeeder電磁計(jì)量泵LPG5EB-KTC3,加藥泵流量調(diào)節(jié)方式：脈沖+液位信號(hào)控制，泵頭材質(zhì):PVDF
*手動(dòng):頻率，沖程同時(shí)可調(diào) *流量0.5-95升/小時(shí)，壓力2-21Bar *自動(dòng)：可選4-20mA脈沖信號(hào)，液位信號(hào)接收功能 *21種機(jī)型
美國帕斯菲達(dá)pulsafeeder電磁計(jì)量泵LPG5EB-KTC3,加藥泵流量調(diào)節(jié)方式：脈沖+液位信號(hào)控制，泵頭材質(zhì):PVDF
運(yùn)行原理
隔板式計(jì)量泵用來分配化學(xué)藥品或流體。通過連接到隔板的電磁驅(qū)動(dòng)機(jī)制（電磁線圈） 來達(dá)到這一目的。當(dāng)電磁線圈受到控制回路的脈沖作用時(shí)，電磁線圈使隔板移位，通過 止回閥的作用，使流體在壓力作用下流出出口。當(dāng)電磁線圈斷電時(shí)，它使隔板回復(fù)原位， 將更多流體抽入泵頭，循環(huán)反復(fù)進(jìn)行。
泵的行程速率可通過內(nèi)部電路控制，并通過轉(zhuǎn)動(dòng)速率旋鈕予以改變。機(jī)械行程長(zhǎng)度受行程長(zhǎng)度旋鈕控制。有些型號(hào)不允許控制行程速率，因此沒有行程速率旋鈕。
結(jié)構(gòu)材料
結(jié)構(gòu)適用的濕材料（接觸泵送溶液的部件）是FPP （填充玻璃纖維的聚丙烯）、PVC （聚 氯乙烯）、SAN、海帕倫、氟橡膠、特氟綸、316不銹鋼、PVDF （聚偏氟乙稀）、陶瓷和 碳合金。這些材料極耐大多數(shù)化學(xué)藥品。但是，有些化學(xué)藥品，如強(qiáng)酸或有機(jī)溶劑，會(huì) 使某些合成橡膠和塑料部件，如隔板、閥座或泵頭等老化。
PULSAtron Series E Plus Metering Pump
504 GPD @ 20 PSI, 230 VAC4-20 mA Input with Dual Manual Control and Stop Function Input
Stroke frequency control via 4-20 mA signal input, manual stroke length control. Stroke frequency is manually adjustable when in local control. Includes stop function input.
General Description
Pulsafeeder PULSAtron Series E Plus chemical metering pumps are positive displacement, diaphragm type pumps. Output volume is adjustable while pumps are in operation from zero to maximum capacity. The PULSAtron Series E Plus contains a highly reliable timing circuit as well as circuit protection against voltage and current upsets. This pump features solenoid protection by thermal overload with auto-reset. The Series E Plus guided check valves, with their state-of-the-art seat and ball designs, provide precise seating, and excellent priming and suction lift characteristics. Our timing circuit is highly reliable and, by design, virtually unaffected by temperature, EMI and other electrical disturbances.
Pump Controls
Adjustment is by means of readily accessible dial knobs, one for changing stroke length and the other for changing stroke frequency. Both knobs are located opposite the liquid handling end. Automatic control via 4-20mA DC and stop function inputs. Auto-Off-Manual switch.
Drive Assembly
The pump drive is totally enclosed with no exposed moving parts. Electronics are housed in chemical resistant enclosure at the rear of the pump for maximum protection against chemical spillage. Average electrical power consumption is 130 Watts.
Materials of Construction
See Specifications tab. Chemical metering pump housing shall be of chemically resistant PBT thermoplastic. All exposed fasteners are stainless steel. Valve seat and seal ring are renewable by replacing the cartridge valve assembly.
Pulsafeeder PULSAtron Series E Plus Chemical Metering Pump - Key Features
- Manual Control by on-line adjustable stroke rate and stroke length.
- Highly Reliable timing circuit.
- Circuit Protection against voltage and current upsets.
- Panel Mounted Fuse.
- Solenoid Protection by thermal overload with auto-reset.
- Water Resistant, for outdoor and indoor applications.
- Indicator Lights, panel mounted.
- Guided Ball Check Valve Systems, to reduce back flow and enhance outstanding priming characteristics.
- Few Moving Parts and Wall Mountable.
- Safe & Easy Priming with durable leak-free bleed valve assembly (standard).
- Reliable metering performance.
- Rated "hot" for continuous duty.
- Leak-free, sealless, liquid end.
Includes:
A weighted foot valve/strainer assembly, a 1/2" NPT male injection fitting/back pressure check valve assembly, 4' suction tubing, 8' discharge tubing and Owners Manual
