? 連接時使用提供的規定尺寸的管道。管道連接要牢固，防止化學藥品泄漏和空 氣進入。由于配件中使用塑料螺母，因此不可過度擰緊配件，即只能用手擰緊。 NPT (美國標準錐管螺紋)吸入閥和排放閥決不可擰得過緊。NPT吸入閥和排 放閥只能擰緊到25-35英寸磅(4.5-6.3 kg/cm)。
? 如果使用放氣閥組件.則應可靠地連接-條回流管路(軟管).回流管路連接回 到儲罐。要避免化學藥品可能造成的傷害，沒有安裝回流管路前決不要嘗試使 用放氣閥啟動。
? 如果泵是架式安裝，或安裝在儲罐頂上，進口軟管應盡可能短。
? 提供-臺背壓/注入閥以保持計量性能。標準注入閥中的彈簧典型地增加17-20 PSI ( 1.17 - 1.38 BAR)到管路壓丿力上，H8泵除外，這種泵增加8-10 PSI(.55-.69 BAR)。注入閥必須安裝在排放管路中。*好的方法是將注入閥安裝在化學藥 品注入點。
? 如果排放管會暴露于直射陽光，應使用黑色管來代替隨泵提供的標準白色半透 明管。如需要黑色管，請與供應商聯系。

PULSAtron Series E Plus Metering Pump

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