・ 连接时使用提供的规定尺寸的管道。管道连接要牢固，防止化学药品泄漏和空 气进入。由于配件中使用塑料螺母，因此不可过度拧紧配件，即只能用手拧紧。 NPT (美国标准锥管螺纹)吸入阀和排放阀决不可拧得过紧。NPT吸入阀和排 放阀只能拧紧到25-35英寸磅(4.5-6.3 kg/cm)。
・ 如果使用放气阀组件.则应可靠地连接-条回流管路(软管).回流管路连接回 到储罐。要避免化学药品可能造成的伤害，没有安装回流管路前决不要尝试使 用放气阀启动。
・ 如果泵是架式安装，或安装在储罐顶上，进口软管应尽可能短。
・ 提供-台背压/注入阀以保持计量性能。标准注入阀中的弹簧典型地增加17-20 PSI ( 1.17 - 1.38 BAR)到管路压丿力上，H8泵除外，这种泵增加8-10 PSI(.55-.69 BAR)。注入阀必须安装在排放管路中。*好的方法是将注入阀安装在化学药 品注入点。
・ 如果排放管会暴露于直射阳光，应使用黑色管来代替随泵提供的标准白色半透 明管。如需要黑色管，请与供应商联系。
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
