Main performance parameters of GM series mechanical diaphragm metering pump
● maximum flow of single head: 500L / h
● maximum discharge pressure: 12bar
● regulation ratio 10:1, steady-state accuracy 2%
● suction lifting height up to 3m water column
● the maximum inlet pressure is 2 bar
● the maximum allowable material temperature is 40C
Main features of GM series mechanical diaphragm metering pump
Drive end
● variable eccentric mechanism adjustment to ensure smooth flow pulsation
● enhanced structural design, suitable for harsh operating environment
● wear resistant ball bearing makes the work more stable
● oil bath lubrication, long service life of driving parts
● the flow can be adjusted under shutdown or operation, and the adjustment mode can be manual, electric or frequency conversion
Hydraulic end
● the diaphragm is mechanically driven, and there is no diaphragm protection plate on the material side to facilitate the passage of materials
● PVC, PVDF. 316SS. High viscosity, slurry and other pump head materials, suitable for all kinds of materials
● self cleaning check valve structure
Main application
● municipal, industrial water and wastewater, swimming pool and other water treatment processes
control mode
◆ the electric stroke controller receives the external control signal and adjusts the stroke length
● power supply: 220V-50HZ single phase
● input signal: 4-20mA analog signal
● output signal: 4-20mA / 1-5V analog signal for recording, display and control system
◆ variable frequency controller, which receives external control signals and adjusts stroke speed
● power supply: 220v-50hz-single phase / 380-50hz-three phase
● input signal: 4-20mA analog signal
◆ the motor controller controls the three-phase motor in the "on / off" mode to adjust the output flow
● power supply: 200 - 240V / 50 / 60Hz / single phase
● control mode: it can accept 4-20mA analog signal, external pulse signal or manual adjustment
GM pump
Pump head material | GM0002 -GM0050 | GM0090-GM0500 | ||||||
Interface code | A | B | C | Interface code | A | B | C | |
PVC | P | 108 | 116 | 250 | Q | 127 | 159 | 322 |
PVDF | P | 108 | N | 131 | ||||
316 | N | 102 | N | 131 |
Material of main components of hydraulic end
GM0002-GM0500
Material of hydraulic end | Valve body | Valve seat | Valve ball | The diaphragm | Seal ring | Connect |
PVC | PVC | PVDF | Zirconia | PTFE | FPM/EPDM*/Fluorinated* | PVC |
PVDF | PVDF | PVDF | Zirconia | PTFE | FPM/EPDM*/Fluorinated* | PVDF |
316SS | 316SS | 316SS | 316SS | PTFE | FPM/EPDM*/Fluorinated* | 316SS |
Model definition of GM series mechanical diaphragm metering pump
Series
Code | Describe |
GM | GM series mechanical diaphragm metering pump |
Flow
Code | Maximum flow(L/h) | Maximum pressure (bar) | Number of strokes(min¯¹) | electric machinery(kw) |
GM0002 | 2.25 | 12 | 36 | 0.25● 0.37■ |
GM0005 | 4.5 | 36 | ||
GM0010 | 9 | 36 | ||
GM0025 | 25 | 72 | ||
GM0050 | 50 | 10 | 144 | |
GM0090 | 85 | 7 | 72 | |
GM0120 | 115 | 72 | ||
GM0170 | 170 | 144 | ||
GM0240 | 235 | 144 | ||
GM0330 | 315 | 5 | 144 | |
GM0400 | 400 | 144 | 0.37 | |
GM0500 | 500 | 180 |
●This power is used for three-phase constant speed, explosion-proof motor ■This power is used for single-phase, explosion-proof, variable-frequency motor
Hydraulic end
Code | Describe | Code | Describe |
P | PVC Hydraulic end | V | High viscosity application: PVC hydraulic end |
S | 316 Hydraulic end | K | Slurry application:GM0025-0500 |
T | PVDF Hydraulic end | M | Mixture application, GM: PVDF hydraulic end |
F | Application of sodium hypochlorite in PVC hydraulic end◆ | Z | Special material hydraulic end, please consult factory, and explain when ordering |
◆EPDM O-ring
Interface:
Code | Describe | GM0002-0050 | GM0090-0500 | ||||
PVC | PVDF | 316 | PVC | PVDF | 316 | ||
P | NPT threaded connection | 1/2”F | 1/2”F | 1/2”F | 1/2”F | 1/2”F | 1/2”F |
Q | Hard tube intubation interface of inner tube orifice | DN15 | —— | —— | DN15 | —— | —— |
R | Hose connection | 6×12▲ | 6.35×9.52★ | —— | —— | —— | —— |
H | GM hose for high viscosity applications | 12×18 | —— | —— | 20×28 | —— | —— |
X | Special interface | Please consult factory and explain when ordering |
Note: the parameters in red are standard configuration. If there are no special options for high viscosity pump head V, slurry pump head K and mixture pump head m, the interface shall be selected according to the material of hydraulic end.
The length of PVC hose is 6m / piece; One hose is configured by default. The factory is not equipped with injection valve, bottom valve, counterweight and Teflon hose. Please order extra and inquire from the factory.
Electric machinery:
Code | Describe |
1 | 0.25kW, 1EC71,three-phase 380V,50Hz, 1440rpm, IP55/F |
2 | 1/3P,NEMA56C,three-phase 380V,50Hz, 1440rpm, NEMA3/TEFC |
3 | 0.37kW, IEC71,three phase explosion proof 380V,50Hz,1440rpm, IP55/F, dIIBT4 |
4 | 0.37kW, IEC71,three-phase 380V,50Hz, 1440rpm,IP55/F |
5 | 0.25kW, IEC71,three-phase 220V, 50Hz,1440rpm, IP55/F |
6 | 0.25kW, 1EC71,three phase frequency conversion 380V, 50Hz, 1440rpm, IP55/F, IC416 |
7 | 0.37kW, IEC71,three phase frequency conversion 380V, 50Hz, 1440rpm, IP55/F, IC416 |
8 | ———————— |
9(5) | The pump is not equipped with motor, and iec71 interface is reserved |
9(6) | 0.37kW, 1EC71,single-phase 220V,50Hz, 1440rpm, IP55/F |
9(8) | ———————— |
9 | For other motors, please consult factory |
Adjust:
Code | Describe | Remarks |
M | Manual stroke adjustment | Standard configuration |
N | Electric stroke adjustment,4- 20mA, 1PH- 50Hz-220V | —— |
E | ———————— | —— |
F | Frequency conversion control | —— |