JANUS Series SEKO SEKO Pneumatic Double Diaphragm Pump
JANUS series pneumatic double diaphragm pumps provide a variety of pump head sizes, materials and seals for users to choose from. Whether it is highly corrosive acid, or high viscosity paint and adhesive, can be transported, the application is extremely wide.
reliability
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100% water-based media test before leaving the factory: dead head, starting and sealing
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All plastic air system: durable and corrosion resistant under harsh conditions
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Dry run, no damage to pump or system: no seal design
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Maintenance: Easy and fast maintenance without any special tools
Security
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Can provide conductive plastic pump (PVDF + carbon fiber pump head)
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Special exhaust design: designed for low noise operation
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Submerged installation: can be completely sunk into the medium to be transported according to fluid compatibility
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Full bolt construction: provides the best sealing and safety
Features
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Adjustable flow and pressure, simple adjustment method, no complex operation
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Portable, compact, multi-occasion use, optional cart
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Can transport fluids containing solid particles: ideal for transporting corrosive and high viscosity media
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Special air system: no lubricating oil, no stall, no icing
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A variety of pump head sizes and materials can be selected, suitable for conveying different fluids under various working conditions
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High performance: high flow rate through optimized pump body design
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Maximum self-suction height (dry suction) six meters: suitable for suction applications
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Efficient valve structure design: low air consumption
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Import and export connection can be customized, perfect to meet the installation requirements of different occasions
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Safety "dead head" function to prevent damage to the pump due to outlet blockage
| performance characteristics | |
| Pump head material | PP, PVDF, aluminum, SS316L, POM |
| Flow Range | 7 l/min -880 l/min |
| maximum pressure | 6-7-8(bar) |
| Connection Dimensions | 1/4 -- 3" |
| maximum lift | 6-70-80(m) |
| diaphragm | NBR, EPDM, PTFE, HaiCi, Shandao rubber |
| valve ball | NBR, EPDM, PTFE, SS316L |
| O-ring | NBR, EPDM, PTFE, FPM |
technical parameters:
| Model | flow | Connection Size [BSP] | maximum lift | maximum pressure | Maximum self-priming height | Maximum delivery solid body particle diameter |
maximum viscosity | Displacement per cycle | Maximum cycle speed | |
| L/min | fluid | gas | m | bar | dry/Wet | mm | CPS | cubic centimeter | times/minute | |
| JO007 ******* AB80 | 7 | 1/4" | 4 | 60 | 6 | 2/7 | 2 | 5,000 | 15 | 470 |
| JO018 ******* AB80 | 18 | 3/8" | 6 | 70 | 7 | 3/9 | 2.5 | 10,000 | 35 | 520 |
| JO030 ******* AB80 | 33 | 1/2" | 6 | 70 | 7 | 3/9 | 3 | 15,000 | 60 | 550 |
| JO060 ******* AB80 | 65 | 1/2" | 1/4" | 80 | 8 | 4/10 | 3.5 | 20,000 | 192 | 340 |
| JO090 ******* AB80 | 100 | 3/4" | 1/4" | 80 | 8 | 4/10 | 4 | 15,000 | 400 | 250 |
| JO120 ******* AB80 | 120 | 1" | 1/4" | 80 | 8 | 4/10 | 4 | 25,000 | 400 | 300 |
| JO170 ******* AB80 | 190 | 1" | 1/4" | 80 | 8 | 4/10 | 7.5 | 35,000 | 964 | 197 |
| JO250 ******* AB80 | 220 | 11/4" | 1/4" | 80 | 8 | 4/10 | 7.5 | 35,000 | 1,122 | 196 |
| JO400 ******* AB80 | 300 | DN40-11/2" | 1/2" | 80 | 8 | 4/10 | 8 | 40,000 | 2,278 | 133 |
| JO700 ******* AB80 | 650 | DN50-2" | 3/4" | 80 | 8 | 4.5/10 | 8.5 | 50,000 | 5,900 | 220 |
| JO1K0 ******* AB80 | 880 | DN80-3" | 3/4" | 80 | 8 | 5/10 | 10 | 55,000 | 7,000 | 125 |
Model Code:
| Series | |||||||||||||
| J | JANUS Series Pneumatic Double Diaphragm Pump | ||||||||||||
| Configuration | |||||||||||||
| O | standard | ||||||||||||
| N | external control type, without solenoid valve | ||||||||||||
| Y | external control type, with solenoid valve | ||||||||||||
| Series | flow | Connection Size [BSP] | maximum lift | maximum pressure | Maximum self-priming height | Maximum delivery solid body particle diameter |
maximum viscosity | Displacement per cycle | Maximum cycle speed | ||||
| L/min | fluid | gas | m | bar | dry/Wet | mm | CPS | cubic centimeter | times/minute | ||||
| 007 | 7 | 1/4" | 4 | 60 | 6 | 2/7 | 2 | 5,000 | 15 | 470 | |||
| 018 | 18 | 3/8" | 6 | 70 | 7 | 3/9 | 2.5 | 10,000 | 35 | 520 | |||
| 030 | 33 | 1/2" | 6 | 70 | 7 | 3/9 | 3 | 15,000 | 60 | 550 | |||
| 060 | 65 | 1/2" | 1/4" | 80 | 8 | 4/10 | 3.5 | 20,000 | 192 | 340 | |||
| 090 | 100 | 3/4" | 1/4" | 80 | 8 | 4/10 | 4 | 15,000 | 400 | 250 | |||
| 120 | 120 | 1" | 1/4" | 80 | 8 | 4/10 | 4 | 25,000 | 400 | 300 | |||
| 170 | 190 | 1" | 1/4" | 80 | 8 | 4/10 | 7.5 | 35,000 | 964 | 197 | |||
| 250 | 220 | 11/4" | 1/4" | 80 | 8 | 4/10 | 7.5 | 35,000 | 1,122 | 196 | |||
| 400 | 300 | DN40-11/2" | 1/2" | 80 | 8 | 4/10 | 8 | 40,000 | 2,278 | 133 | |||
| 700 | 650 | DN50-2" | 3/4" | 80 | 8 | 4.5/10 | 8.5 | 50,000 | 5,900 | 220 | |||
| 1K0 | 880 | DN80-3" | 3/4" | 80 | 8 | 5/10 | 10 | 55,000 | 7,000 | 125 | |||
| Connection Mode | |||||||||||||
| 1 | BSP thread (metal ring) | ||||||||||||
| 2 | flange (or BSP threaded flange) | ||||||||||||
| 4 | Dual BSP Connection | ||||||||||||
| 5 | NPT thread (metal ring) | ||||||||||||
| 6 | flange (or NPT threaded flange) | ||||||||||||
| 7 | Dual NPT connection | ||||||||||||
| Pump head material | |||||||||||||
| P | PP carbon fiber | ||||||||||||
| K | PVDF carbon fiber | ||||||||||||
| M | POM | ||||||||||||
| S | SS316L | ||||||||||||
| A | Aluminum | ||||||||||||
| gas diaphragm | |||||||||||||
| H | Haili | ||||||||||||
| M | Mountain Road Rubber | ||||||||||||
| D | EPDM | ||||||||||||
| N | NBR | ||||||||||||
| Fluid Diaphragm | |||||||||||||
| X | without "T" diaphragm | ||||||||||||
| T | PTFE | ||||||||||||
| valve ball | |||||||||||||
| T | PTFE | ||||||||||||
| S | SS316L | ||||||||||||
| D | EPDM | ||||||||||||
| N | NBR | ||||||||||||
| tee | |||||||||||||
| P | PP | ||||||||||||
| K | PVDF | ||||||||||||
| S | SS316L | ||||||||||||
| A | Aluminum | ||||||||||||
| M | POM | ||||||||||||
| Z | PE-UHMW | ||||||||||||
| O-ring | |||||||||||||
| V | FPM | ||||||||||||
| D | EPDM | ||||||||||||
| N | NBR | ||||||||||||
| T | PTFE | ||||||||||||
| import and export | |||||||||||||
| AB | Standard (A-Absorption/B-Drainage) | ||||||||||||
| market | |||||||||||||
| 0 | the West | ||||||||||||
| 8 | China | ||||||||||||
| customization | |||||||||||||
| 0 | standard | ||||||||||||
| J | O | 007 | 1 | P | N | T | N | P | T | AB | 8 | 0 | |
Case Studies
Municipal Wastewater Treatment · JANUS — Application Case
Project Overview
The site is the inlet, biological and outlet stages of a municipal plant. The customer wanted JANUS properly configured on the existing plant, with the aim of air-operated double-diaphragm transfer with the JANUS range.
Technical Challenges
What actually causes trouble is high solids and corrosive fractions, with large diurnal flow swings, and effluent parameters drift and probes foul with sludge and biofilm. All of this means the JANUS configuration has to involve selected by flow, head, diaphragm material and air-valve type.
Configuration
Supply and installation were organised through the AODD series: AODD solution matched to air supply and pumped medium. On site this meant selected by flow, head, diaphragm material and air-valve type, checked line by line against: stable compliance with Grade 1A discharge limits and online data reporting.
Performance
After commissioning the outcome is fewer failures in harsh duty, noticeably reducing downtime, and the readings are now used for process tuning.
Food & Beverage · JANUS — Application Case
Site Conditions
This is a Food & Beverage customer whose plant is at dosing, pasteurising, filling and CIP stages. The main task was air-operated double-diaphragm transfer with the JANUS range.
The Problem
The difficulty lies in syrups, dairy and beverages that scale easily, under strict hygienic requirements; at the same time frequent cleaning demands instruments that withstand hot CIP/SIP caustic cycles. Specification therefore means selected by flow, head, diaphragm material and air-valve type.
What We Did
We took a AODD series approach — AODD solution matched to air supply and pumped medium. Delivery was built around selected by flow, head, diaphragm material and air-valve type, with point-by-point checks on: food-safety and hygienic design per 3-A / EHEDG.
Operating Outcome
In service the system performs as intended — fewer failures in harsh duty, noticeably reducing downtime, with routine maintenance falling noticeably.
Chemical & Pharmaceutical · JANUS — Application Case
Application Context
reactors, metering vessels and finished-product tanks is a typical Chemical & Pharmaceutical duty. The project started from JANUS, focusing on air-operated double-diaphragm transfer with the JANUS range.
Process Constraints
corrosion plus Ex protection shortens instrument life and makes downtime costly, and highly corrosive media with solvents and crystallisation, partly in explosive atmospheres only amplify it. The JANUS specification must therefore cover selected by flow, head, diaphragm material and air-valve type.
Delivery Approach
Delivery was handled as the AODD series — AODD solution matched to air supply and pumped medium. Execution centred on selected by flow, head, diaphragm material and air-valve type, together with Ex certification and GMP traceability of records.
Field Results
Operation shows the benefit clearly — fewer failures in harsh duty, noticeably reducing downtime, with confidence in this measuring point improving markedly.
Power & Energy · JANUS — Application Case
Customer Profile
The typical setting in Power & Energy is boiler feedwater, turbine condensate and FGD/DeNOx systems. The measuring point is JANUS; the focus is air-operated double-diaphragm transfer with the JANUS range.
Key Difficulties
Conditions are high temperature and pressure with both steam and saline water and, on top of that, drift under high temperature and pressure, with very costly unplanned outages, which a standard configuration cannot handle for long. The design therefore starts with selected by flow, head, diaphragm material and air-valve type.
Implementation
The scope ran through the AODD series: AODD solution matched to air supply and pumped medium. Technically it hinges on selected by flow, head, diaphragm material and air-valve type, and on these requirements: compliance with power-industry codes and unit availability targets.
Customer Benefit
In practice this means fewer failures in harsh duty, noticeably reducing downtime, which cut the workload on the site maintenance team.