Secured Trading Service

Secured Trading Service

What is STS?

STS is an escrow service that protects both buyers and suppliers. Funds are held securely by Made-in-China.com until order terms (e.g., delivery, quality) are fulfilled

Key Advantages

Payment Protection:
Your payment is only released to the supplier after you confirm satisfactory delivery.Suppliers receive payment only upon your approval.
Dispute Resolution:
If issues arise (e.g., quality discrepancies, shipping delays), our team mediates and facilitates resolutions based on evidence.
Flexible Payment Options:
Supports credit cards (Visa/MasterCard), PayPal, Apple Pay, Google Pay, many local payment methods and T/T (bank transfer).

500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks

Product Details
Customization: Available
Certification: CE
Salt Rejection Rate: 99.0%
Shipping
Shipping Cost: Contact the supplier about freight and estimated delivery time.
Online Trading Protection
Payment Guarantee
T/T PayPal ApplePay GooglePay visa mastercard american express discover JCB diners club PIX SPEI OXXO PSE OZOW Platform-protected payments with refund support for eligible order issues.
Platform Logistics
Clearer shipment tracking with platform-supported logistics.
Inspection Service
Optional pre-shipment inspection for quality and quantity checks.
After-Sales & Dispute Handling
Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Gold Member Since 2026

Suppliers with verified business licenses

Audited Supplier Audited Supplier

Audited by an independent third-party inspection agency

to see all verified strength labels (19)
  • 500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
  • 500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
  • 500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
  • 500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
  • 500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
  • 500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
Find Similar Products
  • Overview
  • Specification
  • Packing & Delivery
  • Company Profile
  • FAQ
Overview

Basic Info.

Model NO.
500LPH
Application
Industry
Auto Type
Auto/ Manual
HS
8421219990
Material
Stainless Steel
Voltage
380V 50Hz 3 Phase/ 220V 60Hz 3phase
Transport Package
Wooden Box
Specification
500LPH
Trademark
longwell
Origin
China

Packaging & Delivery

Package Size
149.00cm * 70.00cm * 168.00cm
Package Gross Weight
320.000kg

Product Description

500LPH RO Reverse Osmosis Water Filter System With 3 Stainless Steel Tanks
Reverse osmosis process uses semi permeable spiral wound membranes to separate and remove dissolved solids, organic, pyrogens, sub micron colloidal matter and bacteria from water. Feed water isdelivered under a pressure of approximately 16 kg/cm2 through reverse osmosis membranes. Waterpermeates the minute pores of the membrane and is delivered as purified water. Impurities in the water are concentrated in the reject stream and flushed to drain. Reverse osmosis is capable of removing 90-99% of total dissolved solids (TDS), 99% of organic, including pyrogens, and 99% bacterials in the feed water.
500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
Specification
NET water flow
0.5T/H
Filter Cartridge Configuration
Quartz sand + activated carbon +PP cotton + RO membrane
Trademark
longwell
Pretreatment Tank Material
stainless steel
Applicable Voltage
220V/380V (Customized)
Weight
320kg
Origin
Shandong, China
Inlet Water Pressure
0.1- 0.4MPa
500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
 RO Pure Water Equipment Process Flow Diagram
This flow chart shows the complete water-making process of single-stage reverse osmosis pure water equipment. Raw water is stored in the raw water tank first, then passes through a booster pump to go through quartz sand filter, activated carbon filter, resin softener and micron filter for pretreatment step by step. After that, water is pressurized by a high-pressure pump and sent into RO reverse osmosis membranes for deep desalination filtration. The produced pure water is sterilized by a UV sterilizer, stored in the pure water tank, and finally output as qualified pure water steadily. This whole process can effectively remove sediment, residual chlorine, limescale, heavy metals, bacteria and other impurities in water.
500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
Application range of water treatment equipment
Power industry:
boiler make-up water, cooling dam;
Electronic industry:
semiconductor industry ultra pure water, integrated circuit cleaning water, formula water;
Food industry:
formula water and production water;
Hospital industry:
process water,preparation water,washing water,injectionwater, sterile water preparation;
Beverage industry:
formula water, production water, washing water;
Chemical industry:
production water and wastewater treatment;
Drinking water engineering:
ultra pure water preparation and drinking water purification;
Petrochemical Industry:
advanced treatment of oilfield injection water and petrochemical wastewater;
Desalination of sea water:
production and living water in island areas, coastal water shortage areas, ships, sea water oil fields, etc;
Environmental protection field:
recovery of precious metals and water in electroplating rinse water to achieve zero or micro discharge.
500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
Packing & Delivery
500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
We provide one-stop export packaging and logistics services for global projects, featuring secure packaging, safe transport and on-time delivery. 
We offer durable standard export packaging, including film wrapping and wooden cases, with professional forklift loading. Sea, air and land shipping options are all available. 
Every step from packing to container loading is strictly standardized. With reliable logistics and rich export experience, we guarantee safe and timely shipment worldwide.
Company Profile
Weifang LongWell Machinery Co.,Ltd
Weifang LongWell Machinery Co.,Ltd ,established in 2022,isa professional engaged in the research development, sale and service of reverse osmosis 
water filtration system, sea water desalination system,bottle and sachet water system, cup water system, bottle blowing system.Weare located in 
Weifang with convenient transportation access. Dedicated to strict qualitycontroland thoughtful customer service, our experienced staff members are alwaysavailable todiscuss your requirements and ensurefull customer satisfaction.In addition, we haveobtained CE.Selling well in all cities and provinces around China, our products are also exported to clients in such countriesand regions as USA, Canada, Europe,Africa, South America, Southeast Asia and the Middle East. We also welcome OEM and ODM orders. Whether selecting a current product from our catalog or seeking engineering assistance for your application, you can talk to our customer service center about your sourcing requirements.
500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
500lph RO Reverse Osmosis Water Filter System with 3 Stainless Steel Tanks
FAQ
Q1:Are you trading company or manufacturer ?: Does it work with phone cases?
A: Yes, we are a manufacture with designing, manufacturing, marketing and exporting.We are found in 2007 with CE and ISO 9001,we have 3300 square meters of our own workshop.

Q2: What's the information you need to know before order?
A: what's your raw water ?
B: what's the capacity per hour of the equipment ?
C: What's the application of purifier water ?
Q3: Which machine should I choose?
A: It depends on your raw water quality and your requirements.

Send your message to this supplier

*From:
*To:
*Message:

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now
Send Inquiry
Chat Now