Spiral Wound Element with GRP Outerwrap and Brine Seal

• Customization: Available
• Membrane Type: Spiral
• Type: RO
• Feed Spacer: Ladder Type
• Stable Rejection: 99.5%
• pH Continuous: 3-11
• Construction: Spiral Wound Element with GRP
• Transport Package: Wooden Box
• Specification: 8042
• Trademark: RisingSun
• Origin: China
• HS Code: 84219990
• Production Capacity: 500 Pieces/Month

Product Description

RisingSun Membrane's Spacer Tube (ST) Module can be used for sea water desalination and waste water treatment. We can offer either reverse osmosis or nanofiltration membrane sheet in order to deal with different kinds of waste water.  

Special Membrane Feed Spacer

We use a very special ladder type feed spacer, which only come into marginal contact with their neighbouring membrane sheet. In this way, the spacers are able to minimise the resistance that is exerted on the feed flow.
This special design also greatly reduces the build up of fouling materials compared with common element.



Special Configuration with flow direction
 

Color Instruction Green: Feed Wate Blue: Permeate Red: Seals and O-rings On this ST module the feed is from the top. The feed water is diffused by the top seal plate to send the feed water evenly around the top of the membrane element. The feed water flows down through the membrane element, as it does pure water permeates and flows out thourgh centre collection device into the space around the tie rod and flows down to the permeates outlets. The concentrated feed water is channelled by the bottom seal plate to the bottom HP connection and out of the module.

Features
1. Spacer tube (ST) module is high strength design, up to 120 bar operating pressure.
2. Open feed spacer with low flow resistance and concentration polarization.
3. Spiral wound structure with more membrane area. 
4. Membrane is long using life.
5. Competitive price and fast delivery.
6. Cross replacements: Nanostone (Rochem), Pall.

STRO Membrane element specification (operation pressure 120bar)
 

Type	STRO-H
Model	STRO5-8042-H	STRO6-8042-H
Membrane sheet type	RO5	RO6
Effective membrane area (m^2)	27
Construction *	Spiral Wound Element with GRP Outerwrap,Brine Seal
Feed flux range (m^3/h)	5.5-12
Recommend flux (m^3/h)	10
Permeate flux ** (m^3/d)	24	20
Nominal rejection ** (%)	99.5	99.6
Minimum rejection (%)	99.0	99.0
Feed spacer	Special open type (ladder type)
Element Dry Weight	20kgs
Max. element pressure drop (bar)	1.0
Max. operation pressure (***bar)	120
Max. operation temperature (ºC)	45
pH continuous operation	3-11
pH CIP	2-12
Chlorine tolerance (ppm)	≤0.1

Brine seal to be installed in flow direction on the low pressure side/element outlet side.
** RO5, RO6 test condition: 32,000mg/l NaCl solution at 55bar applied pressure, 8% recovery, 25ºC, pH=8;  There may have about ±15% change for individual module flow rate. Performance specifications shown above are nominal values. Individual module permeate flow rate may vary based on inlet water condition. 
*** Liquid temperature should less than 30ºC at 120bar pressure.
Note: We could offer any membrane sheet to make ST membrane module, for example, STRO4-8042-H, etc.





 

Model	STRO-8042-H
Total tie rod length A (mm)	1305
Flange interval B (mm)	1230
Flange width C (mm)	240
Inlet & outlet connections (inch)	1 inch grooved coupling
Permeate connection (mm)	2 x G3/8"-90° elbow for 9mm  hose

Applications

Sea Water
Industrial Waste water
Traditional spiral wound RO/NF concentrates.
Landfill leachate







Why us?

1. Our Spacer Tube (ST) modules use high quality membrane sheet from USA.
(BW & SW membrane sheet), which can obtain a 99.5% rejection rate based on 120bar operation pressure.

2. We make membrane module in China, our cost is competitive.

3. We offer OEM service.

4. We have large production capacity so fast delivery.

5. Our ST module was used in the largest project in China, more than 2,000 pieces. The performance is very good.