Spiral pH Stable NF Membrane for Acid and Caustic Recovery, Model: NF6-8040

• Membrane Type: Spiral
• Type: NF
• Membrane Material: Composite
• Mwco: 200-400 Dalton
• Operation Pressure: 15-35 Bar
• Length: 40inch
• Model NO.: NF-8040
• Acid: 15% H2so4
• Caustic: 20% Naoh
• Acid Resistance: 5% HCl
• Transport Package: Pallet
• Specification: 2540/4040/8040
• Trademark: RisingSun
• Origin: China
• HS Code: 84219990
• Production Capacity: 500piece / Month

Product Description

Membrane Characteristics:
We use Composite nanofiltration membrane in a spiral wound configuration, with superior pH and temperature stability.

Operating Limits:
• Maximum operating pressure for NF6-8040 is 510 psi (35 bar).
Actual operating pressure is dependent upon system flux rate, as well as feed, recovery and temperature conditions.
• Permeate Pressure: Maximum allowed permeate pressure is 3 psi (0.2 bar).
• Differential Pressure: Maximum differential pressure limit is 10 psi (0.7 bar) per element.
Maximum differential pressure for any length vessel is 50 psi (3.5 bar).
• Temperature: Maximum operating temperature is 65°C.
• pH: Allowable range for continuous operation is 0-14.

When a stainless steel permeate tube is used, corrosive acids should be avoided.

Cross replacement refer: 
SelRO® MPS-34 - pH Stable Membrane

Feed channel spacers: 31 mil and 46 mil 

Feed Flow Rate: Maximum and minimum flow rate are as follows:
2540 Minimum 2 gpm (7.5 liter/min) ; Maximum 5 gpm (19 liter/min)
4040 Minimum 6 gpm (22 liter/min) ; Maximum 17 gpm (65 liter/min)
8040 Minimum 25 gpm (95 liter/min); Maximum 75 gpm (285 liter/min)
Actual feed flow rate is dependent upon system flux rate, feed characteristics, fouling tendency and system design:

Lubricants: For element installation, use only water or glycerin to lubricate seals.
The use of petroleum or vegetable-based oils or solvents may damage the element and will void any warranty.

Dimensions:

Why us:
1. We use high quality membrane sheet and automatic rolling machine to promise high & steady membrane performance.
2. We have rich membrane application experience.
3. Our NF membrane element is cross replacement for brand Koch, Synder, Microdyn Nadir, Nanostone, DOW etc.
4.We offer OEM service.
5. Competitive price and fast delivery.
6. Free testing sample is available.




Our Team: