4" FRP membrane housing is used for accommodating reverse osmosis membrane elements and generates a high pressure environment for reverse osmosis operation. It adopts special processing technology to make the inner surface of FRP membrane housing more smooth. What's more, polyurethane coating ensures the brightness of FRP membrane housing, white color is the standard color, other color is also available according to your requirements. More importantly, our 4" FRP membrane housing through strict 10 million times fatigue test and pressure test, so as to ensure that the product has a longer service life and higher safety. Applicable in metallurgical, electronics, health care, chemicals, food & drinking water, electric power, industrial waste water treatment, seawater desalination and many other industries. Specifications: Product name: 4" FRP membrane housing. Material: fiberglass or FRP. Surface treatment: polyurethane coated. Color: white. Other colors can be customized. Water inlet port: 3/4 inch. Water outlet port: 1/2 inch. Available working pressure: 300-1200 psi.（300 psi, 450 psi, 600 psi, 800 psi, 1000 psi, 1200 psi） Operating temperature: -7°C - 49°C. Length type: 1-6 core. Connection type: end port, side port. A white 4 inch side port FRP membrane housing is lying on the cardboard and on side is on a carton box. FMH4-2: 4" side port FRP membrane housing.A white 4 inch end port FRP pressure vessel is lying on the cardboard and one side is on a carton box. FMH4-3: White 4" end port FRP pressure vessel. Model number description: Model number description about 4 inch FRP membrane housing. 1 - Membrane housing material: FRP. 2 - Membrane housing inner diameter: 4 inches. 3 - Connection mode of inlet and outlet: end port or side port. 4 - Maximum pressure value of membrane housing: 300 psi. 5 - Membrane housing color: White (Standard color). 6 - Membrane housing length: 1 core. Sketch of 4 inch end port membrane housing cross section. Sketch of 4 inch end port membrane housing. Spare parts of 4" FRP membrane housing (end port) Item Description Material Quantity 1 Screw Stainless steel 304 4 2 Baffle Stainless steel 304 4 3 End plug ABS 2 4 Strap screw Stainless steel 304 4 5 Saddle Nature rubber 2 6 Strap Stainless steel 2 7 Shell FRP 1 8 End plug seal EPDM 2 Specifications of 4" FPR membrane housing (end port) Item Working pressure Length L S D (Outer diameter) Feed port Permeate port psi Number of core mm mm mm inch inch F40E300W-1 300 1 1130 610 112 3/4 FNPT 1/2 FNPT F40E300W-2 2 2146 1350 112 3/4 FNPT 1/2 FNPT F40E300W-3 3 3162 1960 112 3/4 FNPT 1/2 FNPT F40E300W-4 4 4178 1580 × 2 112 3/4 FNPT 1/2 FNPT F40E450W-1 450 1 1130 610 114 3/4 FNPT 1/2 FNPT F40E450W-2 2 2146 1350 114 3/4 FNPT 1/2 FNPT F40E450W-3 3 3162 1960 114 3/4 FNPT 1/2 FNPT F40E450W-4 4 4178 1580 × 2 114 3/4 FNPT 1/2 FNPT F40E600W-1 600 1 1130 610 116 3/4 FNPT 1/2 FNPT F40E600W-2 2 2146 1350 116 3/4 FNPT 1/2 FNPT F40E600W-3 3 3162 1960 116 3/4 FNPT 1/2 FNPT F40E600W-4 4 4178 1580 × 2 116 3/4 FNPT 1/2 FNPT F40E800W-1 800 1 1178 610 118 3/4 FNPT 1/2 FNPT F40E800W-2 2 2194 1350 118 3/4 FNPT 1/2 FNPT F40E800W-3 3 3210 1960 118 3/4 FNPT 1/2 FNPT F40E800W-4 4 4226 1580 × 2 118 3/4 FNPT 1/2 FNPT F40E1000W-1 1000 1 1178 610 120 3/4 FNPT 1/2 FNPT F40E1000W-2 2 2194 1350 120 3/4 FNPT 1/2 FNPT F40E1000W-3 3 3210 1960 120 3/4 FNPT 1/2 FNPT F40E1000W-4 4 4226 1580 × 2 120 3/4 FNPT 1/2 FNPT Sketch of 4 inch side port membrane housing cross section marked with numbers and letters. Sketch of 4 inch side port membrane housing. Spare parts of 4" FRP membrane housing (side port) Item Description Material Quantity 1 Screw Stainless steel 304 4 2 Baffle Stainless steel 304 4 3 End plug ABS 2 4 Strap screw Stainless steel 304 4 5 Saddle Nature rubber 2 6 Strap Stainless steel 2 7 Shell FRP 1 8 End plug seal EPDM 2 Specifications of 4" FPR membrane housing (side port) Item Working pressure Length L S D (Outer diameter) Feed port Permeate port Working pressure psi Number of core mm mm mm inch inch psi F40S300W-1 300 1 1190 610 1013 112 3/4 FNPT 1/2 FNPT F40S300W-2 2 2206 1350 2029 112 3/4 FNPT 1/2 FNPT F40S300W-3 3 3222 1960 3045 112 3/4 FNPT 1/2 FNPT F40S300W-4 4 4238 1580 × 2 4061 112 3/4 FNPT 1/2 FNPT F40S450W-1 450 1 1190 610 1013 114 3/4 FNPT 1/2 FNPT F40S450W-2 2 2206 1350 2029 114 3/4 FNPT 1/2 FNPT F40S450W-3 3 3222 1960 3045 114 3/4 FNPT 1/2 FNPT F40S450W-4 4 4238 1580 × 2 4061 114 3/4 FNPT 1/2 FNPT F40S600W-1 600 1 1190 610 1013 116 3/4 FNPT 1/2 FNPT F40S600W-2 2 2206 1350 2029 116 3/4 FNPT 1/2 FNPT F40S600W-3 3 3222 1960 3045 116 3/4 FNPT 1/2 FNPT F40S600W-4 4 4238 1580 × 2 4061 116 3/4 FNPT 1/2 FNPT F40S800W-1 800 1 1230 610 1013 118 3/4 FNPT 1/2 FNPT F40S800W-2 2 2246 1350 2029 118 3/4 FNPT 1/2 FNPT F40S800W-3 3 3262 1960 3045 118 3/4 FNPT 1/2 FNPT F40S800W-4 4 4278 1580 × 2 4061 118 3/4 FNPT 1/2 FNPT F40S1000W-1 1000 1 1230 610 1067 120 3/4 FNPT 1/2 FNPT F40S1000W-2 2 2246 1350 2083 120 3/4 FNPT 1/2 FNPT F40S1000W-3 3 3262 1960 3099 120 3/4 FNPT 1/2 FNPT F40S1000W-4 4 4278 1580 × 2 4115 120 3/4 FNPT 1/2 FNPT Note: Special specifications could be available based on customers' requirement. All above is only for reference data, not for technical specifications. Specifications are subject to change without further notice. Main technical characteristics: Pressure-resistant: 2.0-2.5 MPa. Inlet water mode: Water inlet at both ends or both sides. Structure: standard spare parts, disassemble convenient and quick. Sealing property: through high compressive test. Tissue structure at both ends: clamp type, card type, internal spring type. Features: No rusting. High strength. Easy installation. Long service life. Corrosion resistance. FRP twisted craft, durable. Smoothness and brightness. Good toughness and wear resistance. Easy operation, safety and reliability. Excellent anti-aging and anti-oxidation properties. Applications: 4" FRP membrane housing is widely used in metallurgical, electronics, health care, chemicals, medicine, electric power, industrial waste water treatment, seawater desalination and many other industries. Many white 4 inch membrane housing connect with pipes are used in water filter. FMH4-4: 4" FRP membrane housing applied in waste water treatment.Numbers of white 4 inch pressure vessel is operating in the factory. FMH4-5: 4" FRP pressure vessel for seawater desalination. Packaging: Inside package: plastic film or bubble bag. Outside package: Each one is packed with a carton, and then on wooden case or pallets. Five white 4 inch pressure vessels are fixed on the blue metal shelf, and each one is fixed with three black belts. FMH4-6: 4" FRP membrane housing in plastic bag package.Some 4 inch membrane housings are fixed on the two pallets with strong black ropes. FMH4-7: 4" FRP pressure vessel can be packed with plastic film. A number of white 4 inch pressure vessels with bubble bag package are put on the wooden pallet in order. FMH4-8: 4" FRP membrane housing packaged with bubble bag.Packaged 4 inch membrane housings in carton boxes are orderly lying on the ground, each one is packed in a carton box. FMH4-9: Outside package of 4" pressure vessel. If you are interested in our products can contact us via [email protected].