Products Filter Bags Micron-Rated Felt Bags

Sure-Weld Micron-Rated Welded Felt Filter Bags

The Sure-Weld felt filter bag, with our proprietary "Tri-Seal" P-flange provides a distinct advantage compared to conventional sewn filter bag with metal snap rings or industry standard poly flanges. Using state-of-the-art welding technology specifically designed to bond needle punched textile fabrics, we are able to offer the strongest most reliable welded filter bags on the market.

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Sure-Weld Micron-Rated Welded Felt Filter Bags

Technical Specifications

Filtration Performance

Specification	Detail
Available Micron Ratings (Polypropylene)	0.5*, 1T, 1, 3, 5, 10, 25, 50, 75, 100, 150, 200
Available Micron Ratings (Polyester)	0.5*, 1T, 1, 3, 5, 10, 25, 50, 75, 100, 150, 200
Available Micron Ratings (Nomex)	1, 5, 10, other microns available on request
Available Micron Ratings (Nylon)	Available on request

Materials & Compliance

Specification	Detail
Material Options	Polypropylene felt (SP), polyester felt (AP), Nomex (HT), nylon (N)
Polypropylene Chemical Compatibility	Acids: Excellent (200°F) Alkali: Excellent (200°F) Oxidizing agents: Excellent (200°F) Solvents: Average (200°F)
Polyester Chemical Compatibility	Weak acids: Good (300°F) Strong acids: Good (300°F) Weak alkali: Poor (300°F) Strong alkali: Poor (300°F) Solvents: Very good (300°F) Petroleum products: Very good (300°F)

Physical Specifications

Specification	Detail
Size Options	Size 1: 7" x 16" Size 2: 7" x 32" Size 3: 4.08" x 8"* Size 4: 4.08" x 14"* Size 25: 4" x 9"* Size 30: 4.118" x 10"* Size 50: 4" x 21"* Size 65: 4.118" x 22"*
Ring Options	P: Polypropylene P-flange M: Polypropylene M-flange PER: Polyester P-flange MER: Polyester M-flange DS: Draw string (not available in Sure-Weld) S: Carbon steel ring (not available in Sure-Weld) SS: Stainless steel ring (not available in Sure-Weld) PR: Polypropylene ring (not available in Sure-Weld) N: No ring (not available in Sure-Weld) Z: Polypropylene Z-flange (fits size 25, 50 bags only; not available in Sure-Weld)
Finish Options	S: Singed P: Plain B: Singed both sides (not available in Sure-Weld) C: Cerex cover (not available in Sure-Weld) N: Nylon mesh cover (not available in Sure-Weld)
Options	WE: Sure-Weld, HS: Handle-strap, AS: Fully stitched

Product Overview

Our Sure-Weld filters come with the security of an overlap side seam, which eliminates the "bump" that occurs with conventional sewn snap ring filters. By welding to a "Tri-Seal" P-flange our fully welded filter bags offer unparalleled seal security, which delivers superior filtrate consistency.