ST series ST separator cartridge is our best-selling large-size secondary separation consumable matched with JMG big-flow coalescers, belonging to core hydrophobic Coalescing Filter products for high-throughput natural gas stations. Ordinary small-size SS separators cannot satisfy ultra-large gas flow demand of main pipelines, while this dedicated large flow gas separator widens mesh layout to reduce flow resistance, perfectly block tiny liquid mist carried by post-coalescence dry gas. The permanent PTFE coating on stainless mesh achieves super liquid repellency, completely avoid liquid re-entrainment phenomenon that causes downstream instrument corrosion. All ST models compatible with large PECO and Faudi filter vessels, form two-stage separation with coalescer cartridges, classified under gas filter element product line.
Working Principle of ST Hydrophobic Separator Cartridge
Dry natural gas carrying trace micro liquid droplets passes through the ST separator cartridge. The PTFE coated stainless mesh surface repels all water and hydrocarbon droplets, only allows pure dry gas to penetrate the filter layer. All trapped liquid aggregates on outer mesh surface and flows down to vessel bottom by gravity, eliminating secondary liquid pollution of pipeline gas. This hydrophobic mechanism controls residual liquid in outlet gas below 8ppm, far superior to small-size pipeline separation filter under high gas flux working conditions.
Key Technical Specifications
Core Material: 316 stainless steel mesh with permanent PTFE hydrophobic coating
Liquid Blocking Efficiency: ≥99.95%
Max Allowable Working Pressure: 3.4 MPa
Max Service Temperature: 110℃
Matching Coalescer: PCHG, JMG large flow coalescer cartridges
Every natural gas water barrier passes hydrophobic performance aging test before shipment, customized length and end cap available for oversized filter separators, fully matching Oil & Gas Purification Equipment.
Five Core Product Strengths
1 Ultra Large Flow Adaptation
Expanded mesh structure reduces gas resistance, suitable for main pipeline ultra-high throughput scenarios.
2 Permanent PTFE Coating
No peeling after long-term high-speed gas flushing, stable water blocking performance full service life.
3 High Mechanical Strength
Multi-layer stainless skeleton resists gas impact without cartridge deformation.
4 Ultra Low Liquid Residual Output
Outlet gas liquid content controlled under 8ppm to protect precision flow meters.
5 Wide Vessel Compatibility
Standard dimensions interchangeable with large PECO/Faudi filter housings directly.
Application Range
ST separator cartridge is widely used in large gas gathering stations, long-distance trunk pipelines and LNG pretreatment plants. For industrial water treatment matching products, you can check Water Filter Element (RO & UF Membrane) and High Flow Filter.
Full ST Series All Model List
ST612FB, ST624FB, ST636FD, ST644FB, ST656FB
Other Related Products
JMG Series Large Flow Coalescer Cartridge
FAQ About ST Separator Filter
Q1 What is the advantage of ST over SS small separator?
A1 ST adopts wide mesh design for larger gas flow, specially designed for main pipeline large stations.
Q2 Does ST need to match coalescer cartridge?
A2 Yes, it is secondary separation component, must cooperate with front coalescer to reach purification standard.
Q3 Is PTFE coating wear-resistant for long service?
A3 The integrated thermal bonding PTFE layer will not fall off under continuous gas flushing.
Q4 What gas medium is ST suitable for?
A2 Natural gas, coal gas and other low-viscosity pipeline gas dehydration separation.
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