{ "@context": "https://schema.org", "@type": "Product", "name": "Metal Structured Packing 500Y/700Y - Wire Gauze & Perforated Plate", "description": "Metal structured packing in 500Y and 700Y models for vacuum distillation, precision rectification, and separation of thermally sensitive materials. SS304/304L/316/316L, high specific surface area up to 700 m²/m³, low pressure drop, manufactured to customer tower drawings.", "brand": {"@type": "Brand", "name": "FXSINO"}, "sku": "FS-MSP-500-700", "image": "/storage/uploads/images/202608/21/IMG_MSP_HERO.jpg" } Figure 1: 500Y/700Y metal wire gauze structured packing — disc segments ready for column installation. Metal Structured Packing Manufacturer | 500Y/700Y Metal Packing Manufacturer Brief: FXSINO is a metal structured packing manufacturer supplying 500Y and 700Y models in SS304, 304L, 316, and 316L. These high-specific-surface-area packings are engineered for vacuum distillation, thermal-sensitive separation, and precision rectification where low pressure drop and high theoretical plate count are critical . 1. What Is Metal Structured Packing? Metal structured packing is a high-efficiency mass transfer device fabricated from thin metal sheets (typically 0.1–0.2 mm thick) of stainless steel, carbon steel, aluminum, or titanium. Each sheet is precision-stamped and corrugated to form channels at a fixed angle to the column axis. Adjacent sheets are arranged with opposite corrugation directions, creating a geometrically ordered network of micro-channels that eliminate channeling and wall-flow . The 500Y and 700Y models belong to the family of high-specific-surface-area packings. The "Y" denotes a 45° corrugation angle ; the number indicates nominal specific surface area in m²/m³ . Compared to random packings, structured packing delivers 4.5× the specific surface area of Pall rings with dramatically lower pressure drop . Figure 2: 45° corrugated sheets arranged with opposite orientations create uniform micro-channels. 2. 500Y vs 700Y: Technical Specifications Both 500Y and 700Y are available as either wire gauze (for maximum wettability and vacuum service) or perforated plate (for higher mechanical strength and fouling resistance). Key parameters : Model CorrugationAngle Specific Area(m²/m³) Void Fraction(%) Theoretical Plates(per m) Pressure Drop(MPa/m) HETP(mm) 250Y(reference) 45° 250 97–98 2.5–3.0 2–3 × 10-4 300–450 500Y 45° 500 90–95 4.5–5.5 3 × 10-4 200–300 700Y 45° 700 85–87 8–10 4.5–6.5 × 10-4 150–200 Data compiled from multiple manufacturers' standard datasheets . 500Y is the single most widely used model of wire gauze structured packing ; 700Y doubles the theoretical plate count per meter for ultra-precision separation. Custom models 450Y, 550Y(X), and 750Y are available on request. 3. Why Choose 500Y / 700Y? Core Performance Advantages Ultra-High Separation Efficiency: 700Y delivers 8–10 theoretical plates per meter — ideal for isotope separation and high-purity fine chemicals . Low Pressure Drop: 500Y operates at just 0.05–0.3 kPa/m, enabling deep vacuum distillation below 7 kPa without excessive energy loss . Capillary Wettability: Wire gauze construction traps liquid into a thin film, maintaining high efficiency even at spray densities as low as 0.2 m³/(m²·h) . No Amplification Effect: Regular geometric arrangement means lab performance scales predictably to large-diameter towers . Large Operational Flexibility: Performs consistently across wide load fluctuations with almost no low-load limit . 4. Material Selection Material Service Condition Typical Application SS304 / 304L General service, non-chloride Methanol rectification, ethanol recovery SS316 / 316L Chloride-containing, mild acid Acetic acid rectification, HCl recovery, amine service 321 Stainless High-temperature oxidation resistance Reformer units, high-temp vacuum columns Duplex 2205 / Titanium Strong corrosion + high purity PTA, pharmaceutical intermediates Carbon Steel Non-corrosive hydrocarbon Cost-sensitive atmospheric distillation All materials are available with mill test certificates (MTC) to ASTM A240. For a detailed comparison of 304 vs 316L, see our 304 vs 316L material guide. 5. Primary Applications • Vacuum Distillation: Thermally sensitive materials, deep vacuum service below 7 kPa — essential for fragrances, vitamins, and fine chemicals . • Precision Rectification: High-purity solvent recovery (≥ 99.9%), isomer separation, isotopic compound separation . • Petrochemical: Ethylene demethanizer (cryogenic separation), styrene monomer purification, refinery vacuum towers . • Coal Chemical: Methanol rectification (3-column / 4-column process), glycol separation . • Pharmaceutical: Vitamin E refinement, vitamin C extraction, API purification . • Air Separation: Liquid nitrogen wash, cooling tower, rare gas recovery . Figure 3: Adjacent packing layers rotated 90° during installation to ensure uniform gas-liquid distribution. 6. Installation Guidelines Layer Orientation: Adjacent packing beds must be rotated 90° relative to each other to promote radial mixing and prevent channeling . Pour Height: Always pour packing from a height above the bed — never drop directly. Personnel must not stand on the packing; lay boards to distribute weight . Bed Limiters: Install hold-down plates above each bed to prevent fluidization under high gas velocity. See our Bed Limiter guide. Redistribution: For beds taller than 3–5 m, install liquid collectors and redistributors. See our Collector & Redistributor guide. Not Recommended For: Heavy fouling services and strongly corrosive media — consider perforated plate type instead of wire gauze . 7. Quick FAQ Q: When should I specify 700Y instead of 500Y? A: Choose 700Y when your separation requires 8–10 theoretical plates per meter — typically isotope separation, isomer separation, or ultra-high-purity fine chemicals. For general vacuum distillation of thermally sensitive materials, 500Y offers the best balance of efficiency and capacity . Q: What is the minimum column diameter for 500Y/700Y? A: Wire gauze structured packing performs best in small-to-medium diameter columns (typically DN100–DN1200). For larger diameters, perforated plate type (250Y/350Y) is recommended to manage manufacturing and installation costs. We engineer each packing disc to your tower's exact inner diameter . Q: Can you manufacture to our tower drawings? A: Yes. As a structured packing manufacturer, we fabricate every disc to your column's inner diameter, bed height, and material specification. Send us your tower drawing and process conditions, and we will deliver ready-to-install packing discs with full dimensional inspection reports . Request 500Y/700Y Metal Structured Packing FXSINO manufactures 500Y and 700Y metal structured packing in wire gauze and perforated plate configurations, with SS304, 304L, 316, 316L, 321, duplex, and titanium materials. Production capacity up to 1,000 m³/month. Every order ships with material mill certificates and dimensional inspection reports. Contact FXSINO: jackieqiu9202@gmail.com | +86 18507999558

  { "@context": "https://schema.org", "@type": "Product", "name": "Stainless Steel Metal Pall Ring - Random Packing for Distillation & Scrubbing", "description": "Stainless steel metal Pall Rings in 16mm, 25mm, 38mm, 50mm, and 76mm for distillation, absorption, and gas scrubbing. High void fraction above 95%, low pressure drop, SS304/304L/316/316L available.", "brand": {"@type": "Brand", "name": "FXSINO"}, "sku": "FS-SS-PR", "image": "/storage/uploads/images/202608/21/IMG_SS_PALL_HERO.jpg" } Figure 1: Stainless steel Pall Ring — cylindrical body with stamped windows and inward-bent fingers. Stainless Steel Metal Pall Ring: Random Packing for Distillation & Scrubbing Engineering Alert: When your column runs above 100°C, operates under vacuum, or handles hydrocarbons and high-pressure gas, plastic packings will deform or fail. Stainless steel metal Pall Rings deliver void fractions above 95%, low pressure drop, and the mechanical strength to support deep beds — the industry standard for distillation and scrubbing service. 1. What Is a Stainless Steel Pall Ring? The Pall Ring is the evolved form of the classic Raschig ring. While it retains the cylindrical shape (height equals diameter), its wall is punched with two rows of windows, and the resulting metal tabs are bent inward toward the center . This simple change transforms performance: the windows create internal surfaces and open pathways that drastically improve liquid distribution, mass transfer efficiency, and throughput while lowering pressure drop . Stamping the rings from stainless steel strip (rather than casting) gives them high dimensional precision, thin walls, and consistent mechanical strength — all critical for large-scale industrial columns. Figure 2: Punched windows and inward-bent fingers create internal wetting surfaces. 2. Technical Specifications (SS304 Reference) The table below lists the standard sizes based on SS304 and a wall thickness of 0.3–1.2 mm. Bulk density varies with both material grade and wall thickness; the values shown are for reference . Size D×H×T (mm) Surface Area (m²/m³) Void Fraction (%) Bulk Number (pcs/m³) Bulk Density (kg/m³) 16 × 16 × 0.3 362 94.9 214,000 396 25 × 25 × 0.5 219 95.0 51,940 393 38 × 38 × 0.6 146 95.9 15,180 318 50 × 50 × 0.8 109 96.0 6,500 314 76 × 76 × 1.2 71 96.1 1,830 308 Data source: compiled from industry standard datasheets (SS304, theoretical values for reference; actual bulk density varies with wall thickness) . Custom sizes (6/10/13/89/100 mm) and non-standard thicknesses are available on request. 3. Why Metal Pall Ring Outperform in Harsh Service Key Performance Advantages High Loading & Throughput, Low Pressure Drop: Void fractions above 95% minimize resistance to gas flow, allowing higher capacity before flooding . Superior Mass Transfer: The windows and fingers spread liquid evenly and resist nesting, channeling, plugging, and fouling . Excellent Wettability: Metal surfaces wet more readily than plastics, maintaining efficiency even at low liquid loads . Mechanical Strength for Deep Beds: Stainless steel's robustness means negligible breakage — suitable for deeper packed beds under high pressure . High-Temperature & High-Pressure Capable: Unlike plastics, metal rings withstand thermal cycling and elevated temperatures without deformation (stainless grades suitable up to 400–500°C depending on alloy) . Figure 3: Material selection — metal for high temperature & pressure, plastic for corrosion, ceramic for extreme heat. 4. Material Selection: Which Stainless Grade? Material Service Temperature Typical Application SS304 / 304L Up to ~400°C Clean organics, hydrocarbon fractionation, general service SS316 / 316L Up to ~400°C Acid gas absorption, amine/CO2 service, chloride-containing streams Carbon Steel Up to ~350°C Cost-sensitive, non-corrosive hydrocarbon service Duplex 2205 / 904L Up to ~300°C High chloride / seawater, aggressive corrosion Hastelloy / Titanium / Monel Alloy-dependent Severe corrosion, halides, hot acids For a deeper dive into the 304 vs 316L decision, see our 304 vs 316L material guide. Available grades include SS304, 304L, 316, 316L, 410, 2205 duplex, 904L, plus carbon steel and exotic alloys . 5. Primary Applications Metal Pall Rings are specified across separation, absorption, and desorption services — at both atmospheric pressure and under vacuum, where minimizing pressure drop is critical . • Distillation Columns: Crude oil fractionation, ethylbenzene/styrene separation, ethanol rectification, vacuum distillation . • Absorption & Scrubbing: H2S, NH3, SO2, CO2 removal; acid gas scrubbers; quenching towers . • Stripping: Steam stripping, VOC recovery, direct-contact cooling . • Petrochemical & Refining: Catalytic reforming, gas processing, decarbonization, desulfurization . • Heat Recovery & Extraction: Counter-current heat exchange and solvent extraction . Figure 4: Stainless steel Pall Rings being loaded into a distillation column. 6. Quick FAQ Q: When should I choose metal over plastic Pall Rings? A: Choose metal when operating temperature exceeds 100°C, under vacuum, at high pressure, or with hydrocarbon/organic streams where plastics deform or swell. For corrosive services below 100°C, plastics like PP or PTFE are more economical. Q: How much packing do I need for my column? A: Use the bulk number from the table. For a 1.5 m ID column with 4 m bed height of 38mm rings: π × 0.75² × 4 × 15,180 ≈ 107,200 pieces. Contact us with your tower ID and bed height for a precise quote. Q: Can stainless steel Pall Rings be used with structured packing? A: Yes. Random metal Pall Rings are often used in the lower or upper beds alongside structured packing, especially in revamps or where redistribution is needed. We can engineer a hybrid bed design for your column. Need Stainless Steel Pall Rings? FXSINO supplies stainless steel metal Pall Rings in SS304, 304L, 316, and 316L in all standard sizes (16/25/38/50/76 mm), with optional carbon steel, duplex, Hastelloy, or titanium. Every batch ships with material mill certificates (MTC to ASTM A240) and dimensional inspection reports. Contact FXSINO: jackieqiu9202@gmail.com | +86 18507999558

  { "@context": "https://schema.org", "@type": "Article", "headline": "Camel Hump Support Grid: Design & Load Data", "description": "Technical guide to camel hump support grids for structured packing beds. Covering design parameters, load-bearing capacity, material selection, and installation best practices.", "author": {"@type": "Person", "name": "Jackie Qiu"}, "publisher": {"@type": "Organization", "name": "FXSINO"} } Figure 1: Camel hump support grid — continuous arched profile stamped from steel plate. Camel Hump Support Grid: Design & Load Data Engineering Alert: The support grid is the foundation of your packed bed. A failed support means collapsed packing, blocked gas flow, and a costly shutdown. Camel hump (camelback) grids deliver 90%+ open area with exceptional load-bearing capacity—but only when designed to your specific column loads. Here's the data you need. 1. What Is a Camel Hump Support Grid? A camel hump support grid—also called a camelback support—is fabricated from steel plates stamped into continuous arched (wave) profiles. The "humps" create a rigid structural section, while the spaces between arches provide high open area for gas and liquid passage. Unlike flat bar grids, the arched geometry turns each rib into a load-carrying beam. Figure 2: Key dimensions—arch height (H), plate thickness (t), and open area ratio. 2. Design Parameters Parameter Typical Range Design Note Open Area 90 - 95% Minimizes pressure drop across the support plane. Arch Height 150 - 300 mm Higher arches carry more load but reduce bed height. Plate Thickness 3 - 6 mm Driven by calculated bed load (see Section 3). Module Width 300 - 500 mm Must pass through the column manway (typically DN500 or larger). Hole Diameter 10 - 25 mm Balance liquid drainage vs. packing fallback. 3. Load-Bearing Capacity Data The load-bearing capacity of a camel hump grid depends on three variables: plate thickness, arch height, and material grade. The total bed load includes packing weight, liquid holdup, and any process-side pressure differential. Typical Load Capacity by Plate Thickness (SS316L, Arch Height 200 mm): • 3 mm plate: ~2,500 kg/m² (light-duty; suitable for 250Y beds < 3 m tall) • 4 mm plate: ~4,500 kg/m² (standard-duty; most 500Y applications) • 6 mm plate: ~8,000 kg/m² (heavy-duty; tall beds, high liquid holdup, vacuum service) Design Safety Factor: Always specify a minimum 2.5× safety factor over the calculated operating load. Temperature above 300°C requires derating—consult our engineers. Figure 3: Camel hump grid (left) delivers 90%+ open area vs. ~45% for a traditional bar grid (right). 4. Camel Hump vs. Bar Grid: Which to Choose? Factor Camel Hump Grid Bar Grid Open Area 90 - 95% 40 - 50% Pressure Drop Minimal Moderate to high Liquid Redistribution Built-in (arch valleys collect & re-drip) None (requires separate collector) Load Capacity High (arch acts as beam) Moderate Fouling Risk Low (self-draining valleys) Higher (flat surfaces trap solids) 5. 4-Step Selection Method Step 1 — Calculate Bed Load: Packing bulk density × bed height × tower area + liquid holdup (typically 5-15% of packing volume). For 500Y packing, expect ~7.2 kg/m² per mm of bed height. Step 2 — Verify Manway Access: Module width must be ≤ manway ID minus 50 mm clearance. Standard DN500 manway → max module width 450 mm. Step 3 — Check Process Conditions: Temperature > 300°C requires thicker plate or upgraded alloy. Vacuum service needs smooth gas entry (hump profile minimizes entry loss). Step 4 — Match Corrosion Rating: Same alloy as your packing. See our 304 vs 316L guide for chloride thresholds. Figure 4: Installing camel hump grid modules through a DN500 manway. 6. Material Selection Corrosion & Temperature Limits SS304L: Clean organics, atmospheric temperature. Most economical choice. SS316L: Amine service, H2S, CO2, trace chlorides. The industry default for refinery service. Duplex 1.4462: Chlorides > 500 ppm, higher mechanical strength at temperature. Titanium Grade 2: Aggressive chlorides, wet Cl2, seawater stripping. 7. Installation & Common Failure Modes Failure Mode Cause Prevention Permanent Deformation Overload or high-temperature creep Apply 2.5× safety factor; derate for T > 300°C Packing Fall-Through Hole diameter too large for packing size Max hole = 60% of packing corrugation spacing Gas Bypassing Gaps between modules and shell Weld perimeter seal strips during installation Corrosion Perforation Concentrated corrosives in valleys Specify same alloy as packing; ensure drainage 8. Pairing with Liquid Distributors The camel hump grid sits at the bottom of the packed bed. Above it sits the packing, and above that sits the liquid distributor. The grid's arch valleys naturally collect liquid and act as a crude redistributor—especially valuable when paired with perforated plate structured packing, which adds lateral redistribution through perforations. For a complete overview of packing selection, see our 5-factor guide. Figure 5: Full tower internals assembly—camel hump grid at bottom, structured packing in middle, liquid distributor on top. Quick FAQ Q: Can a camel hump grid replace a separate liquid collector? A: In many cases, yes. The arch valleys collect liquid and drip it onto the bed below, providing basic redistribution. However, for tall columns (> 6 m bed height) or severe maldistribution, a dedicated liquid collector and redistributor is still recommended at intermediate levels. Q: How do I prevent packing from falling through the grid holes? A: The maximum hole diameter should not exceed 60% of the packing's corrugation spacing. For 250Y (spacing ~25 mm), holes should be ≤ 15 mm. For 500Y (spacing ~12 mm), holes should be ≤ 7 mm. We can supply mesh overlay if needed. Q: What's the maximum temperature for SS316L camel hump grids? A: SS316L retains full strength up to ~425°C. Above that, creep becomes significant—we recommend Duplex or Inconel 625 for continuous service above 450°C. Need Engineering Drawings & Load Calculations? FXSINO supplies camel hump support grids with full mechanical calculations, material mill certificates, and matched tower internals. Send us your tower ID, bed height, and process conditions—we'll engineer the right solution. Contact FXSINO: jackieqiu9202@gmail.com | +86 18507999558