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    "data": {
        "id": 3177,
        "sku": "529531",
        "name": "Soft-start valve",
        "type": "simple",
        "variations_count": 0,
        "manufacturer": "Festo",
        "product_url": "https://www.festo.com/us/en/a/529531/",
        "is_scraped": true,
        "price": null,
        "price_currency": "USD",
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            "name": "MS4_DL"
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                "name": "MS4_DL"
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        "series": null,
        "specifications": {
            "Exhaust air function": "Adjustable",
            "Actuation type": "Pneumatic",
            "Mounting position": "Any",
            "Manual override": "None",
            "Structural design": "Piston seat",
            "Reset method": "Mechanical spring",
            "Type of control": "directly",
            "Pilot air supply port": "External",
            "Flow direction": "Non-reversible",
            "Symbol": "00991513",
            "Valve function": "2/2",
            "Operating pressure": "4, 14 bar",
            "b-value": "0.45",
            "C value": "9.6 l/sbar",
            "Normal nominal flow rate (normalized to DIN 1343)": "2000 l/min",
            "Operating medium": "Compressed air as per ISO 8573-1:2010 [7:4:4], Inert gases",
            "Information on operating and pilot media": "Operation with oil lubrication possible (required for further use)",
            "Corrosion resistance class (CRC)": "2 - Moderate corrosion stress",
            "LABS (PWIS) conformity": "VDMA24364-B1/B2-L",
            "For use in the food industry": "See supplementary material information",
            "Temperature of medium": "-10, 60 °C",
            "Ambient temperature": "-10, 60 °C",
            "Product weight": "213 g",
            "Type of mounting": "With accessories",
            "Pneumatic connection 1": "G1/4",
            "Pneumatic connection 2": "G1/4",
            "Note on materials": "RoHS compliant",
            "Seals material": "NBR",
            "Housing material": "Die-cast aluminum"
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        "pdf_documents": [
            {
                "text": "Document",
                "type": "pdf",
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        "custom_fields": {
            "order_code": "MS4-DL-1/4",
            "gtin": "4052568085308"
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        "description": "All functions for the preparation of compressed air: valves for pressure regulation, shut off, filter regulation, and soft start, with safety function; pressure and flow sensors, filter, dryer, water trap, sensors, lubricator, and distributor. In sizes 4, 6, 9, and 12.\n\n• 2/2-way valve for slowly pressurizing pneumatic installations (for use with shut off valve EM(1) and EE)\n• For building up pressure gradually\n• Adjustable pressure build-up time\n• Standard nominal flow rate <=1.800 l/min with grid dimension 40 mm",
        "created_at": "2026-06-12 18:10:48",
        "variations": []
    }
}