Gate Valve Stem Packing Assembly Spring Energized Valve Stem Packing

Product DescriptionSpring energized seals are designed to handle a wide range of applications where traditional elastomers fail. It excels in applications with high-speeds, wide temperature ranges and those with corrosive media. The Spring energized seal is a sealing device consisting of a PTFE or other polymer, energized by a corrosion resistant metal spring.  When the seal is seated in the gland, the spring is under compression applying force on the gland sealing surfaces thereby creating a tight barrier to prevent gas or fluids from leaking.  The spring also provides resiliency to compensate for seal wear, gland misalignment or eccentricity.  While spring force provides adequate force for sealing at low pressure, at high pressure the system pressure augments the spring force to provide an even tighter seal.Spring energized seals design is based on three principles:High-performance, engineered materialsU-cup style seal jacketsMetal spring energizers MATERIALSSPT combines material technology and seal design to optimize your sealing performance. The material technology uses high performance engineered polymers made from PTFE, PEEK, Polyimides, PPS and other polymer materials specified for your application.SPRING ENERGIZED SEAL FEATURES Temperature: -268°C (-450°F) to +316°C (+600°F)Pressure: Vacuum up to 3448 bar (50,000 psi)Low and controlled frictionBroad chemical resistance Spring-energized seals made of PTFE are characterized by:Low and high temperature resistance (-328°F to 500°F, -200°C to 260°C)FDA compliant compounds and designs availableExceptional resistance to chemicals and corrosionProvide the lowest coefficient of friction of all sealing materialsUnlubricated dry-running capabilities Pressure for standard designs up to 3,000psi (210 bar)High pressure special seal designs up to 20,000psi (1380bar)*Detailed Photosspring energized oil sealThe different shape of spring seal/ spring energized seal1.V-spring seals are designed for used in high or low presseure dynamic reciprocationg or rotary applications.2.Slanted Coil Spring Seals are for low friction, dynamic reciprocating and rotary applications. The seal produces a near flat load curve when compressed ( installed ). They provide constant predictable loads through their very wide deflection range.3.Helical Spring seals are designed for used in static or slow, infrequent dynamic sealing application due to high compression load over a small deflection range, which make these seals suitable when low pressure or vacuum and very low temperature ( cryogenic ) are present.Applications & Industries Spring-energized PTFE Seals are suitable for service in the following industries:PharmaceuticalsLiquid ChromatographyFood ProcessingSpace ExplorationTire ProductionHydraulicsVacuum ServiceOilfield Exploration and ProductionPaint and SolventsSteel MillsAdhesivesCryogenic ServiceLiquid Handling SwivelsPumps and ValvesGas Production and TransportationSemiconductorsMedical EquipmentGas Handling Equipment  Good service --- worth your trustFactory direct sale ----Customized service for you                                                       Energized PTFE Spring Seals:TypeUse forTechnicalApplicationMaterialSymmetricstandard heel groovetemperacture:-40~+260 °C ,speed ≤m/s:15,pressure≤ Mpa:45virtually all fluids,chemicals and gasesPTFE-filled stainless steelrodstandard heel groovetemperacture:-40~+260 °C ,speed ≤m/s:15,pressure≤ Mpa:45virtually all fluids,chemicals and gasesPTFE-filled stainless steelpistonstandard heel groovetemperacture:-40~+260 °C ,speed ≤m/s:15,pressure≤ Mpa:45virtually all fluids,chemicals and gasesPTFE-filled stainless steelsymetric for rodflanged heel groovetemperacture:-40~+260 °C ,speed ≤m/s:2,pressure≤ Mpa:25virtually all fluids,chemicals and gasesPTFE-filled stainless steelhigh-low lip rodflanged heel groovetemperacture:-40~+260 °C ,speed ≤m/s:2,pressure≤ Mpa:25virtually all fluids,chemicals and gasesPTFE-filled stainless steelinsideface sealtemperacture:-40~+260 °C ,speed:static or slow rotary,pressure≤ Mpa:45virtually all fluids,chemicals and gasesPTFE-filled stainless steeloutsideface sealtemperacture:-40~+260 °C ,speed:static or slow rotary,pressure≤ Mpa:45virtually all fluids,chemicals and gasesPTFE-filled stainless steel  Products ShowRelated Products Our Services1.Any inquiries will be replied within 8 hours.  2.Professional manufacturer.Welcome to visit our website. spt-seals.en.made-in-china.com 3.OEM/ODM available: any your idea on seals we can help you to design and put it into production. 4.High quality,fashion designs, reasonable &competitive price,fast lead time.  5.Complete Equipment and strong production.  6.Big Market share and Received very well by many customers.  7.Multiple models to satisfy customers from all over the world.    QuestionsQ1. Are you a factory or trading company? We have factory in Xingtai and office in Shijiazhuang, Hebei Province with export license. Convenient Transportation. It's not far from the Zh