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Fast-Entry Access Load Lock Doors Hardware & Replacement Parts

Fast-Entry Access Load Lock Doors Hardware & Replacement Parts

Fast-Entry Access Load Lock Doors Hardware & Replacement Parts: Reliable Components for Vacuum Chamber Integrity and Serviceability

TFM offers a full selection of Fast-Entry Access Load Lock Doors Hardware & Replacement Parts engineered to support the smooth operation, maintenance, and sealing performance of vacuum load lock systems. Designed for use in high-vacuum (HV) and ultra-high vacuum (UHV) environments, these components are essential for ensuring reliable system entry without compromising vacuum integrity.

From replacement viewport glass to hinges and knobs, TFM’s precision-engineered parts make it easy to maintain and refurbish fast-entry access doors used in load locks, transfer chambers, or isolation modules.

Key Components of Fast-Entry Access Load Lock Doors Hardware & Replacement Parts:

  • Replacement Viewport Glass
    Available in tempered Pyrex for general vacuum use and fused quartz for high-temperature or optical applications. Each glass insert is precision-cut and compatible with standard viewport mounts.

  • Mounting Bolt Sets
    Includes hardware such as counterbored bolt sets (e.g., KJLC®-style), specifically designed for full-clearance installation and maximum aperture access.

  • O-Rings
    Wide variety of o-ring sizes and materials including Viton®, Buna-N, and silicone, ensuring proper sealing of door perimeters and viewport frames under vacuum cycling conditions.

  • Hinges and Fasteners
    High-strength stainless steel hinges, pins, and fastener kits to maintain mechanical stability and long-term operational integrity of the access mechanism.

  • Knobs and Handles
    Ergonomically designed replacement knobs, door handles, and latching hardware to support consistent user access, safe closure, and secure sealing during chamber use.

Applications:

  • Load lock doors in thin film deposition systems

  • Transfer chamber access points in semiconductor or optics platforms

  • HV/UHV testing rigs requiring quick-entry functionality

  • Replacement parts for legacy or custom vacuum chamber designs

  • OEM system servicing and chamber refurbishment projects

Whether you’re upgrading worn components or configuring new assemblies, TFM’s Fast-Entry Access Load Lock Doors Hardware & Replacement Parts provide the quality and reliability needed to keep your vacuum systems running smoothly.

For sizing charts, compatibility guidance, or special-order materials, contact our technical support team or consult our vacuum hardware catalog.

Ordering Table

Reference LL Door Part No. Part Number Price
Replacement O-ring for Viewport Glass DS-LL0450VP O-V147 P.O.R.
Replacement O-ring for Viewport Glass DS-LL0600VP O-V155 P.O.R.
Replacement O-ring for Viewport Glass DS-LL0800VPDS-LL1000VPDS-LL1200VPDS-LL1325VPDS-LL1400VP O-V163 P.O.R.
Replacement O-ring for Door DS-LL0450DS-LL0450VP O-V231 P.O.R.
Replacement O-ring for Door DS-LL0600DS-LL0600VP O-V243 P.O.R.
Replacement O-ring for Door DS-LL0800DS-LL0800VP O-V258 P.O.R.
Replacement O-ring for Door DS-LL1000DS-LL1000VP O-V266 P.O.R.
Replacement O-ring for Door DS-LL1200DS-LL1200VPDS-LL1325DS-LL1325VP O-V274 P.O.R.
Replacement O-ring for Door DS-LL1400DS-LL1400VP O-V277 P.O.R.
Bolt Kit for attaching to Tapped Flanges:(8) 0.75" (19.05mm) Length, 5/16-24 Thread DS-LL0450,DS-LL0450VP SBK31224075S4-8 P.O.R.
Bolt Kit for attaching to Tapped Flanges:(16) 1.00" (25.40mm) Length, 5/16-24 Thread DS-LL0600,DS-LL0600VP SBK31224100S4-16 P.O.R.
Bolt Kit for attaching to Tapped Flanges:(20) 1.00" (25.40mm) Length, 5/16-24 Thread DS-LL0800,DS-LL0800VP SBK31224100S4-20 P.O.R.
Bolt Kit for attaching to Tapped Flanges:(24) 1.00" (25.40mm) Length, 5/16-24 Thread DS-LL1000,DS-LL1000VP SBK31224100S4-24 P.O.R.
Bolt Kit for attaching to Tapped Flanges:(32) 1.00" (25.40mm) Length, 5/16-24 Thread DS-LL1200,DS-LL1200VP SBK31224100S4-32 P.O.R.
Bolt Kit for attaching to Tapped Flanges:(30) 1.25" (31.75mm) Length, 3/8-24 Thread DS-LL1325,DS-LL1325VP,DS-LL1400,DS-LL1400VP SBK37524125S4-30 P.O.R.
Bolt & Nut Set for Attaching to Through Hole Flanges:(16) 1.50" (38.10mm) Length, 5/16-24 Thread DS-LL0600,DS-LL0600VP SBS31224150S4-16 P.O.R.
Bolt & Nut Set for Attaching to Through Hole Flanges:(8) 1.50" (38.10mm) Length, 5/16-24 Thread DS-LL0450,DS-LL0450VP SBS31224150S4-8 P.O.R.
Bolt & Nut Set for Attaching to Through Hole Flanges:(20) 1.75" (44.45mm) Length, 5/16-24 Thread DS-LL0800,DS-LL0800VP SBS31224175S4-20 P.O.R.
Bolt & Nut Set for Attaching to Through Hole Flanges:(24) 2.00" (50.80mm) Length, 5/16-24 Thread DS-LL1000,DS-LL1000VP SBS31224200S4-24 P.O.R.
Bolt & Nut Set for Attaching to Through Hole Flanges:(32) 2.00" (50.80mm) Length, 5/16-24 Thread DS-LL1200,DS-LL1200VP SBS31224200S4-32 P.O.R.
Bolt & Nut Set for Attaching to Through Hole Flanges:(30) 2.25" (57.15mm) Length, 3/8-24 Thread DS-LL1325,DS-LL1325VP,DS-LL1400,DS-LL1400VP SBS37524225S4-30 P.O.R.
Replacement Viewport Glass - Quartz DS-LL0450VP VPW31QRT037 P.O.R.
Replacement Viewport Glass - Borosilicate DS-LL0450VP VPW31TPYR037 P.O.R.
Replacement Viewport Glass - Quartz DS-LL0600VP VPW45QRT037 P.O.R.
Replacement Viewport Glass - Borosilicate DS-LL0600VP VPW45TPYR037 P.O.R.
Replacement Viewport Glass - Quartz DS-LL0800VPDS-LL1000VPDS-LL1200VPDS-LL1325VPDS-LL1400VP VPW65QRT037 P.O.R.
Replacement Viewport Glass - Borosilicate DS-LL0800VPDS-LL1000VPDS-LL1200VPDS-LL1325VPDS-LL1400VP VPW65TPYR037 P.O.R.
Reference LL Door Part No. Part Number Price

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FAQ

Tube fittings are designed for tubes (measured by outside diameter and wall thickness) used in high-pressure and instrumentation applications, whereas pipe fittings are for pipes (identified by nominal pipe size) primarily used in fluid transport.

 

Common valve types include ball valves, gate valves, check valves, butterfly valves, and globe valves. Each serves a specific function—from quick shutoff (ball/gate valves) to flow regulation (globe valves).

 

  • For tubing, measure the outside diameter; for pipes, refer to the nominal pipe size (using conversion charts if needed). Always match the valve or fitting size to your pipe’s dimensions and flow requirements.

  • Frequently used thread types include NPT (National Pipe Tapered), BSP (British Standard Pipe), and UNC, along with slip-fit options that rely on compression or fusion rather than threads.

Interchangeability depends on manufacturer specifications and certification. Always verify compatibility via manufacturer guides or certified interchangeability charts.

 

  • A coupling is a short, straight fitting used to join two pipes or tubes. It provides a secure, leak-tight connection and can sometimes serve to extend or repair piping runs.

Consider valve type, pressure and temperature ratings, material compatibility with your fluid, actuation method (manual or automatic), and maintenance requirements.

 

  • Valves regulate flow by opening, closing, or partially obstructing the pathway. Their mechanisms (such as the rotation of a ball or the linear movement of a gate) determine the speed and precision of flow control.

  • A flange is a flat, circular component used to connect pipes, valves, or other equipment. Bolted together with gaskets, flanges provide a secure, leak-proof joint that facilitates both assembly and maintenance.

  • Manual valves require physical operation via handles or levers, whereas actuated valves use mechanisms—pneumatic, electric, or hydraulic—to open and close automatically or remotely.

  • Issues include leaks caused by improper installation, over-tightening, degraded seals, material incompatibility, and fatigue from repeated cycling. Regular inspection and proper installation practices help mitigate these problems.

Regular maintenance involves periodic inspections, cleaning or replacing worn seals, ensuring proper torque during installation, and adhering to manufacturer guidelines and local plumbing codes to preserve system integrity.

 

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