GasShield® Gasket Filters

Mott GasShield® Gasket Filters, designed to endure extreme operating conditions, provide exceptional filtration performance. These filters seamlessly integrate into the gas system without increasing its length. Compatible with a wide range of inert and specialty gases, GasShield Gasket Filters fit snugly inside 1/4” face seal fittings. They are available with either 1” or 3” long porous elements and include an integral face seal gasket for added convenience.

Questions? Call 860.747.6333 Today!

Call us at 860.747.6333, or submit an information request form and someone will get back to you within 48 hours.

Literature & Data Sheets

GasShield Gasket Filters Overview

Nickel and stainless steel gasket filter specifications

Mott Semiconductor Products Catalog

Explore Mott’s wide range of high purity filters, diffusers and flow restrictors designed exclusively for semiconductor manufacturers.

Gasket Filter Installation and Replacement Instructions

Gasket Filter basic installation and replacement instructions

Product Specs

Operating Conditions

» Maximum Operating Temperature for Inert Gas: 450°C

» Maximum Differential Pressure: 1000 psid Forward or Reverse (68.9 barg)


» Hardware: 316LSS or Nickel

» Filter Medium: 316L SS or Nickel

» Hastelloy or custom materials contact us

Particle Removal Size: ≥ 0.003 μm
Helium Leak Rating: 1 x 10-9 atm cc/sec
Moisture Contribution: <10 ppb after 1 hour at low-flow ambient purge per SEMI F27 test method
Total Hydrocarbons: Below detectable limits per SEMASPEC 90120396B test method
Particle Shedding: Zero particle contribution above background (<1 particle/ft³) per SEMI F43-0308 test method
Flow Data

More flow curves available, consult factory or spec sheets.

Fittings & Dimensions

Typical Installation

Part Description Flow Rating (SLPM) Filter Material Face Seal Gasket Size (Inches) Element Length (Inches) Changeout Interval
GSG-V4-1-N 1 Nickel ¼ 1 System Dependent
GSG-V4-3-N 3 Nickel ¼ 3 System Dependent
20 Nickel ¼ 1 System Dependent
GSG-V5-1-2N 50 Nickel ½ 1 System Dependent
GSG-V4-1-S 1 316L SS ¼ 1 System Dependent
GSG-V4-3-S 3 316L SS ¼ 3 System Dependent
GSG-V4-1-2S 20 316L SS ¼ 1 System Dependent
GSG-V5-1-2S 50 316L SS ½ 1 System Dependent

*Custom designs and fittings available.

Our Design Capabilities

  • Flow/pressure drop curves and filtration efficiency for virtually any system design
  • Gas compatibility considerations
  • Custom filter media, gasket filter fitting material, and hardware design configurations available

Relevant Services

Design Expertise – From start to finish, we customize gasket filter solutions based on your design parameters – challenge us!

Fluid Modeling – Our extensive applications have built a library of data to increase the accuracy of our flow models for gasket filters to provide initial performance and feasibility estimates prior to building prototypes.

Extensive Partner Network – If a material is not listed or capability not in-house for gasket filter production, we maintain an extensive network of partners for new material procurement, advanced manufacturing capabilities, and validation testing.

Engineering Support – Utilize our expert project engineers to select the right gasket filter for your application, ensuring optimal performance and compatibility.

Why Choose Mott's Gasket Filters?

Gasket filters are integral components used to control gas flow and eliminate particles larger than 0.003 μm in various applications, ensuring the purity and integrity of gases. These filters are crucial for industries such as semiconductor manufacturing and high-purity processes where maintaining gas quality is paramount. Mott Corporation is a trusted leader in the field of gasket filters, known for its commitment to precision engineering and excellence in filter design and production. Mott’s gasket filters are highly durable and offer exceptional filtration performance, making them the preferred choice for industries that demand top-notch gas filtration and purity.

FAQs: Gasket Filters

Q: What is a gasket filter, and how does it work?

A: A gasket filter is a specialized filtration component designed to remove contaminants from gases or liquids. It typically consists of a porous material enclosed within a gasket-like structure. When fluids or gases pass through the filter, contaminants are trapped, allowing only clean fluid or gas to pass through.

Q: What are the primary applications for Mott’s gasket filters?

A: Mott’s gasket filters are used in a wide range of applications, including semiconductor manufacturing, chemical processing, pharmaceutical production, and more. They are crucial for ensuring the purity and quality of gases and liquids in various industrial processes.

Q: Are Mott’s gasket filters customizable to specific requirements?

A: Yes, Mott offers custom gasket filter solutions tailored to meet specific filtration needs. This customization includes the choice of filter media, materials, and configurations to ensure optimal performance in diverse applications.

Q: How durable are Mott’s gasket filters, and can they withstand harsh operating conditions?

A: Mott’s gasket filters are designed to be highly durable and can withstand extreme operating conditions, including high temperatures, pressures, and corrosive environments. They are built to provide long-lasting, reliable filtration performance.

Q: Do Mott’s gasket filters come with integral gaskets for easy installation?

A: Yes, Mott’s gasket filters are equipped with integral face seal gaskets, simplifying the installation process and ensuring a secure, leak-free fit in compatible systems.