Storz Gaskets - 5" Pressure

Red Head Brass Storz Gaskets are precision-molded sealing components designed for use in Storz hose couplings and adapters. These gaskets ensure a tight, leak-free connection in both suction and pressure applications, critical for firefighting and emergency water delivery systems.

Features

• Available Sizes: 1.5", 4", 5", and 6"
• Dual Functionality: Suitable for both suction and pressure applications
• Material: Made from Buna-N rubber for resistance to oils, acids, and hydrocarbons
• Durable Construction: Designed to withstand demanding environments
• Easy Installation: Compatible with standard Storz couplings and adapters
• Made in the USA: Manufactured by Red Head Brass, a trusted name in fire service equipment

How Is It Used?

These gaskets are inserted into Storz couplings, adapters, and caps to create a secure seal. Suction gaskets are thicker to prevent air intrusion during vacuum operations, while pressure gaskets maintain a tight seal under high water pressure. Installation typically requires a Storz wrench and gasket lubricant for optimal performance.

Who Uses It?

• Fire departments
• Emergency response teams
• Industrial water systems
• Municipal services
• Hose and coupling manufacturers

Maintenance Information

Inspect gaskets regularly for wear, cracking, or deformation. Replace as needed to maintain seal integrity. Use gasket lubricant to extend lifespan and ensure smooth installation and removal.

What Is It Used With?

Compatible with Storz couplings, adapters, blind caps, valves, and hose fittings used in firefighting, industrial, and municipal water systems.

Material

Constructed from Buna-N (Nitrile Rubber), known for its excellent resistance to oils, gasoline, acids, and greases.

Benefits of Buna-N (Nitrile Rubber):

• Excellent Oil and Fuel Resistance
  • Buna-N is highly resistant to petroleum-based oils, fuels, and greases, making it ideal for applications involving hydraulic fluids, motor oil, and gasoline.
• Chemical Resistance
  • It offers good resistance to a wide range of chemicals including acids, alkalis, and many solvents, which is crucial for industrial and firefighting environments.
• Temperature Tolerance
  • Buna-N performs well in temperatures ranging from approximately -40°F to 250°F (-40°C to 121°C), making it suitable for both hot and cold conditions.
• High Tensile Strength and Durability
  • It has strong mechanical properties, including high tensile strength and abrasion resistance, which contribute to long service life in demanding applications.
• Water and Air Sealing
  • Its low permeability to gases and water makes it ideal for sealing applications, such as gaskets in suction and pressure systems.
• Cost-Effective
  • Compared to other elastomers like Viton or EPDM, Buna-N is more affordable while still offering excellent performance in many environments.
• Versatility
  • Used in a wide range of industries including automotive, aerospace, firefighting, plumbing, and industrial manufacturing.

Suction vs. Pressure Gaskets: Key Differences

1. Purpose & Application

• Suction Gaskets are used in vacuum or low-pressure intake systems, such as the intake side of a fire pump. Their job is to prevent air from entering the system, which could cause loss of prime or reduced performance.
• Pressure Gaskets are used on the discharge side, where water is being pushed out under high pressure. They are designed to withstand and seal against high water pressure.

2. Thickness & Profile

• Suction Gaskets are typically thicker and may have a more pronounced lip or ridge to ensure a tight seal against air intrusion.
• Pressure Gaskets are usually thinner and flatter, optimized for sealing under water pressure rather than vacuum.

3. Material Density

• Both types are often made from Buna-N rubber, but suction gaskets may have a slightly denser or more rigid composition to maintain shape under vacuum conditions.

4. Visual Identification

• You can often tell the difference by comparing the thickness and edge profile:
  • Suction gaskets = thicker, more robust
  • Pressure gaskets = thinner, more flexible

5. Markings

• Some manufacturers mark the gaskets with “Suction” or “Pressure” on the edge or surface. If not marked, refer to the product specs or compare side-by-side.