Norman Filter Company's 4900 Series is a high flow, high pressure filter housing engineered for mission-critical fluid and gas filtration applications. This high pressure filter is commonly deployed within the U.S. Navy, where customized variants filter the firefighting water supply systems aboard Littoral Combat Ships — a role that demands extremely high flow filtration under real-world operating conditions. The 4900 Series is also utilized in aerospace filtration systems supporting rocket propulsion, where it filters helium and nitrogen gas at rates up to 30,000 SCFM.
The 4900 Series features a poppet-style bypass valve, which allows for a significantly increased bypass flow rate compared to industry-standard designs — helping protect system components even under high-flow upset conditions. For low temperature or cryogenic filter applications, contact our engineering team to discuss a configuration suited to your requirements.
4900 Series Filter Details:
- Housing: Aluminum, 316 Stainless Steel
- Mounting: 4 tapped mounting holes
- Operating Pressure: Up To 8,000 PSI - Proof Pressure 12,000 & Burst Pressure 32,000
- Port Size: 1 - 2"
- Elements: Cellulose, Glass Fiber, Stainless Steel Wire Mesh, Random Metal Fiber, Porous Sintered
- Micron Rating: .2 - 200 µm Nominal (300 Absolute)
- Flow Rate: 150 GPM | 10,000 SCFM | 10 PSID
- Temperature Rating: -320° - 600°F
- Filter Weight: 50 LBS Aluminum - 140 LBS Stainless Steel
- Accessories: Electrical & Visual Differential Pressure Indicator, Bypass Relief Valve, Direct Pressure Ports, Bowl Drain Ports, Bowl Handles for ease of installation
If any of our catalog product does not meet your requirements, we frequently customize filter elements and housings to meet your needs.
Why Choose the 4900 Series High Flow, High Pressure Filter Housing
The 4900 Series is engineered and manufactured in-house at Norman Filter Company's Bridgeview, IL facility, giving customers control over housing material, bypass configuration, and element type:
- Aluminum Housing — Offers a lightweight solution (as low as 50 LBS) for high flow applications where weight is a design constraint.
- 316 Stainless Steel Housing — Provides added corrosion resistance and strength for harsher operating environments, at 140 LBS.
- Poppet-Style Bypass Valve — Delivers an increased bypass flow rate compared to industry-standard spring-loaded bypass designs, helping protect downstream components during flow spikes.
- Wide Temperature Range (-320°F to 600°F) — Supports both cryogenic gas filtration (helium, nitrogen) and high-temperature operating environments within the same platform.
Every 4900 Series filter housing is proof, burst, and flow tested in-house — including Norman's dedicated high flow test stand built specifically to simulate extreme propellant flow rates for aerospace applications — ensuring each unit meets the rigorous standards required for U.S. Navy and space flight programs.
Common Applications & Industries We Serve
The 4900 Series high pressure filter housing is built to perform in some of the most demanding fluid and gas filtration environments in the world, including:
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Naval Firefighting Systems — Customized 4900 Series configurations filter the firefighting water supply system aboard U.S. Navy Littoral Combat Ships, where high flow filtration reliability is mission-critical. Learn more about our Military/Marine filtration solutions.
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Rocket Propulsion & Aerospace Gas Filtration — The 4900 Series filters helium and nitrogen gas at rates up to 30,000 SCFM in rocket propulsion systems, supporting manned and unmanned space flight programs. Learn more about our Aerospace filtration capabilities.
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Cryogenic & Low-Temperature Systems — With a temperature rating from -320°F to 600°F, the 4900 Series is suited for cryogenic gas filtration applications; contact our team to discuss custom low-temperature configurations.
These applications reflect just a few of the industries Norman Filter Company serves — see our full Industries Served page for more on our work across Oil & Gas, Aerospace, Military/Marine, Hydrogen, and Alternative Fuel markets.
| 549 | |
|---|---|
| Housing Material/Pressure Ratings | Aluminum (6 ksi) 316 SS (8 ksi) |
| Port Types | NPT, SAE ORB, Socket Weld |
| Port Sizes | 1" - 2" Pipe, Tube and Socket |
| Element Types | Wire Mesh, Porous Sintered, Random Metal Fiber, Glass Fiber, Cellulose |
| Element Materials | 316 CRES, Cellulose, Glass Fiber *Other Materials Available |
| Micron Rating | .2 - 200 micron *Element Dependent |
| Typical Flow Rate | 150 GPM / 12000 SCFM |
| Accessories/Add Ons | Electrical DP Indicator Visual DP Indicator DP Ports ByPass Valve Bowl Drain Ports |
Frequently Asked Questions
What is a high flow, high pressure filter used for?
A high flow, high pressure filter removes contaminants from liquids or gases in systems requiring both high pressure ratings and large volumetric flow rates. Norman Filter Company's 4900 Series is used in demanding applications like naval firefighting systems and rocket propulsion gas filtration, where reliability under extreme flow conditions is critical.
What is the flow rate of the 4900 Series filter?
The 4900 Series high pressure filter housing supports a flow rate of up to 150 GPM for liquids or 10,000 SCFM for gases, at a differential pressure of 10 PSID. Custom configurations can support even higher flow rates, such as the 30,000 SCFM helium and nitrogen filtration used in rocket propulsion systems.
What materials are used in the 4900 Series filter housing?
The 4900 Series filter housing is available in aluminum or 316 stainless steel. Aluminum housings weigh as little as 50 lbs for weight-sensitive applications, while 316 stainless steel housings weigh approximately 140 lbs and offer greater corrosion resistance for harsher operating environments.
What is a poppet-style bypass valve?
A poppet-style bypass valve is a bypass mechanism that allows increased bypass flow rates compared to standard spring-loaded designs. Norman Filter Company's 4900 Series uses this design to protect downstream components from pressure spikes during high-flow upset conditions in hydraulic and gas filtration systems.
Can the 4900 Series filter be used in cryogenic applications?
Yes. The 4900 Series has an operating temperature rating from -320°F to 600°F, making it suitable for cryogenic gas filtration, including helium and nitrogen used in rocket propulsion systems. Contact Norman Filter Company's engineering team to configure a custom low-temperature solution.
