Fisher Types 1808 & 1808A Relief Valve | Backpressure Regulator | Overpressure Protection Supplier

High-performance relief and backpressure regulator designed for system pressure protection, ensuring stable operation and reliable overpressure control in industrial gas applications.

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Description

Overview

The Fisher Types 1808 and 1808A are high-reliability relief valves and backpressure regulators designed to protect industrial gas systems from overpressure conditions.

They automatically release excess pressure or maintain upstream pressure balance, helping prevent equipment damage and unplanned shutdowns.

For critical pipelines and control systems, these models provide stable, long-term pressure protection.

Why Choose Types 1808 / 1808A

In industrial gas systems, pressure spikes can cause serious safety risks and costly downtime.

The 1808 Series is selected for:

Accurate relief and backpressure control
Wide adjustable set pressure range
Strong body structure for high-pressure service
Stable performance under continuous operation

These features make it suitable for demanding environments where safety and reliability are priorities.

Typical Applications

Gas transmission and distribution systems
Compressor discharge protection lines
Pressure relief stations
Industrial process control pipelines

Especially suitable for projects requiring automatic pressure protection and backpressure regulation.

Technical Specifications

Product Type	Relief Valve / Backpressure Regulator
Model	Type 1808 / Type 1808A
Body Size & Connection	2 NPT
Maximum Inlet Pressure	150 psig / 10.3 bar (including buildup)
Relief Set Pressure Range	3 to 125 psig / 0.21 to 8.6 bar
Temperature Range	-20°F to 180°F / -29°C to 82°C
Approximate Weight	1808: 10 kg / 1808A: 11 kg

Fisher Types 1808 & 1808A Relief Valve

For Project Owners & System Engineers

For B2B buyers and engineering teams, pressure protection devices are not optional — they are essential for system safety and compliance.

We support model verification, pressure setting confirmation, and delivery planning to help customers avoid wrong selection and installation risks.

With stable supply and technical support, we help you build safer and more reliable pressure control systems.

Packing & Delivery

1. Precision Packing

At INSTRUBEST, ensuring that your instruments and equipment arrive safely is our top priority. We take the following measures to protect each product:

High-Quality Packing Materials: We use durable materials such as bubble wrap, foam padding, and sturdy cartons to shield products from shocks and vibrations during transit.
Custom Packaging: Tailored packaging solutions are designed to fit the specific needs of different types of instruments and equipment, ensuring maximum protection.
Labels and Markings: All packages are clearly labeled with handling instructions and precautions to minimize the risk of damage during shipping.

2. Rigorous Quality Inspection

Before shipment, our quality control team performs a thorough inspection of each product to ensure that it meets our high standards. We are committed to addressing any potential issues to guarantee the performance and integrity of your equipment.

3. Fast Shipping

We understand that timely delivery is crucial for your business, which is why we offer efficient shipping services:

Processing Time: Orders are processed and prepared for shipment within 24 hours of confirmation.
Shipping Options: We provide a range of shipping options, including standard delivery, expedited services, and international shipping, to suit your needs.
Tracking Services: Once shipped, you will receive a tracking number to monitor the status of your order in real-time.

4. Global Delivery

We are dedicated to delivering products to locations around the world. No matter where you are, we ensure that your instruments and equipment reach you safely and promptly.

5. After-Sales Support

If you encounter any issues with packaging or delivery, please contact our customer service team. We offer comprehensive after-sales support to address any concerns and ensure your complete satisfaction.

FAQ

Q: How long will you give me the reply?

A: We will reply to you as soon as we see the information

Q: What is the delivery time?

A: Our delivery time is within 3-7 days after we get your payment; for large qty mass orders, the time should be confirmed again for you

Q: How about your package?

A: Do not worry about the package, we have rich experience in packing, and all our package is wooden case package .

Q: How about the payment terms ?

A:You can choose T/T.

Q: Do you provide samples ?

A: Yes,we have materials in stock to help you to get the samples as soon as we can.

Q: What is the MOQ?

A:1PC.

Q: Can I get a lower price if I order large quantities?

A: Yes, cheaper prices with more bigger size orders.