Fisher 289H Relief Valve ｜ Industrial Gas Pressure Relief ｜Backpressure Control

A compact relief valve for gas service, commonly used in industrial systems where stable pressure protection and straightforward specification are required.

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Description

The Fisher 289H relief valve is designed for pressure protection and backpressure control in industrial gas applications. It is often selected where a simple and reliable mechanical solution is preferred over more complex control systems.

With its compact construction and internal pressure registration, the valve integrates easily into existing pipelines and maintains stable performance under normal operating conditions.

Design & Operating Features

Pressure setting is adjusted through an adjusting screw, allowing for simple on-site calibration. The internal pressure registration design reduces installation complexity and helps engineers keep system layouts clean and efficient.

Different elastomer options are available to suit various temperature ranges, covering common industrial gas environments without the need for special customization.

Fisher 289

Typical Applications

The 289H is typically used in industrial gas systems requiring overpressure protection or back pressure regulation, such as general process lines and auxiliary gas control units.

Specifications

Body Sizes & Inlet Connections	1″ or 2″ NPT
Media	Gas
Pressure Registration	Internal
Pressure Setting	Adjusting screw
Temperature Ranges	• NBR / CR: -20 to 150°F (-29 to 66°C) • FKM: 20 to 300°F (-7 to 149°C)
Approximate Shipping Weight	• 1″ NPT: 4 lbs (2.0 kg) • 2″ NPT: 15 lbs (7.0 kg)

Procurement Considerations

Along with stable performance and clearly defined specifications, this model is commonly selected for its ease of sourcing. Pricing and delivery conditions are generally transparent, and supply remains consistent for both project orders and routine replacements. This makes it a practical option when evaluating suppliers and planning procurement schedules.

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.