Fisher DST-G Trim丨Outgassing Control丨Erosion-Resistant Performance

Fisher DST-G trim is engineered for outgassing and dirty service to help reduce cavitation and erosion. Ideal for high ΔP services such as separator letdown where long-term reliability matters.

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Description

Fisher DST-G Trim

Fisher DST-G trim is designed for clean or dirty services where dissolved gases are released due to a pressure reduction (outgassing), helping reduce damage mechanisms such as cavitation and erosion. It uses staged pressure drop plus a special slotted lower cage to break the stream into smaller, lower-energy jets—minimizing wear and improving service life.

Key Features

•Built for outgassing services with dissolved gas release.

•Staged pressure drop to help prevent cavitation.

•Slotted lower cage to reduce erosion from entrained gas.

•Suitable for dirty service scenarios (final suitability depends on actual process conditions).

Specifications

specifications	details
Critical Service	Outgassing, Dirty Service
Material	Carbon Steel, Stainless, Alloy
Operating Temperature	Standard Temperature
Pressure Class	ASME
Process Connection Type	Flanged
Shutoff Class	Class V (FCI 70-2)
Valve Size	NPS 2, NPS 3, NPS 4, NPS 6, NPS 8, NPS 10, NPS 2×3, NPS 3×4, NPS 6×8
Valve Size Standard	NPS
Other Configurations	Contact your local Emerson business partner or sales office to learn about additional specifications or options for this product.

Selection Guide

Please share fluid composition, P1/P2 & T1/T2, ΔP, flow range, line size, end connection, and any requirements for shutoff class/actuator/positioner so we can size and configure correctly.

Applications

Commonly used in separator letdown and other severe services prone to outgassing + cavitation/erosion.

Project Support

We can support sizing & configuration, project documentation alignment (datasheet/inspection docs/cert needs), and provide a stable delivery plan subject to order confirmation and availability.

FAQ

•DST-G vs. DST—what’s the difference?DST-G adds a slotted lower cage to better control erosion from entrained gas while staging the pressure drop.

•Is it suitable for dirty service?It can be, but we must confirm with solids content/size and process details.

•What do you need for a quote?Process conditions + size/class/ends + desired configuration (actuator/positioner).

Contact CTA

Send your datasheet/process conditions—we’ll propose the right configuration, lead time, and a competitive quote.

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.