AT-18/28 Desuperheater | Fast Quote & Lead Time | Ready for Steam Conditioning

Heavy duty Fisher Yarway AT-18/28 desuperheater for medium/high-pressure steam conditioning, built to adapt to boiler codes and material specs. Share your steam & spray-water conditions and we’ll match nozzle/Cv, rating, and materials quickly.

Purchase details

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Description

Fisher Yarway AT-18/28 Heavy Duty A.T.-Temp Desuperheater

Fisher Yarway AT-18/28 is a heavy-duty A.T.-Temp desuperheater for medium/high-pressure steam conditioning. Fabricated/forged construction makes it easy to match boiler code and material requirements, and it can also be used as a liquid-into-gas injector.

Key Features

Forged construction; high-quality stuffing box (asbestos-free)
Variable nozzle type; wide Cv/Kv range; special nozzle combinations available
Semi-balanced internals for economical actuator sizing; pneumatic actuator available
Pressure class/connections: ASME B16.34 Class 900–2500; EN 1092 PN 160–400
Materials: ASTM SA182 F22 / F347H / F91 (others on request)

Specifications

Item	Specification
Critical Service	Steam Conditioning
Flow Characteristics	Special Characterization, Modified Equal Percentage, Linear, Equal Percentage
Material	Alloy
Operating Temperature	High Temperature
Pressure Class	PN, ASME
Shutoff Class	Class V (FCI 70-2)
Valve Size	NPS 1 / DN 25; NPS 1-1/2 / DN 40; NPS 2 / DN 50; NPS 3 / DN 80; NPS 4 / DN 100
Valve Size Standard	DN, NPS
Valve Type	Angle Valve

Selection Guide

•Steam conditions: inlet pressure/temperature, target outlet temperature, steam flow range (normal/min/max).

•Spray water: available pressure, temperature, cleanliness/filtration.

•Connection & rating: ASME Class / PN, end connections, space/orientation.

•Control: actuator type (pneumatic), control signal, required response/stability.

【Module A: RFQ Required Checklist】

Please send these to quote correctly (avoid rework):

•Tag No. / Service / Quantity

•Steam inlet P/T, flow (min/normal/max) & required outlet temperature

•Spray water P/T and available ΔP

•Line size, rating (ASME Class / PN), end connection type

•Material requirement (e.g., F22/F91), boiler code requirement (if any)

•Actuation/control requirement (pneumatic, accessories)

Applications

•Main/aux steam desuperheating in power & process plants

•Boiler bypass / pressure-reducing + temperature control stations

•Liquid-into-gas injection duties where alloy materials are preferred

Project Support

•Model confirmation + compatible alternatives (if lead time is tight)

•Datasheet cross-check (rating/material/end connection)

•Packing for export + documentation set (COC, packing list, etc.)

【Module B: Pre-Shipment Verification Checklist】

Before dispatch, we verify:

•Nameplate/model & size/rating match PO

•Material/trim/ends match confirmed datasheet

•Accessories list (actuator, positioner, fittings) matches order

•Visual check: threads/flange faces/protection caps, packing integrity

•Photo set provided for buyer approval (upon request)

FAQ

Q1: Can it be used only for steam?

A: Primarily for steam conditioning; it can also serve as a liquid-into-gas injector in suitable materials.

Q2: What pressure classes are typical?

A: It supports high-pressure ranges such as ASME B16.34 Class 900–2500 (and PN 160–400).

Q3: What do you need for a fast quote?

A: Use the RFQ checklist in Module A—steam conditions + spray water details are the key.

Contact CTA

Send your datasheet/PO text + Module A info, and I’ll confirm configuration and quote the correct scope (unit + actuator/accessories).

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.