VALVEBUYER.COM

Nationwide Industrial Valve Purchasers | 954-466-3107

Flowserve 4" Class 300 Butterfly Valve

WCB Carbon Steel | Est. 101 lbs

Brand
Flowserve
Type
Butterfly Valve
Size
4"
Class
300
Material
WCB Carbon Steel
Weight
~101 lbs
Connection
Flanged RF
Retail New
$1,200

We Buy This Valve

Estimated purchase prices by condition:

EXCELLENT

$680

GOOD

$360

SCRAP

$120
Call Now: 954-466-3107

About the Flowserve 4" Class 300 Butterfly Valve

The Flowserve 4" Class 300 butterfly valve in WCB Carbon Steel is a widely-used industrial valve found in refineries, power plants, chemical processing facilities, and pipeline systems throughout the United States. This valve is designed for 300-class service, providing reliable shutoff in demanding applications.

At approximately 101 pounds, this valve represents significant material value even in scrap condition. In excellent or new surplus condition, the Flowserve brand commands premium resale prices due to its reputation for quality and reliability in critical service applications.

Specifications

ParameterValue
ManufacturerFlowserve
Valve TypeButterfly Valve
Nominal Size4 inches
Pressure RatingASME Class 300 (480 PSI WOG approx.)
Body MaterialWCB Carbon Steel
End ConnectionRaised Face Flanged (RF)
Approximate Weight101 lbs
Temperature Range-20°F to 800°F (material dependent)
Estimated New Retail$1,200

Selling Your Flowserve Butterfly Valve

ValveBuyer.com purchases Flowserve butterfly valves in any condition. Whether your valve is new surplus sitting in a warehouse, used but functional from a recent turnaround, or non-operational scrap, we provide competitive offers based on current market conditions.

What We Need to Quote Your Valve

Our Process

  1. Contact Us — Call 954-466-3107 or submit the form below
  2. Get Quoted — Same-day offers based on current market value
  3. Free Pickup — We arrange and pay for all freight/logistics
  4. Get Paid — Payment within 24-48 hours of receipt

Frequently Asked Questions

Do you buy Flowserve 4" butterfly valves?

Yes, we buy Flowserve 4" Class 300 butterfly valves and all similar models in any condition. Contact us for a specific quote on your valve.

How much is a Flowserve 4" Class 300 butterfly valve worth?

A Flowserve 4" Class 300 butterfly valve in WCB Carbon Steel is worth approximately $680 in excellent condition, $360 in good/used condition, and $120 for scrap. Exact value depends on specific model, age, and current market conditions.

Do you pick up valves?

Yes, we arrange freight pickup anywhere in the US at no cost to you. This valve weighs approximately 101 lbs and we handle all logistics.

What if my valve is damaged or non-functional?

We still buy it. Non-functional valves have value for parts, refurbishment, or material recovery. A 4" WCB Carbon Steel valve body alone has significant scrap metal value.

Get a Quote for Your Flowserve Butterfly Valve

Expert Repair & Failure Analysis

What Usually Goes Wrong

Wedge/Disc Erosion: Gate or disc erodes from high-velocity steam or water. Wire-drawing creates channels that prevent tight shutoff. Extremely common in power plant extraction and drain valves after 5-10 years.

Repair: Weld overlay and re-machine seating surfaces. Stellite 6 hardfacing for steam service. If body erosion exceeds allowable wall thickness, valve must be replaced. Lead time: 3-6 weeks for weld repair.

Backseat Leak: Backseat fails to seal when valve is fully open, allowing packing to be pressurized. Prevents online packing replacement. Common in older Edward gate valves.

Repair: Re-machine backseat in-situ or remove valve for shop repair. Backseat lapping requires specialized tooling. Lead time: 2-4 weeks.

Repair Lead Time

Standard repair: 3-6 weeks — full inspection, machining, testing

💡 In most cases, selling as-is to ValveBuyer.com is faster and more economical than third-party repair. We buy valves in ANY condition. Call 954-466-3107 for an instant quote.