Why SlurryFlo CONTROL Valves?

SlurryFlo Control Valves are custom engineered valves that centralize flow and increases performance and service life.
  • Custom engineered
  • Centralized flow
  • Extreme abrasion resistance
  • Patented trim design
  • Field replaceable wear components
  • Zero damage to valve body
  • Reduced piping wear
  • Reduced downtime and maintenance
  • State-of-the-art 3D/CFD software
  • Dozens of standard and exotic materials

Centered Flow

In comparison to traditional ‘line of site’ control valves (such as ball valves, butterfly valves and pinch valves), which direct high velocity slurry towards the valve’s body and pipe wall, SlurryFlo’s patented trim design acts as variable orifice, centering the abrasive flow. This protects the pressure containing valve body and the integrity of the downstream piping.

SlurryFlo Control Valves centralize flow which protects the valve body and downstream piping.

Custom trim designs

SlurryFlo Control Valve C1 Custom Trim Design
SlurryFlo Control Valve B1 Custom Seat Plate Design
Reduced C1
SlurryFlo Control Valve Reduced C1 Custom Seat Plate Design
SlurryFlo Control Valve C2 Custom Trim Design
SlurryFlo Control Valve Custom Trim Design
SlurryFlo Control Valve E1 Custom Trim Design

There are no 'off-the-shelf' SlurryFlo control valves; each one is manufactured with a unique seat plate design. Based on application requirements and SlurryFlo’s proprietary sizing calculations, the seat plate is waterjet cut and CNC machined to our engineers’ exact specifications.

SlurryFlo’s design philosophy is to achieve an 'equilinear' valve characteristic; however any custom flow characteristic can be achieved. There are literally infinite trim geometry possibilities. If flow conditions change over time, SlurryFlo can retrofit the existing valve with a new/revised seat plate. An alternate Cv and/or flow characteristic can be achieved without changing any other parts.

Gate PositionS

Modulating Position

SlurryFlo Control Valve in Modulating Position.

The custom seat plate works in concert with the valve's gate resulting in a centered orifice with variable control.

100% Open

SlurryFlo Control Valve in a fully open position.

If increased flow is temporarily required, the gate can be retracted beyond its normal throttling positions. The concave gate profile always matches valve's bore.

0% Open

SlurryFlo Control Valve in fully closed position.

These valves are designed for modulating, however the gate may be closed if required. The metal-to-metal seating surface provides a Class IV shutoff, blocking 99.99% of the valve's rated Cv.


12 to 60 inch valves

The gate and seat plate are available in dozens of standard and exotic metallurgies. These trim components are then coated with a state-of-the-art hard overlay, such as tungsten carbide (applied via PTAW process). This provides a corrosion proof trim that resists abrasion incredibly well.

SlurryFlo Control Valves trim components use tungsten carbide overlay to reduce wear and corrosion,

3 to 10 inch valves

SlurryFlo's small diameter control valves incorporate a unique wear technology. In place of hard coated metal parts, the gate and seat plate are made entirely of sintered tungsten carbide. The end result is a valve with trim components that approach the hardness and wear resistance of diamond.

Smaller SlurryFlo Control Valve trims are made entirely of sintered tungsten carbide.

Replaceable Trim

Due to SlurryFlo's patented design, only the trim components are exposed to erosive flow. Once they do eventually wear out, the parts can be field replaced to reset the service life clock.

Each trim replacement essentially provides a new valve at a fraction of the cost.

Similarly, if flow conditions ever change, a new seat plate can be specified to provide an increase or decrease in flow. There is no need to replace the entire valve assembly (often the case with other valve designs).

SlurryFlo Control Valve have replaceable seat plates which reduces downtime and labour costs of replacing entire valves.

Packing Design

SlurryFlo's bonneted gate design allows for a compact stem seal assembly (i.e. around the gate stem). This set-up reduces operating thrust requirements, provides more precise gate modulation and minimizes potential leakage. SlurryFlo engineers select the proper packing and scraper materials based on fluid composition. The entire stack is then energized by a packing follower that is live loaded with Belleville springs.

SlurryFlo's bonneted gate design allows for a compact stem seal assembly.

Control Valve Automation

All SlurryFlo control valves are designed and manufactured in Canada, allowing our engineering team to adapt the top plate to suit any actuator type, brand and model. There is no limit to the level of complexity and technology we can incorporate into each valve.

SlurryFlo Control Valves can adapt the top plate to suit any actuator type, brand or model.

patented design

SlurryFlo's unique variable orifice control valve technology is patented in Canada and the United States of America.
SlurryFlo control valve technology is patented in Canada and United States.

Canadian patent number: CA 2 489 079
United States patent number: US 7,431,264 B2

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