RF MACHINING
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Pump Components & Hardfaced Valve Trim

Browse two equal supply areas, then use the custom-components gateway or application pages for drawing-defined requirements outside the named families.

Drawing-based pump shaft sleeve example

Explore drawing-based pump and valve component categories

Primary supply area

Pump Components

Drawing-based sleeves, wear rings, bushings, balance components and special-pump parts for OEM, MRO and aftermarket requirements.

Custom Pump Shaft Sleeves & Collars

Custom pump shaft sleeves made to drawing for industrial pumps, including mechanical seal sleeves, packing sleeves, spacer sleeves, collars and bearing-related wear sleeves. RF Machining reviews fit, runout, surface finish and treatment requirements from customer drawings or samples.

  • Shaft sleeves
  • 316L / 2205 / 3Cr13
  • Drawing-based
View Custom Pump Shaft Sleeves & Collars

Pump Wear Rings / Casing Rings / Impeller Rings

Drawing-based pump wear rings for casing and impeller positions. In some pump drawings, seal ring is used as a naming variant for this hard part rather than for an O-ring, rubber seal, or mechanical-seal face.

  • Casing / impeller rings
  • Clearance control
  • Stainless / bronze
View Pump Wear Rings / Casing Rings / Impeller Rings

Pump Bushings & Guide Bushings

Drawing-based pump bushings and guide bushings for bearing, guide or throat-bushing requirements. Throat bushing is used only when the customer drawing or pump-seal-chamber context defines that application.

  • Pump bushings
  • Bronze / stainless
  • Drawing-based
View Pump Bushings & Guide Bushings

Balance Discs & Balance Rings

Drawing-based balance discs and balance rings for multistage pumps, including boiler feed pumps and other high-pressure pump applications that use axial-thrust balancing parts.

  • Multistage pumps
  • Axial thrust control
  • 3Cr13 / 2205
View Balance Discs & Balance Rings
Photos are added only when verified for this component scope.

Special Pump OEM Components

Drawing-based machined components for small and medium pump OEMs and special pump manufacturers, including canned motor, sealless, magnetic drive, chemical and LPG pump applications.

  • Pump OEMs
  • Special pump applications
  • Drawing-based
View Special Pump OEM Components

Primary supply area

Hardfaced Valve Trim

Drawing-defined valve seats, seat rings, discs and plugs with order-specific overlay, finish machining and inspection requirements.

Custom Hardfaced Valve Trim Components

RF Machining supplies drawing- or sample-based finished components, not complete valves. Responsibility for complete-valve design, the pressure-retaining boundary, assembly, pressure testing, certification and valve performance remains with the valve manufacturer or design authority. Manufacturing scope is reviewed for each trim geometry and specified working surface.

  • Valve trim
  • Hardfaced working surfaces
  • Drawing-based
View Custom Hardfaced Valve Trim Components

Custom Hardfaced Valve Seats & Seat Rings

RF Machining supplies drawing- or sample-based finished components, not complete valves. Responsibility for complete-valve design, the pressure-retaining boundary, assembly, pressure testing, certification and valve performance remains with the valve manufacturer or design authority. Seat and seat-ring terminology is applied according to the component geometry and the customer's valve drawing.

  • Valve seats
  • Seat rings
  • Finished components
View Custom Hardfaced Valve Seats & Seat Rings

Custom Hardfaced Valve Discs & Plugs

RF Machining supplies drawing- or sample-based finished components, not complete valves. Responsibility for complete-valve design, the pressure-retaining boundary, assembly, pressure testing, certification and valve performance remains with the valve manufacturer or design authority. Disc and plug terminology is applied according to the closure-member geometry identified by the customer drawing.

  • Valve discs
  • Valve plugs
  • Finished components
View Custom Hardfaced Valve Discs & Plugs

ST6 / Cobalt-Alloy Hardfacing Requirements

Custom pump and valve components requiring Stellite 6 / ST6 weld overlay, cobalt-based alloy hardfacing and finish machining. Overlay alloy and process are confirmed by drawing or RFQ, including base material, overlay area, hardness, machining allowance and inspection requirements.

  • Stellite 6 / ST6
  • Cobalt alloy hardfacing
  • Finish machining
View ST6 / Cobalt-Alloy Hardfacing Requirements

Drawing-based custom work

Drawing-Based Custom Pump & Valve Components

Use this entry for non-standard pump or valve machined components that do not fit the named component families.

Drawing-based machined components for pump and valve assemblies, including drawing-defined valve machined components, valve stems or trim components when specified, covers, threaded parts, non-standard connectors and replacement components.

Drawing-Based Custom Pump & Valve Components

Additional scope

More Components, Processes & Applications

Focused pages for hard chrome, glands, small turned parts and application-defined pump components.

Hard Chrome Sleeves

Machining support for hard chrome plated pump sleeves, collars and bearing-related wear surfaces where drawings define plating thickness, hardness, grinding, runout and surface finish.

View Hard Chrome Sleeves

Glands & Lantern Rings

Drawing-based seal glands, packing glands, lantern rings / seal cages and mechanical seal gland components for pump applications. These are machined components, not complete mechanical seal assemblies or compression packing sets.

View Glands & Lantern Rings

Washers & Turned Parts

Custom washers, spacers, distance rings and small turned parts for pump and valve assemblies, special pump OEMs, MRO repair and aftermarket replacement requirements.

View Washers & Turned Parts

Canned Motor Components

Custom machined sleeves, washers, collars, bushings and bearing-related components for canned motor pump applications, including Ni60 sprayed and ground parts when specified by customer drawings. RF Machining supplies drawing-based parts, not complete canned motor pumps.

View Canned Motor Components

Sealless & Chemical Pump Parts

Custom machined components for chemical pumps, magnetic drive pumps and sealless pump applications, including sleeves, bushings, collars, wear rings and other parts made from customer drawings.

View Sealless & Chemical Pump Parts

LPG Pump Sleeves

Custom machined sleeves, collars and wear-surface components for LPG pump applications, made according to customer drawings and technical requirements. RF Machining supplies drawing-based pump components, not complete LPG pumps.

View LPG Pump Sleeves

Request for quotation

Send drawings or sample information

Send your drawing or sample information together with material, quantity, surface-treatment and inspection requirements. Our team will review the request and reply as soon as possible.

RFQ details to include

  • Drawing or sample information
  • Material requirements
  • Order quantity
  • Surface-treatment requirements
  • Inspection requirements
  • Target delivery timing