Valve Parts and Castings — Precision Components and Custom Assemblies to Customer Specification

SMI manufactures valve parts and castings to customer drawing and technical specification — covering valve bodies, bonnet castings, valve blocks, pipe fittings and associated precision machined components. The majority of supply is cast and machined components for integration into the customer’s own valve assemblies. A smaller volume of complete custom valve assemblies is also produced where customers require a fully assembled and tested unit to their specification.

Materials span grey iron, ductile iron, carbon steel, stainless steel and brass — selected to the fluid handled, pressure rating, temperature and corrosion requirements of each application. Every component is produced to the customer’s own engineering drawing or specification, with dimensional inspection report and material certification supplied as standard.

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Components and Assemblies Manufactured

Valve Body Castings

Cast valve bodies in grey iron, ductile iron, carbon steel and stainless steel — covering globe valves, gate valves, ball valves, butterfly valves and check valves in standard and custom configurations. Pressure-retaining wall thickness, bore dimensions, flange face machining and port geometry are produced to the customer’s engineering drawing and applicable pressure standard — ASME, EN, JIS or customer-specific.

Changeover and Directional Valve Bodies

Large-format changeover valve bodies and directional control valve castings — as shown in the gallery above — for industrial process and fluid power applications. Complex internal geometry, multiple port configurations and large flange faces require careful casting design and controlled machining to achieve the dimensional accuracy required for correct valve function. SMI’s casting and machining capability covers these more demanding geometries.

Duplex Valve Bodies

Duplex and multi-port valve body castings for applications requiring multiple flow paths in a single body — including duplex strainer bodies, duplex filter housings and multi-way valve bodies for marine, offshore and industrial process systems.

Hydraulic and Pneumatic Valve Blocks

Multi-port valve blocks and manifold bodies — cast and precision machined to the port layout, bore dimensions and pressure rating specified in the customer’s drawing. Both iron and brass valve blocks are shown in the gallery, covering industrial hydraulic and marine/fluid system applications respectively.

Pipe Elbows and Fittings

Cast pipe elbows, tees and reducers in grey iron, ductile iron and carbon steel — flanged or plain end configurations to customer drawing. Flange face machining and bore dimensions produced to ASME, EN or customer-specified standards.

Rotary Valve Casings

Large-format rotary valve body castings with dual flanged openings — for bulk material handling, industrial process and energy sector rotary valve applications. The complex geometry of rotary valve casings requires careful pattern design and controlled casting practice to achieve consistent wall thickness and accurate flange alignment.

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Materials

Material	Typical Application	Notes
Grey iron	General industrial valves, low to medium pressure	Cost-effective for non-corrosive service
Ductile iron	Higher pressure industrial and water service valves	Improved impact resistance over grey iron
Carbon steel	High pressure industrial and energy sector valves	ASTM A216 WCB and equivalent grades
Stainless steel	Corrosive fluid service, food and pharmaceutical	CF8M and equivalent grades available
Brass / bronze	Marine, seawater and potable water service	Corrosion resistance for wet and marine environments
Customer-specified	Special fluid or pressure requirements	Material certification supplied as standard

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Application Sectors

• Oil and gas — upstream wellhead and manifold valves, downstream refinery and pipeline valves
• Marine and offshore — seawater service valves, ballast and bilge systems, deck fittings and fire suppression systems
• Power generation — steam and feedwater valves, cooling water systems and turbine auxiliary valves
• Chemical and petrochemical processing — corrosive fluid service, high temperature and high pressure applications
• Industrial hydraulics and pneumatics — valve blocks, manifolds and directional control valve bodies
• Water and fluid handling — industrial process water, irrigation and fluid transfer systems

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OEM and Custom Supply

SMI’s valve component manufacturing service is available to valve manufacturers, system integrators and industrial equipment OEMs requiring:

• Casting to drawing — valve bodies and components produced to the customer’s pattern or 3D model
• Machining to drawing — precision machining of cast components to the customer’s dimensional and tolerance specification
• Complete valve assembly — fully assembled custom valve units to customer specification, available for customers requiring a complete assembly rather than individual components
• Pressure testing — hydrostatic and pneumatic pressure testing to customer-specified test pressure and procedure
• Quality documentation — dimensional inspection report, material certification, pressure test certificate as required
• Spare parts supply — ongoing replacement component supply alongside new equipment orders

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بالعربية — قطع الصمامات والمسبوكات حسب مواصفات العميل

تقوم SMI بتصنيع قطع الصمامات والمسبوكات وفقاً لرسومات العملاء والمواصفات التقنية — تشمل أجسام الصمامات، وصمامات التحويل، وأجسام الصمامات المزدوجة، وكتل الصمامات الهيدروليكية، وأغلفة الصمامات الدوارة، والمكونات المُشغَّلة بدقة. المواد تشمل الحديد الزهر والفولاذ الكربوني والفولاذ المقاوم للصدأ والنحاس الأصفر. للاستفسار، تواصل مع فريق SMI →

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En Español — Componentes de Válvulas y Fundiciones según Especificación del Cliente

SMI fabrica componentes de válvulas y fundiciones según los planos y especificaciones técnicas del cliente — incluyendo cuerpos de válvulas, válvulas de cambio, cuerpos de válvulas dúplex, bloques de válvulas hidráulicas, carcasas de válvulas rotativas y componentes mecanizados de precisión. Los materiales incluyen hierro fundido, acero al carbono, acero inoxidable y latón. Para consultas, contacte al equipo de SMI →

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Auf Deutsch — Ventilteile und Gussteile nach Kundenspezifikation

SMI fertigt Ventilteile und Gussteile nach Kundenzeichnung und technischer Spezifikation — einschließlich Ventilgehäuse, Umschaltventile, Doppelventilgehäuse, Hydraulikventilblöcke, Drehventilgehäuse und präzisionsbearbeitete Komponenten. Werkstoffe umfassen Grauguss, Kohlenstoffstahl, Edelstahl und Messing. Für Anfragen, kontaktieren Sie das SMI-Team →

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Related Products — SMI Precision Castings and Machined Components

• Industrial Pump Parts and Castings — precision components to customer specification
• Hydraulic Parts and Castings — OEM hydraulic components to customer drawing
• Contact SMI — Valve Parts Enquiry →

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Request a Consultation

To discuss valve component casting and machining requirements, please provide the following at enquiry stage:

• Component type — valve body, bonnet, valve block, pipe fitting or complete assembly
• Material specification — grade and applicable standard
• Pressure rating — design pressure, test pressure and applicable pressure standard
• Key dimensions and weight — drawing preferred
• Fluid handled — relevant to material selection and sealing requirements
• Surface finish and treatment requirements
• Annual volume — pieces per year
• Quality documentation requirements — material cert, dimensional report, pressure test certificate

SMI will respond with a written technical assessment and commercial proposal. Contact SMI — Valve Parts Enquiry →