One-Stop Valve & Pipeline Supply Services
Rui Mai Valve supports global industrial buyers, engineering contractors, and fluid control distributors with complete supply chain solutions. From standard valve procurement to customized OEM manufacturing, we handle technical selection, quality testing, and international shipping under one roof.
Our Service Process
Technical Requirement Analysis
Submit your project parameters, engineering drawings, pressure classes (PN10–PN40 / Class 150–600), connection standards (ANSI, DIN, JIS, BS), media specifications, and required delivery schedules.
Product Selection & Matching
Engineers analyze your operating conditions-including temperature ranges, flow rates, and fluid dynamics-to identify compliant valve and piping configurations.
Technical Confirmation
We verify exact material grades (Ductile Iron GGG40/50, WCB, CF8, CF8M), trim configurations, seat materials (EPDM, NBR, PTFE, Metal), structural dimensions, and actuation methods (Manual, Pneumatic, Electric).
Commercial Quotation
You receive clear, itemized pricing (FOB, CIF, or DDP) with outlined lead times, minimum order quantities, and payment terms.
Pre-Production Sample Approval
For custom production runs, physical samples or prototype verification reports are issued for inspection prior to full-scale manufacturing.
Precision Manufacturing
Production runs follow verified shop drawings, standard operating procedures, and strict quality control plans at every machining stage.
Quality Inspection & Pressure Testing
Every batch undergoes non-destructive testing, wall thickness verification, and hydrostatic shell and seat pressure testing before packaging.
Export Packaging & Shipping
Goods are secured in seaworthy wooden crates, labeled with project tags, and loaded into containers with complete export documentation.
After-Sales Support
Our engineering team remains on call for installation guidance, maintenance manuals, spare parts supply, and warranty support.
OEM & ODM Valve Solutions
We manufacture custom pipeline products according to original technical drawings, physical samples, or specific engineering requirements.
Customization Capabilities:
Private Labeling & Branding
Custom body logo casting, laser-etched stainless steel nameplates, and color-coded handwheels.
Specialized Metallurgy
Corrosion-resistant alloys including SS316L, Bronze, Duplex Stainless Steel (2205/2507), and Hastelloy.
Custom Dimensions & Ends
Non-standard face-to-face dimensions, specialized flange drilling patterns, and custom thread pitches.
Custom Packaging
Reinforced export wooden cases, individual retail boxes, and custom barcoding/QR labeling for warehouse management.
Consolidated Valve & Pipeline Sourcing
Managing multiple manufacturers for valves, strainers, and pipe fittings increases shipping fees and administrative workload. Rui Mai supplies complete piping packages through a single, accountable contact.
Product Portfolio:
• Gate Valves (Resilient Seated & Metal Seated)
• Butterfly Valves (Wafer, Lug, Flanged, Double Eccentric)
• Globe Valves
• Check Valves (Dual Plate, Swing, Lift)
• Ball Valves (Floating & Trunnion Mounted)
• Y-Strainers & Basket Strainers
• Balancing Valves
• Rubber & Fabric Expansion Joints
• Flexible Pipe Connectors
• Stainless Steel & Ductile Iron Pipe Repair Clamps
Consolidating your bill of materials into a single container load reduces ocean freight, simplifies customs clearance, and ensures consistent material standards across all components.
Technical & Engineering Selection Support
Selecting incorrect valve body trims or seat materials leads to premature seat degradation and costly system downtime. Our technical team assists in reviewing project documentation to ensure operational compliance.
Engineering Support Services:
CAD & 3D Drawing Verification: Checking dimensional clearance and flange compatibility before production starts.
Application Matching: Recommending suitable seat/disc materials for potable water, sewage, oil, steam, or slurry applications.
Standard Cross-Referencing: Mapping European (DIN), American (ANSI/API), and Japanese (JIS) valve codes for direct replacement projects.
Valves & Actuator Sizing: Calculating torque requirements for pneumatic and electric actuator mounting (ISO 5211 direct mount).
Quality Inspection & Control
Consistent quality prevents operational failures on site. We implement strict material tracing and mechanical testing at every stage of production.
Inspection Procedures:
Raw Material Verification
Optical Emission Spectrometer (PMI) testing to confirm chemical composition, paired with EN 10204 3.1 Material Test Certificates.
01
Machining & Dimensional Auditing
Precision caliper and CMM verification of critical tolerances, wall thickness, and flange facings.
02
Coating Thickness Checks
Dry Film Thickness (DFT) testing and pinhole testing on fusion-bonded epoxy (FBE) coatings.
03
Pressure Testing
100% shell hydrostatic testing and seat leak testing performed according to API 598, EN 12266-1, or ISO 5208 standards.
04
Third-Party Inspection (TPI)
Full facility access provided for independent inspection agencies including SGS, TÜV, Bureau Veritas, and Intertek.
05
Value Engineering & Cost Optimization
We work with project buyers to refine product specifications, manufacturing methods, and packaging layouts to control overall procurement spend without compromising pipeline integrity.
Cost Optimization Focus Areas:
Material Grade Efficiency
Identifying alternative alloy grades that match required pressure and corrosion specs at lower material costs.
Manufacturing Efficiency
Refining pattern design and precision casting to reduce machining operations and raw material waste.
Container Loading Optimization
Designing custom crate layouts to maximize container capacity, lowering freight cost per unit.
Order Consolidation
Bundling various pipeline accessories into single production runs to lower handling fees.
Custom Product Development
When standard off-the-shelf valves fail to meet unusual line pressures, tight spatial limits, or high-cycle demands, our foundry partners build customized solutions.
Development Process:
Technical requirement and working condition review
2D/3D CAD modeling and finite element stress analysis
Pattern and mold tooling fabrication
Prototype sample casting and precision machining
Hydrostatic testing and operational cycle verification
Client sign-off and batch production release
Pre-Production Sample Approval
To eliminate risks prior to main production, we offer sample validation protocols for custom valves, special alloys, or rebranded items.
• Standard sample dispatch for visual and dimensional check
• Custom OEM production samples
• Factory pressure test reports and material analysis sheets provided with samples
• Client feedback integration prior to volume release
Export Packaging & Logistics Coordination
International transit requires protective packaging and complete shipping documentation to clear port customs without delay.
Export Services Include:
• Heavy-duty wooden crates heat-treated according to ISPM 15 standards
• Moisture-proof barrier wrapping and rust-inhibitor coatings for long ocean voyages
• Accurate packing lists, commercial invoices, and Mill Test Certificates (MTC)
• Certificates of Origin (CO, Form E, Form F) for customs tariff preferences
• Direct container loading and port freight coordination
After-Sales & Field Support
Our responsibility continues after shipment arrival. We supply technical documentation, spare parts, and troubleshooting guidance throughout the product service life.
• Operation and maintenance manuals (O&M)
• Exploded parts diagrams and valve seal replacement kits
• Remote technical assistance for installation and field setup
• Prompt review and replacement support under standard warranty terms
Who We Serve
Our supply services are built for companies purchasing industrial valves and piping equipment worldwide:
Regional Stockists & Distributors
Sourcing consistent stock supplies with factory-direct pricing.
EPC Contractors & Project Engineers
Procurement of certified valve packages for water treatment, HVAC, and industrial plant construction.
Private Label Valve Brands
High-precision manufacturing backed by custom casting marks and branded packaging.
Municipal Waterworks Contractors
Standardized resilient-seated gate valves, butterfly valves, and check valves built to water authority standards.
Why Buyers Partner with Rui Mai
Consolidated Sourcing: Order valves, strainers, and repair clamps from one qualified manufacturer to streamline supply chain administration.
Verified Quality Control: 100% pressure testing and EN 10204 3.1 material traceability on every shipment.
OEM Customization: Dedicated pattern making, logo casting, and custom packaging.
Engineering Assistance: Direct communication with valve engineers regarding sizing, standards, and material selection.
Export Compliance: Complete shipping documentation, ISPM 15 compliant packaging, and tariff origin certificates.
Have a Valve or Pipeline Requirement?
Send us your product list, technical drawings, or project tender details. Our engineering sales team will review your specifications and provide an itemized quote within 24 hours.
Key Details to Include:
• Valve Type, Size (DN/NPS), and Quantity
• Pressure Rating (PN/Class) and Standard (DIN, ANSI, BS, JIS)
• Body, Disc, and Seat Material Requirements
• End Connection Type (Flanged, Wafer, Lug, Threaded, Welded)
• Working Medium, Operating Temperature, and Flow Conditions
• Required Project Delivery Date