Pump Parts Stainless Steel Manifold for Diaphragm Pump

The Pump Parts Stainless Steel Manifold for Diaphragm Pump is a precision-engineered fluid distribution component designed to optimize the performance of diaphragm pumps in metering, dosing, and high-purity applications. Manufactured from 316L (UNS S31603), 254 SMO (UNS S31254), or Hastelloy® C-276 (UNS N10276) via CNC machining or investment casting, these manifolds feature smooth internal channels and leak-free connections to ensure accurate fluid control and minimal pressure drop.

Engineered for tight tolerance fits (ISO H7) and chemical compatibility, the manifolds support both single- and multi-head diaphragm pumps, with optional integrated pressure sensors and flow meters for automated process control. They meet standards like FDA 21 CFR Part 117, 3A Sanitary, and API 675, ensuring reliability in critical fluid handling.

Diaphragm pumps are used in a wide range of application scenarios. With strong design capabilities, we can optimize the design to meet specific customer requirements, such as adjusting the flow path structure to improve efficiency or minimize turbulence. Additionally, our precise casting technology ensures the accuracy and surface finish of the internal flow paths.

Leak-Free Design: Electron-beam welded or brazed joints (with 100% helium leak testing) provide gas-tight seals (≤1x10⁻⁹ mbar·L/s), ideal for volatile, toxic, or expensive media such as pharmaceuticals and specialty chemicals.

Flow Uniformity: CFD-optimized channel geometries (aspect ratio 1:1 to 3:1) reduce turbulence and ensure consistent flow distribution across pump heads, achieving metering accuracy ±0.5% of full scale.

Material Compatibility Matrix: 316L for general chemicals, 254 SMO for chloride-laden solutions (≤50,000 ppm Cl⁻), and Hastelloy C-276 for concentrated acids (e.g., formic, acetic) and oxidizing agents.

Modular Configuration: Removable end caps and interchangeable port adapters (NPT, BSPP, sanitary clamps) allow quick reconfiguration for different pump models and process requirements, reducing downtime by 30%.

Manifolds in diaphragm pumps serve as critical flow distribution components, directing fluid between the pump’s inlet/outlet ports and the diaphragm chambers. They ensure balanced pressure and smooth flow transitions during both suction and discharge cycles. By connecting the check valves and chambers, manifolds optimize fluid routing, minimize pressure loss, and enhance overall pumping efficiency.

Diaphragm pumps are widely used across various industries due to their ability to handle challenging fluids. Key applications include the chemical, food, pharmaceutical, and other industries, where they are suitable for conveying high-viscosity fluids, fluids containing solid particles, or corrosive media.

Pharmaceutical Dosing: Used in diaphragm pumps for precise injection of APIs, excipients, and cleaning agents, with electropolished 316L manifolds meeting cGMP and USP Class VI standards for direct drug contact.

Chemical Process Industry: Controls the flow of corrosive catalysts, solvents, and monomers in polymerization reactors, where Hastelloy C-276 manifolds resist pitting from hydrofluoric acid (HF) and bromide solutions.

Water Treatment: Integral to metering pumps for dosing flocculants, disinfectants, and anti-scalants, with 254 SMO manifolds enduring high-chloride (≥10,000 ppm Cl⁻) and high-pH (12-14) environments.

Semiconductor Fabrication: Transfers ultra-pure chemicals (e.g., sulfuric acid, hydrogen peroxide) in wafer cleaning systems, with passivated 316L manifolds ensuring particle-free flow and low total organic carbon (TOC) levels.

Q: What is the maximum pressure rating for these manifolds?

A: Standard designs handle up to 100 bar (1,450 PSI); high-pressure variants (up to 300 bar/4,350 PSI) are available with thickened walls and reinforced flanges for hydraulic applications.

Q: Can the manifold be customized for multi-head pump systems?

A: Yes—custom designs support 2 to 8 pump heads, with flow distribution baffles and pressure equalization channels to ensure balanced performance across all heads.

Q: How is the manifold cleaned in food-grade applications?

A: It is compatible with CIP/SIP systems, using 80°C (176°F) alkaline cleaners or steam sterilization, with electropolished surfaces (Ra ≤ 0.8μm) facilitating quick residue removal.