Fluid end ZTA

Product Overview:
INNOVACERA’s ZTA ceramic composite pump cylinder liner is a core wear-resistant component for the hydraulic end of mud pumps, designed for extreme conditions such as oil & gas drilling and shale gas fracturing. The liner uses a composite structure of metal shell + ZTA (zirconia toughened alumina) ceramic liner, combining metal toughness with ceramic hardness. Compared with conventional dual-metal liners, it offers markedly improved wear and corrosion resistance to extend equipment life in high-pressure, high-sand-content mud environments. The micrometer-level precision inner bore machining also protects piston seals, helping drilling operations reduce maintenance and increase uptime.

Advantages:

• Extended service life: ZTA ceramic provides very high hardness and superior wear resistance versus standard metal liners, reducing replacement frequency.
• High impact resistance: Composite structure combines metal toughness and ceramic hardness to withstand high-pressure reciprocating impacts.
• Precise sealing: Inner bore machined to micrometer accuracy with high surface finish to protect piston sealing components, reduce leakage and improve pump efficiency.
• Corrosion and temperature resistance: Resistant to erosion from sand-laden drilling fluids and temperature variations from frequent start/stop cycles.

Technical Specifications:

• Inner lining material: ZTA Ceramic (Zirconia Toughened Alumina)
• Shell material: 304 stainless steel or high-strength steel
• Processing accuracy: micrometer-level precision
• Applicable conditions: high pressure, large flow, high sand-content mud environments

Application fields:

• Oil and gas drilling
• Shale gas fracturing
• Offshore platforms

ZTA Material Properties:
(Zr+Hf)O₂ | wt% | 19.03
Al₂O₃ | wt% | 79.87
Y₂O₃ | wt% | 1.06
Density | g/cm³ | 4.24
Hardness | HV | 1475
Elastic Modulus | GPa | 250
Flexural Strength | MPa | 400
Fracture Toughness | MPa·m¹/² | 6
Coefficient of Thermal Expansion | 10⁻⁶/℃ (20-400°C) | 9.0
Grain Size | μm | <5
Impact Resistance Temperature | ℃ | 450

Features / Technical specifications:

• Inner lining material: ZTA Ceramic (Zirconia Toughened Alumina)
• Shell material: 304 stainless steel or high-strength steel
• Processing accuracy: micrometer-level precision inner bore
• Applicable conditions: high pressure, large flow, high sand-content drilling mud environments
• Hardness: 1475 HV
• Density: 4.24 g/cm³
• Elastic Modulus: 250 GPa
• Flexural Strength: 400 MPa
• Fracture Toughness: 6 MPa·m¹/²
• Coefficient of Thermal Expansion (20-400°C): 9.0 × 10⁻⁶/℃
• Grain Size: <5 μm
• Impact Resistance Temperature: 450 ℃