Core Summary: The PEEK balance disc seal manufactured by Dalian Allstar Material is a core component for multistage centrifugal pumps and compressors, achieving automatic compensation of rotor axial forces through precise differential pressure control. Utilizing the independently developed special material, this product significantly improves equipment volumetric efficiency and substantially extends the overall operation cycle.

Key Product Advantages:

• Innovative Material & Structure: Features the independently developed  labyrinth seal special material, combined with an optimized tooth structure design.

• High-Efficiency Sealing: Compared to traditional aluminum alloy seals, it reduces the sealing clearance by 40-60%, effectively improving equipment volumetric efficiency by 2-5%.

• Superior Physical Durability: Offers excellent self-lubricating properties and impact resistance. The teeth will not permanently deform upon contacting the shaft, and it can withstand continuous working temperatures up to 260℃.

• Cost Reduction & Extended Lifespan: Significantly reduces routine maintenance frequency, extending the stable equipment operation cycle to over 18,000 hours.

Overview: High-precision PEEK ball valve seats manufactured by Dalian Allstar Material deliver bidirectional shut-off through elastic preload and pressure-energized self-tightening, significantly outperforming traditional PTFE and metal seats in temperature resistance, cold flow resistance, torque reduction, and bubble-tight sealing.

Core Highlights:

• Working Principle: Achieves reliable bidirectional shut-off by combining an elastic preload (via O-rings, Belleville springs, etc.) with self-tightening under line pressure.

• Material & Precision: CNC-machined from pure or blended PEEK (30% GF, 30% CF, or PTFE) to strict tolerances: roughness Ra ≤ 0.8 µm, roundness ≤ 0.05 mm, and dimensional tolerance ± 0.05 mm.

• Structural Parameters: Available for floating or trunnion configurations, featuring sealing-band widths of 1.0–2.5 mm and a typical face-to-ball contact stress of 0.5–1.2 MPa.

• Versus PTFE: Resists cold flow, withstands a continuous ceiling of 260 °C, and delivers 3–5× the switching life.

• Versus Metal: Achieves bubble-tight (ISO 5208 Rate A) shut-off without lapping and cuts breakaway torque by 40–60%.

A PEEK flange bearing is a self-lubricating plain bearing with an integral flange at one end. The cylindrical body carries radial load and guides the shaft, while the flange provides axial location and carries thrust load, eliminating the separate thrust washer, snap ring or shoulder that a plain sleeve bushing requires.

• Manufacturing Process: CNC machining or compression molding from extruded stock

• Material Grades: Unfilled PEEK, GF30, CF30, or CF/PTFE tribological blend

• Bore Surface Roughness: Ra ≤ 0.8 µm

• Flange Face Flatness: ≤ 0.03 mm

• Dimensional Tolerance: ± 0.05 mm

• Operating Temperature Range: −60 °C to +260 °C

• Lubrication Modes: Dry-running, water-lubricated, or grease-lubricated

• Maintenance Requirement: Zero lubrication schedule needed

• Chemical Resistance: Resistant to a wide range of process chemistry

• Service Life: 2 to 4 times longer than traditional bronze flange bushings (in dry or minimally lubricated applications)

PEEK gear pump seal retainer strips are critical internal components installed between the pump side plate and gear end face. Manufactured by Dalian Allstar Material from high-purity PEEK polymer, they prevent medium leakage, protect against high-pressure impact, and improve volumetric efficiency. Key Specifications & Advantages:

• Core Functions:Prevents end-face leakage, protects seal gaskets, compensates for axial wear, and boosts volumetric efficiency.
• Manufacturing Precision: ±0.020 mm dimensional tolerance, ≤0.015 mm surface flatness, and Ra ≤0.8 μm roughness.
• Design & Performance: Features "L", "U", "W", or rectangular profiles; forms a 0.03–0.08 mm working clearance; offers a 0.08–0.12 friction coefficient and up to 2.8 MPa·m/s PV value.
• Material Benefits: Withstands 260°C continuous high temperatures, resists chemical corrosion, provides high mechanical strength, and features a low wear rate (1/8 of metal).
• Performance Gains: Extends service life by 3–5x, reduces leakage by 40–60%, and increases pump efficiency by 2–5%.
• Applications: Widely used in hydraulic systems, chemical process pumps, lubricating oil pumps, and fuel transfer pumps.

PEEK mechanical seal rings are precision-engineered sealing components designed for centrifugal pumps, valves, and piping systems handling water and mildly corrosive fluids. Manufactured from pure PEEK or glass/carbon fiber-reinforced PEEK via CNC machining or injection molding, they deliver excellent hydrolysis resistance, low friction, high mechanical strength, and long-term dimensional stability.

Key Applications:

• Mechanical seal auxiliary rings for centrifugal, gear, and plunger pumps
• Water treatment and RO desalination equipment
• Food & beverage CIP systems (FDA-compliant)
• Pharmaceutical purified water (WFI) systems
• Residential/commercial booster and circulation pumps

Operating Range: Continuous service at 120°C hot water, 2.5 MPa pressure, and long-term immersion. Outlasts rubber, PTFE, and ceramic alternatives.

Dalian Allstar's high-purity PEEK wear rings control internal leakage and significantly boost pump efficiency with tighter clearances than traditional metal rings.

Key Advantages:

• High Precision: Strict dimensional tolerance of ±0.015mm and surface roughness of Ra≤0.4μm.

• Enhanced Efficiency: Reduces internal leakage by 35-50% and improves overall pump efficiency by 3-7%.

• Extreme Durability: Low friction coefficient (0.08-0.15), resists dry friction damage, and withstands continuous temperatures up to 260℃.

• Extended Lifespan: Lasts 2-4 times longer than metal alternatives across chemical, petroleum, and power sectors.