Φ125-133 Normal Expansion 8x120 Shaft Coupling - High Torque Flexible Connector [Brand Model Series]

Φ125-133 expansion bushing

Normal expansion flange

8x120 hydraulic coupling

[Φ125-133]+Normal expansion 8*120

Φ125-133 expansion bushing, Normal expansion flange, and 8x120 hydraulic coupling designed for heavy-duty applications, ensuring secure connections and durability in hydraulic systems. Compact integration optimizes performance.

Specification

SEODescription

The Φ125-133 expansion bushing is a robust hydraulic coupling component designed for pipeline systems requiring axial compensation, paired with a Normal expansion flange for secure sealing in dynamic pressure environments. The 8x120 hydraulic coupling features eight M12 mounting bolts arranged in a 120mm PCD pattern, enabling direct integration with standard industrial pipe networks. It operates under 16-25 MPa pressure ranges and withstands temperatures from -30°C to +120°C, using corrosion-resistant carbon steel construction. Widely applied in petrochemical, water treatment, and heavy machinery sectors, this assembly offers high torsional rigidity and vibration dampening but requires periodic bolt torque checks due to thermal expansion effects. Its modular design simplifies maintenance while ensuring leak-free performance under cyclic loading conditions.

SEOSpecification

Parameter	Specification
Φ125-133 Expansion Bushing Inner Diameter	125 mm - 133 mm
Φ125-133 Expansion Bushing Outer Diameter	140 mm - 150 mm
Normal Expansion Flange Type	ANSI Standard Flange
Normal Expansion Flange Bolt Holes	8 Holes (Equally Spaced)
8x120 Hydraulic Coupling Thread Size	M8x1.5 mm
8x120 Hydraulic Coupling Maximum Flow Rate	50 L/min
Expansion Bushing Material	Carbon Steel (Grade 1045)
Flange Pressure Rating	PN16 (16 Bar)
Hydraulic Coupling Operating Pressure	250 Bar
Temperature Tolerance Range	-20°C to +120°C
Installation Torque	350 Nm
Product Model Code	Φ125-133+Normal expansion 8*120

SEOQandA

question:Can you provide shipment photos and purchase dates for similar products?
answer:Yes, we can provide shipment photos and purchase dates upon request.
question:Do you offer technical selection services?
answer:Yes, we provide technical selection services to help you choose suitable products.
question:What shipping methods do you support?
answer:We support DHL, FedEx, UPS, and other major shipping methods.

SEOQandA_Product

question:Installation difficulty due to misalignment?
answer:Verify pipe alignment and use proper guides to ensure correct positioning during installation.
question:Premature wear in aggressive environments?
answer:Confirm material compatibility with media; upgrade to corrosion-resistant alloys if necessary.
question:Excessive leakage at connection points?
answer:Inspect sealing surfaces for damage and tighten flange bolts evenly to specified torque.
question:Insufficient expansion compensation under pressure?
answer:Check system pressure against rated specs; replace with higher-pressure model if exceeded.
question:Fatigue cracks from repeated cycles?
answer:Evaluate cycle frequency; install additional supports or use a model with higher cycle resistance.