Product Description
The Mosmatic 58.151 DYF Swivel is a high-performance rotary union for high-pressure cleaning systems. Featuring a 3/8" NPTF inlet and a 1/4" NPTM outlet, it offers a step-down connection ideal for transitioning between larger inlet hoses and smaller nozzles or spray lances.
Its nickel-plated brass body, combined with stainless steel internals and a carbide seal system, delivers smooth 360° rotation, reliability under high pressure, and long service life. Built for operating pressures up to 4000 psi, it includes weep holes to indicate seal wear or failure.
Applications
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Pressure washers and mobile wash systems
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Car wash underbody and boom systems
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Industrial fluid transfer setups
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Rotating nozzles with step-down connections
Features
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Full 360° swivel with sealed bearing system
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Carbide seal for durability and performance
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Step-down: 3/8" to 1/4" threading
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Maintenance-free design
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Visual seal failure detection
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Nickel-plated brass body for corrosion resistance
Specs
Product Type: High-pressure swivel – DYF
Part Number: 58.151
Pressure: 4000 psi
Temperature: 250°F
RPM: max. 2,000 rpm
Material Type: Brass, nickel plated
Inner Part: Stainless steel
Seal: Carbide
Throughput / Medium: pH 3–12 / filtered 10 microns / compressed air (290 psi)
Thread In (G1): 3/8" NPTF
Thread Out (G2): 1/4" NPTM
Nominal Width (NW): 1/4"
Wrench Size 1 (SW1): 0.87"
Wrench Size 2 (SW2): 0.67"
Diameter (D): 2.36"
Length 1 (L1): 1.45"
Length 2 (L2): 0.43"
Weight: 11.0 oz
