Mosmatic DYF Swivel Joint Model 58.163 – Compact, high-performance rotary union featuring a 3/8″ NPTF male inlet and G3/8″ metric male outlet for reliable fluid transfer in demanding industrial applications.

Description

The Mosmatic 58.163 DYF is a high-pressure brass swivel featuring a 3/8″ NPTF inlet and a G3/8″ BSPP (male) outlet—making it ideal for connecting NPT-threaded lines to BSP-threaded tools or accessories.

This 360° maintenance-free swivel supports up to 4000 psi and includes a carbide seal, sealed bearing system, and weep holes for early detection of seal wear. Its nickel-plated brass housing ensures excellent corrosion resistance in demanding cleaning environments.

Applications

• Pressure washers with BSPP connections

• Surface cleaners and wash booms

• Car wash arms and rotating nozzles

• Industrial fluid systems needing NPT-to-G thread

Features

• 360° full rotation

• Carbide seal with weep hole alert

• Nickel-plated brass body for corrosion resistance

• Maintenance-free, sealed bearing system

• Rated up to 4000 psi

• Ideal for NPT-to-BSPP transitions

Specs

Product Type: High-pressure swivel – DYF
Part Number: 58.163
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): G3/8″ M
Nominal Width (NW): 1/4″
Wrench Size 1 (SW1): 0.87″
Wrench Size 2 (SW2): 0.75″
Diameter (D): 2.36″
Length 1 (L1): 1.49″
Length 2 (L2): 0.39″
Weight: 13.2 oz

Explore more from our collection.