HART INDUSTRIAL UNIONS LLC HART Industrial 1 in. FNPT Class 3000 316 Stainless Steel Threaded Union - FKM Seal, Orifice Plate O-3131-5-V-316

HART Industrial O-3131-5-V-316 1 in. FNPT Class 3000 316 Stainless Steel Threaded Union - Viton Seal, Orifice Plate The HART Industrial orifice plate union is a high-quality, Class 3000 threaded union engineered for general-purpose applications. Made from 316 stainless steel, this female threaded (FNPT) union features a Viton O-Ring seal for excellent resistance to chemicals and high temperatures. With a flat orifice plate and double O-Ring seal, this union ensures a turbulence-free fit and a reliable, leak-proof seal. Its precision-machined components and interchangeable end connections make it versatile for various piping systems. Proudly made in the USA. Note: Place desired drilled orifice bore in parentheses. For blank plate, note “(blank)”  Examples: (0.250″), (0.500″), (blank) Features Turbulence Free: Designed with a flat face for a turbulence-free connection across the seats O-Ring Isolation: O-Ring seal is strategically placed in the thread piece face, providing protection against media contact, abrasives, and erosion Precision Machined: High-quality, precision-machined components ensure leak-proof reliability Interchangeable Ends: Offers interchangeable threaded, socket weld, and butt weld ends, reducing overall costs Material Versatility: Available in a range of materials, including 316 stainless steel, for various application needs Vibration Resistance: The union’s seals withstand pressure surges and vibrations without loosening Low Maintenance: Requires no further tightening after the initial seal is made Specifications Size: 1 in. Connection Type: FNPT (Female Threaded) Material: 316 Stainless Steel Seal: Viton Class: 3000 Series: 3131 Orifice Plate: Flat Orifice with Double O-Ring Seal Downloads Product Literature (PDF Download)