D-3131-4-V-CS HART Sure Seal Ring Unions

Review HART Sure-seal Ring Unions And 3/4 In Class 3000 Lot Of New

The Hart D-3131-4-V-CS Sure-Seal Ring Unions are a premium quality fluid connection solution designed for various industrial applications. These ring unions are part of Hart's Sure-Seal line, which is known for its reliable sealing performance and durability.

These ring unions are available in size 3/4 and pressure class 3000, making them suitable for medium to high-pressure fluid transfer systems. The four-bolt design provides excellent torque distribution, ensuring a secure and leak-free connection.

The D-3131-4-V-CS ring unions are constructed from carbon steel material, which offers good strength and resistance to corrosion. The body and bolting are finished with a black industrial coating for added protection against environmental conditions.

The ring unions feature a tapered bore design that allows for easy assembly and disassembly. The tapered seal design ensures a positive seal, preventing leaks even under high-pressure conditions. The unions are also suitable for use with a wide range of fluids, including water, gases, and hydraulic fluids.

The Hart D-3131-4-V-CS Sure-Seal Ring Unions are ANSI/ASME B16.5 compliant, ensuring they meet the highest industry standards for design, materials, and manufacturing. They are also interchangeable with other major brands, making them a versatile choice for industrial applications.

In summary, the Hart D-3131-4-V-CS Sure-Seal Ring Unions are a reliable and robust fluid connection solution for industrial applications. Their four-bolt design, tapered bore, and carbon steel construction make them suitable for high-pressure applications, while their compliance with industry standards ensures their quality and reliability.

Hart D-3131-4-V-CS Sure-Seal Ring Unions 3-V-CS 3/4 3000 are compression-style ring unions used for joining and sealing pipes or tubes in various industrial applications. Here are some pros and cons of buying these ring unions:

1. Leak-Free Seal: These ring unions offer a reliable, leak-free seal due to their double-sealing design. The compression ring and the O-ring provide an additional seal, ensuring no leaks even under high-pressure conditions.

2. Easy Installation: Ring unions have a simple design, making them easy to install and disassemble. They can be tightened using a wrench or a spanner, and the compression ring ensures a tight seal without over-tightening.

3. Versatile: These ring unions are suitable for various applications and can be used with different types of pipes, including carbon steel, stainless steel, and copper. They can also be used with different fluid media, such as water, steam, and chemicals.

4. Durable: Hart's Sure-Seal ring unions are built to last. They are made from high-quality materials, including carbon steel and brass, and have a corrosion-resistant finish.

5. Cost-Effective: Ring unions are a cost-effective solution for piping applications that require frequent disassembly or where leaks are a concern. They eliminate the need for expensive welding or threading.

1. Limited Pressure Ratings: These ring unions have a maximum pressure rating of 3000 psi. If your application requires a higher pressure rating, you may need to consider other types of unions, such as welded unions or high-pressure ring unions.

2. Size Limitations: These ring unions are only available in specific sizes, including 3/4 inch. If you require a different size, you may need to consider alternative options.

3. Requires Proper Installation: Ring unions require proper installation to ensure a tight seal and prevent leaks. Improper installation can result in leaks or damage to the ring union.

4. May Not Be Suitable for High-Temperature Applications: The maximum operating temperature for Hart's Sure-Seal ring unions is 350 F. If your application requires a higher temperature, you may need to consider other types of unions, such as high-temperature ring unions or welded unions.

Hart D-3131-4-V-CS Sure-Seal Ring Unions 3-V-CS 3/4 3000 are a reliable and cost-effective solution for various piping applications. Their double-sealing design ensures a leak-free seal, and they are easy to install and disassemble. However, they have size and pressure limitations, and may not be suitable for high-temperature applications.

If you require a leak-free solution for joining and sealing pipes or tubes in a 3/4 inch size and with a maximum pressure rating of 3000 psi, Hart D-3131-4-V-CS Sure-Seal Ring Unions 3-V-CS 3/4 3000 are a great option. However, if you require a different size, pressure rating, or temperature rating, you may need to consider alternative options, such as welded unions or high-pressure ring unions. Always ensure proper installation to ensure a tight seal and prevent leaks.

Details:

Manufacturer: Hart model: D-3131-4-V-CS / d-3131-3-v-cs: qty of 5 dielectric insulated o-ring pipe union details: fitting type. Material: carbon steel. Mpn: D-3131-4-V-CS / d-3131-3-v-cs. Hart sure-seal ring unions D-3131-4-V-CS 3-V-CS 3/4 in.

Connection type: fnpt female threaded. Fnpt class 3000 lot of 5.

specifications pipehosefit:

• brand: Hart
• mpn: D-3131-4-v-cs
• model: D-3131-4-v-cs / D-3131-3-v-cs
• part type: Seal Ring
• dielectric strength: 600 Volts/mil
• size d-3131-4-v-cs and d-3131-4-v-cs: 3/4 In 1/2 In
• connection type: Fnpt
• coating thickness: 3-6 Mil
• seal: Viton
• class: 3000
• material: Carbon Steel
• fitting type: Union

returns pipehosefit:

• time: 30 days
• method: money back
• paid by: seller
• policy: returns accepted

offer pipehosefit:

• best offers: true
• options: ship-to-home
• in stock #: 1
• price: $999.99
• item condition: New
• sold #: 15
• started: february 21, 2026
• availability: in stock

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• city: los angeles, california
• # reviews: 8931
• rating: 99.9%

general pipehosefit:

• category: Business & Industrial > Adapters > Pipe Hose > Threaded Fittings

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