Is the NPT GZ Quick-Connect Screw Coupling with Valve, Carbon Steel, PVS Type safe to disconnect under residual pressure up to 700 bar?

Yes. The NPT GZ Quick-Connect Screw Coupling with Valve, Carbon Steel, PVS Type is designed to allow safe connection and disconnection even when residual pressure remains in the system. It is engineered for extreme pressures and heavy loads, with a rated working pressure up to 700 bar and high burst resistance (2100 bar for 1/4" and 1850 bar for 3/8"). Constructed from durable carbon steel and sealed with high-quality NBR, it provides secure, leak-free performance in demanding applications such as hydraulic presses, rescue equipment, lifting systems and cutting tools. Operating temperature range (-25°C to +100°C) and available end caps further support reliable use in diverse environments.

Can the NPT GZ Quick-Connect Screw Coupling with Valve, Carbon Steel, PVS Type be used reliably at temperatures down to -25°C without sealing or performance issues?

Yes. The NPT GZ Quick-Connect Screw Coupling with Valve, Carbon Steel, PVS Type can be used reliably down to -25°C. The product description specifies an operating temperature range of -25°C to +100°C and notes sealing with high-quality NBR, indicating the coupling and seal materials are rated for that lower limit. Given its design for extreme pressure (working pressure up to 700 bar and high burst resistance) and intended applications (hydraulic presses, rescue equipment, lifting systems), it is engineered to maintain sealing and performance at -25°C. To ensure long-term reliability, verify compatibility of the specific hydraulic fluid and system components with NBR at low temperatures, and consider using end caps and routine inspection in severe service or frequent thermal cycling.

NPT GZ Quick-Connect Screw Coupling with Valve, Carbon Steel, PVS Type

All products, UHP quick couplings/

Additional information

Material	CS – steel (cast iron)

The PVS screw socket for hydraulic quick couplings is engineered for demanding applications requiring maximum reliability under extreme pressure and heavy mechanical loads. Manufactured from durable carbon steel and sealed with high-quality NBR, it ensures secure and leak-free performance even in the most challenging conditions. Designed for use in hydraulic presses, rescue equipment, lifting systems, and cutting tools, this coupling allows safe connection and disconnection even when residual pressure remains in the system, providing efficiency and safety in critical operations. With a working pressure of up to 700 bar and impressive burst resistance reaching 2100 bar for the 1/4″ size and 1850 bar for the 3/8″ size, it guarantees outstanding durability and operational security. The flow capacity of 16.4 l/min for 1/4″ and 21.3 l/min for 3/8″ ensures optimal hydraulic performance, while the wide operating temperature range from -25°C to +100°C makes it suitable for diverse environments. End caps are available separately to further protect the system and extend service life.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Price	Quantity	Actions	Catalogue
DP-PVS3-0606022	1/4" screw socket with 1/4" NPT female thread, NBR seal, with valve	-	700	In stock	0 €		Enquiry
DP-PVS3-1010022	3/8" threaded socket with 3/8" NPT female, NBR seal, with valve	-	700	In stock	0 €		Enquiry

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The PVS screw socket for hydraulic quick couplings is engineered for demanding applications requiring maximum reliability under extreme pressure and heavy mechanical loads. Manufactured from durable carbon steel and sealed with high-quality NBR, it ensures secure and leak-free performance even in the most challenging conditions. Designed for use in hydraulic presses, rescue equipment, lifting systems, and cutting tools, this coupling allows safe connection and disconnection even when residual pressure remains in the system, providing efficiency and safety in critical operations. With a working pressure of up to 700 bar and impressive burst resistance reaching 2100 bar for the 1/4″ size and 1850 bar for the 3/8″ size, it guarantees outstanding durability and operational security. The flow capacity of 16.4 l/min for 1/4″ and 21.3 l/min for 3/8″ ensures optimal hydraulic performance, while the wide operating temperature range from -25°C to +100°C makes it suitable for diverse environments. End caps are available separately to further protect the system and extend service life.