Is the Pneumatic quick-connect socket DN5,3 with GZ, carbon steel, CEJN 310 STANDARD compatible with both BSPT and NPT thread systems?

Pneumatic quick-connect socket DN5,3 with GZ, carbon steel, CEJN 310 STANDARD is offered in a STANDARD version with external BSPT or NPT thread for versatile industrial use. That means the same model is available with either BSPT (British Standard Pipe Taper) or NPT (National Pipe Taper) external threads, but a single connector is manufactured to one thread standard only. Although external threads are coated with a sealing compound and the coupling meets ISO 6150B and A-A59439 standards, BSPT and NPT are different taper/thread forms and are not directly compatible with each other. You must select the version matching the thread type of your mating component (BSPT to BSPT, NPT to NPT) to ensure proper sealing and safe operation.

Can Pneumatic quick-connect socket DN5,3 with GZ, carbon steel, CEJN 310 STANDARD be safely used in food-industry pneumatic systems?

Pneumatic quick-connect socket DN5,3 with GZ, carbon steel, CEJN 310 STANDARD is not ideal for direct use in foodâindustry pneumatic systems. Reasons: carbon/galvanized steel is not foodâgrade and can corrode or shed particles; external thread sealing compound may not be foodâsafe; neither material nor surface finish meet common food standards (e.g., FDA, EU food contact, 3A); design is for general industrial pneumatic use, not hygienic/cleanable sanitary environments. If used only outside product contact zones, with adequate filtration, corrosion protection and documented foodâsafe sealing materials, risk can be reduced-but for direct or sanitary applications choose couplings specifically certified for food use (stainless steel, foodâgrade seals, relevant certifications).

Can Pneumatic quick-connect socket DN5,3 with GZ, carbon steel, CEJN 310 STANDARD be used at temperatures down to -20Â°C and up to +100Â°C?

Yes. Pneumatic quick-connect socket DN5,3 with GZ, carbon steel, CEJN 310 STANDARD is specified for an operating temperature range from -20Â°C to +100Â°C, so it can be used safely within those temperatures. Ensure other system components (seals, hoses, fluids) are also rated for that range and follow applicable installation and safety guidelines.

Pneumatic quick-connect socket DN5,3 with GZ, carbon steel, CEJN 310 STANDARD

All products, General-purpose low-pressure quick couplings/

Additional information

Material	CS – steel (cast iron)

CEJN series 310 quick coupling socket (DN 5.3) in STANDARD version with external BSPT or NPT thread for versatile use in the industry, mainly in pneumatic installations. Operated with one hand with minimal force required for connection. Manufactured according to ISO 6150B and A-A59439 standards (former U.S. MIL C4109 1/4″ standard). External threads are coated with a sealing compound. Working pressure: 16 bar. Burst pressure: 140 bar. Operating temperature: from -20°C to +100°C. Flow rate: 925 l/min (Pe = 6 bar, Δp = 0.5 bar). Material: galvanized steel.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
CJ-103101154	CEJN 310 quick coupling socket with GZ 3/8" BSPT	-	16	In stock	Enquiry
CJ-103101452	CEJN 310 quick coupling socket with 1/4" NPT female thread	-	16	In stock	Enquiry
CJ-103101455	CEJN 310 quick coupling socket with GZ 1/2" NPT	-	16	In stock	Enquiry

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CEJN series 310 quick coupling socket (DN 5.3) in STANDARD version with external BSPT or NPT thread for versatile use in the industry, mainly in pneumatic installations. Operated with one hand with minimal force required for connection. Manufactured according to ISO 6150B and A-A59439 standards (former U.S. MIL C4109 1/4″ standard). External threads are coated with a sealing compound. Working pressure: 16 bar. Burst pressure: 140 bar. Operating temperature: from -20°C to +100°C. Flow rate: 925 l/min (Pe = 6 bar, Δp = 0.5 bar). Material: galvanized steel.