Does the ES4 jam ring with gasket, carbon steel, zinc-nickel, require periodic replacement of the Viton O-ring to maintain leak-tight DIN 2353 connections?

Yes. The ES4 jam ring with gasket, carbon steel, zinc-nickel uses a molded Viton Oâring as an additional gasket for DIN 2353 connections. To maintain leak-tight performance.especially to prevent leaks from metallic seal loosening or creep.the Viton Oâring should be inspected periodically and replaced if signs of aging, hardening, swelling, cuts or permanent deformation appear. Replacement intervals depend on service conditions (temperature, fluid compatibility, pressure cycles, exposure to aggressive media), but routine inspection during scheduled maintenance is recommended to ensure continued sealing integrity.

How does the ES4 jam ring with gasket, carbon steel, zinc-nickel, perform under high-temperature conditions affecting the Viton O-ring?

The ES4 jam ring with gasket, carbon steel, zinc-nickel uses a Viton O-ring as the secondary seal for DIN 2353 connections. Under high-temperature conditions, Viton retains good chemical and thermal stability (typical continuous-use range up to ~200â230Â°C), so the O-ring will maintain sealing performance and resist creep-related leaks better than elastomers with lower heat resistance. However, prolonged exposure near or above Vitonâs upper limits can accelerate hardening, loss of elasticity and eventual seal failure, reducing effectiveness of the anti-creep solution. The zinc-nickel coating and carbon steel body provide robust corrosion and mechanical resistance, but for sustained high-temperature service verify the specific Viton grade and temperature profile; select high-temp Viton variants or alternative elastomers if exposure exceeds ~200â230Â°C.

Can the ES4 jam ring with gasket, carbon steel, zinc-nickel, be reused after disassembly without replacing the Viton O-ring?

No. do not reuse the ES4 jam ring with gasket, carbon steel, zinc-nickel after disassembly without replacing the Viton O-ring. Why: The ES4 jam ring uses a shaped metallic gasket on the cone plus an additional Viton O-ring to ensure leak-free DIN 2353 connections and to prevent leaks from metallic seal relaxation or creep. During assembly the Viton O-ring is compressed and conforms to sealing surfaces; during disassembly it can be deformed, cut, nicked or suffer fatigue. Reusing the original O-ring risks imperfect compression, permanent set, or unseen damage that compromises the secondary seal and can lead to leaks. Best practice: Always replace the Viton O-ring whenever the ES4 jam ring is removed. Also inspect the metal gasket and mating surfaces for damage; replace the jam ring if the shaped metallic gasket or cone seating shows signs of distortion, galling or corrosion. Replacement ensures reliable sealing performance and maintains the corrosion-resistant zincânickel coatingâs intended service life.

ES4 jam ring with gasket, carbon steel, zinc-nickel

Additional information

Sealing ring with a shaped gasket in the recess on the cone of the ring and an additional O-ring gasket for DIN 2353 connections. This solution prevents leaks caused by loosening of the metallic seal, e.g., in the creep process. Available as: L (light series) and S (heavy series). Surface coated with zinc-nickel with a layer thickness of 6-10 µm, which is characterized by very high corrosion resistance (up to 720 hours without corrosion in a salt spray chamber). Material: carbon steel, zinc-nickel (seal made of Viton).

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HD-ES4-06-CN	6 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry
HD-ES4-08-CN	8 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry
HD-ES4-10-CN	10 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry
HD-ES4-12-CN	12 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry
HD-ES4-14-CN	14 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry
HD-ES4-15-CN	15 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry
HD-ES4-16-CN	16 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry
HD-ES4-18-CN	18 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry
HD-ES4-20-CN	20 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry
HD-ES4-22-CN	22 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry
HD-ES4-25-CN	25 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry
HD-ES4-28-CN	28 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry
HD-ES4-38-CN	38 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry
HD-ES4-42-CN	42 mm locking ring with Viton seal, Zn-Ni	-	-	In stock	Enquiry

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Sealing ring with a shaped gasket in the recess on the cone of the ring and an additional O-ring gasket for DIN 2353 connections. This solution prevents leaks caused by loosening of the metallic seal, e.g., in the creep process. Available as: L (light series) and S (heavy series). Surface coated with zinc-nickel with a layer thickness of 6-10 µm, which is characterized by very high corrosion resistance (up to 720 hours without corrosion in a salt spray chamber). Material: carbon steel, zinc-nickel (seal made of Viton).