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With threaded connection

Corrugated metal hoses with threaded connection

Threaded fittings provide corrugated metal hoses with sealed detachable connections. VZM supplies corrugated metal hoses with swivel nuts and spherical nippels, swivel nuts and nippels with inner cones and other types of seals. There are various modifications of corrugated metal hoses available – with swivel nut, mail threaded connections, adapters and couplings, as per customer’s requirements.

Technical characteristics of corrugated metal hoses with threaded connections

ДиаметрNominal diameter (DN) 6 – 80 mm
Давление рабочееWorking pressure (PN) From vacuum to 440 bar
Давление пробноеTest pressure (PT) 1,25 × PN, 1,5 × PN or according to customer’s requirements
ТемператураMedia temperature From -196°С to +600°С
ТемператураVibration resistance Up to 2 000 Hz
ТемператураNumber of braids From 0 to 3
ТемператураDimensions of welded end According to GOST, DIN or customer’s requirements

Types of threaded connections

Types of seals and threads

VZM makes metric threads (М), UTS , cylindrical and cone shaped witworth threads, UNF, NPTF, DK (DKOL, DKOS), JIC, JIS, BSPP, BSPT types G, R, Rp threads on end fittings and controls their quality in accordance with Russian and international GOST, DIN, EN, ISO standards. Upon customer’s request end fittings of corrugated metal hoses can have gas pipe threads and other industry specific and special threads.

To seal joints various nippels and connectors are used – flat (face), cone to cone with angles of 24°, 37°, 60°, 74°, sphere-cone with sealing gaskets and rings.
If you have not found desired product do not hesitate to contact us. We produce corrugated metal hoses with threaded connection required by the customer.

Selecting a corrugated metal hose by characteristics of bellow

Made of stainless steel bellow is pressure bearing part of corrugated metal hose. It provides base characteristics of high-pressure corrugated metal hose – tightness, resistance and reliability. VZM offers as standard bellows that meet the majority of requirements as special modifications.

Send us all known parameters (working pressure, bend radiuses, temperature and others) to select a corrugated metal hose with optimal bellow for your operation conditions. Characteristics of some types of bellows are also shown on our website (go to the Tables below).

Benefits for our customers

  • Our corrugated metal hoses are certified against PED requirements and delivered with CE mark
  • Our quality control system is in full compliance with the requirements of ISO 9001:2008
  • We handle all customs procedures ourselves and we deliver ready-to-use products with all certificates to customer’s door;
  • We have our own warehouse on EU territory and can maintain stock for our customers;
  • We accept different payment schemes;
  • Our full cycle production provides the highest quality and reliability due to 100% quality control on every stage of production;
  • Assigned lifetime of our corrugated metal hoses can reach 35 years
  • We accept orders for production from one to 5000 units
  • We manifacture products in accordance with GOST and DIN standards and customer’s specification

Price of corrugated metal hoses

Price of corrugated metal hose depends on its DN, PN, types of end fittings and other parameters. Send us enquiry to learn price and lead time.

Certificates and approvals:

  • Pressure Equipment Directive PED 97/23/EC certificate
  • ISO9001:2008 certificate (issued by TÜV Rheinland).
  • Certificate and declaration of conformity to the regulations of the Customs Union
  • Rostekhnadzor permit to use on hazardous production facilities.
  • GOST R certificate
  • Other certificates and licenses are provided upon request.