Herpor valve engineering Español
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Herpor Engineering is specialized in the development of valves throughout the cycle:

  • Creation of a product according to a specification or requirements
  • Design parts by structural analysis in compliance standards
  • Drawings and documentation
  • Actuation selection
  • Testing process
  • Implementation of the manufacturing process
  • Suppliers (procurement)
 Fixed cone valve DN-500 PN-10. Discharge valve in a Damm.
Fixed cone valve DN-500 PN-10. Discharge valve in a Damm.
Fixed cone valve DN-500 PN-10. Discharge valve in a Damm. Butterfly valve DN-2600 PN-10, machine welded. Butterfly valve DN-200 PN-16, hydraulic actuation, irrigation service. Ball valve DN-300 PN-78. Main Inlet Valve (MIV) for turbine protection. Angle needle valve DN-65 PN-25. Bypass valve. Axial check valve DN-400 PN-16. Anullar valve DN-1000 PN-10.

Own Valve Technology

Further developing valves according to the international standards and specifications of the client, Herpor Engineering has its own technolgy in valves for reservoirs, hydropower centrals and pumping stations, which have been working successfully for more than 20 years:

Herpor provide this technology to the valve manufacturers, but under request we could also manufacture the valve at external workshops.

Butterfly valves

  • Design: centered axis, Bi-eccentric
  • Seat: Elastomer (EPDM, Nitrile, Viton), PE-HD, Teflon
  • End connection: Flange, Wafer, Lug
  • Standards: ANSI, DIN, AWWA, JIS
  • Pressure: 150 to 600 lb. PN-10 to PN-100
  • Cast Steel or Machine welded construction

Annular valves (Larner Johnson)

  • Size: DN-200 to DN-1200
  • Pressure range: PN-10 to PN-40
  • Cast Steel or Machine welded construction

Annular gate valves

Bypass for turbines for opening against 100% differential pressure.
  • Size: DN-200 to DN-300
  • Pressure: PN-10 PN-40
  • Material: Cast steel GGG40

Non-return annular valves

  • Size: DN-100 to DN-1000
  • Pressure: PN-10 to PN-64

Non-return Flap valves

  • Size: DN-100 to DN-1200
  • Pressure: PN-10 to PN-16

Non-return Flap valves with damper

  • Size: DN-100 to DN-1200
  • Pressure: PN-10, PN-16, PN-25

Main inlet valves (MIV) for turbines

  • Butterfly valves DN-350 to DN-3000 PN-6 to PN-40
  • Spherical Valves DN-300 to DN-2400 PN-6 to PN-64

Over-speed Protection Butterfly valves

  • Size: DN-400 to DN-3000
  • Pressure: PN-10, PN-16, PN-25, PN-40
  • Cast Steel or Machine welded construction

Needle valves

  • Size: DN-50 to DN-300
  • Pressure: PN-10 to PN-100
  • Actuation: Oleo-hydraulic, Pneumatic, electric, manual

Fixed Cone Valves

  • Size: DN-300 to DN-3000
  • Pressure: PN-6 to PN-25

Spring Axial-Check valves (air intake)

  • Size: DN-100 to DN-800
  • Pressure: PN-10 to PN-16
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