Check Valves

ANSI Piston check valve Pressure Seal Cl1500-Cl2500 2-12 Class 1500, Class 2500, 2"-12"
ANSI Piston check valve Pressure Seal Cl600-Cl900 2-14 Class 600, Class 900, 2"-14"
ANSI Piston check valve Cl900-Cl2500 2-10 Class 900, Class 1500, Class 2500, 2"-10"
ANSI Piston check valve Cl150-Cl600 2-10 Class 150, Class 300, Class 600, 2"-10"
ANSI Swing check valve Pressure Seal of forged steel Cl2500 3-16 Class 2500, 3"-16"
ANSI Swing check valve Pressure Seal Cl1500-Cl2500 2-20 Class 1500, 2"-20", Class 2500, 2"-20"
ANSI Swing check valve Pressure Seal of forged steel Cl1500 3-16 Class 1500, 3"-16"
ANSI Swing check valve Pressure Seal Cl600-Cl900 2-30 Class 600, 2"-30", Class 900, 2"-24"
ANSI Swing check valve Pressure Seal of forged steel Cl900 3-16 Class 900, 3"-16"

Lift check valves and swing check valves

Company NOVAL produces check valves for pipelines of a broad range. According to the international definition, the term “check valves” is referring to the valves aimed at the prevention of inverse medium flows in the pipeline.

A lift check valve has a cone as its operating member, which automatically prevents the inverse flow. Compared to that, a swing check valve has a valve plate as its operating member.

Lift check valves are applicable in normal operation as well as in emergency situations.

Swing check valves and lift check valves are direct-acting mechanisms, which have certain construction differences and can be mounted on different (vertical and horizontal) areas of the pipeline. The right medium flow direction must be considered.

The production technology of check valves involves the usage of such materials as high-class steels (cast or forged), as well as cast iron. To ensure the tight connection, flanges or butt-weld ends from the same material as the pipe or a comparable one are foreseen.

We offer

Company NOVAL works according to the American, European, and Russian standards. Most products of our firm are standardized, so you can get the following information directly out of our catalogue:

  • Technical data sheets of the off-the-shelf products;
  • The most important technical specifications of the products;
  • Brands and quality of the used materials;
  • Connection types to the production system;
  • Characteristics of the flanges (surface type, nominal diameter, nominal pressure).

Beside the standard models, we are also happy to provide the products according to the customer´s individual needs (e.g., with spring, with soft sealing, etc.).

You can buy valves, including lift check valves and swing check valves for pipelines from NOVAL, if you send us your inquiries per e-mail or contact our specialists directly by phone.