Swing Check Valve

A valve designed to prevent the backflow of fluids and to allow pigging operations


  • Compact design
  • Tight sealing
  • Piggable
Swing Check Valve

ATV manufactures a full range of Swing Check valves for production, processing and transmission applications, suitable for pressure ratings up to Class 15000 psi and ANSI Class 2500.   

Swing check valves are typically full bore with optimized design of body cavity and disk for piggability, including the capability to handle intelligent pigs. Reduced bore check valves can be supplied on request for specific applications in pumping stations.  

ATV Swing Check valves can be supplied with dampening system to increase the closing time and avoid shocks and with clapper lifting device operated manually or by remote controlled actuators. Lost motion devices can be supplied to reduce the wear on the shafted seals. Sensors for remote indication of clapper position are also available.

Materials are sourced from qualified suppliers on the base of specifications that reflect the industry standards (API, ASTM, NORSOK, BS, DIN or others), but do also incorporate additional requisitions resulting from long experience.  
ATV designs, manufactures and tests its products in accordance with all the relevant Industry standards and codes (ANSI, API, ASME, BS, ISO, NACE, PED and others). 

ATV stresses its willingness to produce engineered valves; therefore, it welcomes requests for special size, class and design requirements. 


Swing Check Valve - Specifications


APPLICATIONS Non-Return, Isolation Valve Not-Return, Pipelines, rigs, platforms, skids, production plants
APPLICABLE STANDARDS API 6A, ISO 10423, ASME VIII, ASME B16.34, ASME B16.10, ASME B16.5, NACE MR0175 and other diffused Industry standards API 6D, ISO 14313, ASME VIII, ASME B16.34, ASME B16.10, ASME B16.5, NACE MR0175 and other diffused Industry standards
RANGES 2 1/16” ÷ 11” Class 3000 psi and 5000 psi, 1 13/16” ÷ 7 1/16” Class 10000 psi, 1 13/16” ÷ 4 1/16” Class 15000 psi, 1 13/16” ÷ 3 1/16” Class 20000 psi. Any other size upon application. 2” ÷ 60” Class ANSI 600, 2” ÷ 48” Class ANSI 900, 2” ÷ 36” Class ANSI 1500, 2” ÷ 20” Class ANSI 2500. Larger sizes available on request.


Forged body
Cast body
Bolted bonnet
Full bore
Welded-in or removable seat
Metal seated
Soft seated
Wear resisting hardfacing on sealing surfaces
Local position indicator
In-line maintenance


Flanges (to API 6A / ISO 10423)
Flanges (to ASME B16.5 up to 24” and B16.47A for 26” and larger)
Compact flanges (to Norsok L005)
Buttwelded ends (to ANSI 16.25)
Hub ends for clamped connections (as per customer requirement)


Carbon steel with partial or full CRA overlay on the wetted areas
Low alloy carbon steel with partial or full CRA overlay on the wetted areas
Stainless steel
Duplex or Superduplex stainless steel
Nickel Alloy


Manual gear for pigging operations
Actuator for pigging operations


Reduced bore
CRA Overlay, full or partial
Conduit clapper
Clapper position switches and transmitter
Hydraulic dampener
Lock open lever / clapper position indicator

Advanced Technology Valve S.p.A.

Headquarters and manufacturing plant:
Via Ombriano 2
I-23823 Colico (LC), Italy
Tel. +39 0341 932111
Fax +39 0341 930785
E-mail: info@atvspa.com

Our Mission

We provide flow control solutions (valve and actuators) with the highest standards of reliability and performance to the most critical applications of the Oil & Gas upstream and downstream industry, Oil & Gas transmission, Power industry.