Rising Stem Ball Valve

A low maintenance valve, particularly appropriate for gas processing with high temperature and cycling service.


  • Low maintenance valve due to the non-contact between ball and seat during the stroking action
  • Tight sealing in both direction
  • Extended Temperature range (from -46°C to 450°C)
Rising Stem Ball Valve

ATV offers a full range of Rising Stem Ball Valves mainly suitable for gas processing, such as for high temperature and cycling service, on molecular sieves and dehydrating units in gas treatment, isomerization units and other processing plants.

Rising Stem Ball Valves are the most suitable for these severe service applications requiring the highest reliability because the sealing surfaces do not contact during stroking with the benefit of long life without maintenance. Peculiarity of ATV Rising Stem Ball Valve is that when the ball is in close position, the tight sealing between the ball and the single fixed seat is granted in both directions. Rising Stem Ball Valves can be operated with manual gear or with electric, pneumatic or hydraulic actuators. 

Materials are sourced from qualified suppliers on the base of specifications that reflect the industry standards (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, ASME, BS, ISO, NACE, PED and others).  ATV rising stem ball valves are pressure tested to the most stringent requirements.

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


Rising Stem Ball Valve - Specifications


APPLICATIONS Gas processing, isomerization units and other processing plants
APPLICABLE STANDARDS ISO 14313, ASME VIII Division 1 and 2, ASME B16.34, ASME B16.10, ASME B16.5, NACE MR0175
RANGES 2” ÷ 24” Class ANSI 600, 2” ÷ 20” Class ANSI 900, 2” ÷ 12” Class ANSI 1500 and 2500. Larger sizes available on request.


Cast Body Construction
Top Entry with Bolted Bonnet
Full Bore or Reduced Bore
Metal Seated
Wear Resisting Hardfacing on Sealing Surfaces
Bi-Directional Tight Sealing
Fire-Safe Design


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


Carbon Steel
Low alloy carbon steel
Stainless Steel
Duplex or Superduplex stainless steel
Nickel Alloy


Handwheel or manual gear
Electric Multi-Turn
Pneumatic Actuator
Hydraulic Actuator


Forged body construction
High-Temperature Service
Hydraulic snubber for pneumatic actuator
Injectable packing for in-line maintenance service
Handwheel Extension

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.