Series BAT-1: Trunnion Ball Valves - Features



Series BAT-1
Trunnion Ball Valves
ASME Class from 150 to 1500 Size from 2" to 32"

Euroguarco BAT series valves are trunnion-mounted, polymeric-seated ball valves, which provide excellent tightness over an extensive range of temperatures and pressures. They are available in both full bore and reduced bore designs in choices of materials, sizes and pressure classes which allow an ideal selection for a variety of applications.
This extensive range of sizes, styles, pressure classes and materials together with conformance to ANSI, API and NACE specifications qualify these valves for virtually all oil and gas services. The combination of trunnion-mounted balls and unique spring-loaded upstream sealing provides bubble-tight shut-off and low operating torques, even at extremely high shut-off pressures. BAT series valves conform to the requirements of ANSI B16.34 and API 6D.
They are manufactured under a quality plan that complies with the requirements of API Q1 and ISO 9001. The factory is licensed by API to use the API 6D monogram.

Euroguarco BAT Series ball valves of trunnion-type are designed to withstand high pressures and both high or low temperatures (cryogenic applications). Other specialties of these valves are also suitable for submarine applications. Special ball valves can be also manufactured according to Customer’s specifications or requirements.

►  Seats
The valves can be equipped with soft seats as well as with metal to metal seats.

►  Low Operating Torque
Accurate machining of stem, of stem packing housing and of sealing surface of the BAT valves, together with the best quality of any used sealing material, ensure compliance with the most severe pollution control regulations.

►  Tight shut-off
The unique spring-loaded floating seats of the BAT valves provide upstream sealing regardless of flow or pressure direction. These seats provide bubble-tight sealing at both high and low pressures. Leakage testing is performed according to the requirements of API 6D and API 598.

►  Fire Testing
All the BAT valves have been fire-tested in accordance with API 607 , API 6FA and BS6755 part II standards, as shown in figs. 1a and 1b.

   
fig.1a fig.1b


►  Secondary or Emergency Sealing
All BAT valves have a secondary sealant injection system for stem seals (fig. 2) is a standard design for the valves 6” and larger. The valves do not require any lubrication under ordinary circumstances, as the system is provided with sealing in the event of damage.


fig.2


►  Anti blow-out stem and antistatic device
As a standard design of BAT ball valves, anti blow-out stem and antistatic device were made by separating the stem from the ball. The lover end of the stem is designed with an integral collar to be blow-out-proof. As shown in fig.3, a spring-loaded pin assures the electrical continuity between ball, stem and body, so as to avoid sparks when the stem opens and closes the valve, which could be dangerous in case of hazardous area installation.


fig.3


►  Double Block and Bleed
Spring loaded upstream and downstream seats and body drains allow the valves to be used in double block and bleed service without modification.

►  Testing
Hydrostatic shell test are performed at 1.5 times the maximum rated working pressure. High pressure closure test at 1.1 times the maximum rated working pressure. Low pressure closure test at 80 psi(5.6 bar).

►  Corrosion Resistance
Carbon steel stems, balls and seats are nickel plated by electrolyses as our standard production. A wide range of alloys are available for corrosive services.

►  NACE Compliance
The BAT valves are supplied by the materials that meet the requirements of NACE MR-01-75. Strict material control and inspection during the manufacturing processes are insured in compliance with all the standard, both for manual and automatic operations.

►  Buried Service
When valves are to be installed below ground level, extensions for the stem and actuator mounting pad are available. Extensions for sealant injection fittings and drain and vent fittings are also provided. Customers must specify the required extension length. Euroguarco BAT ball valves can incorporate one or more antistatic devices to ensure electrical conductance continuity between all metallic parts. Other optional features include transition rings or pipe pups (BW ends only), manual gearbox, electric, pneumatic, hydraulic, gas over oil or other means of actuation, locking and interlocking devices and other special accessories on request.