Gate valve BGV

pneumaticisolationstainless steel

Stainless Steel Gate Valve with LOTO Safety Feature BGV LOTO pneumatic gate valves include all the benefits of the standard BGV range, with LOTO safety feature and low power.  BGV LOTO gate valves are bellows sealed stainless steel gate valves for use in applications which require high leak tightness and a minimum of hydrocarbons in the vacuum system. Although principally designed for the isolation of pumps in the semiconductor fab basement, BGV valves are also ideal for other applications where a 1 bar differential at opening is desirable. The unique Lock‑Out‑Tag‑Out (LOTO) safety mechanism allows personnel to freely work on the vacuum system without fear of the valve inadvertently opening. The valve is physically held closed using a pin to lock the valve shut preventing it from being opened. If there is a requirement for the valve to be locked shut, a lockout hasp can be inserted through the LOTO pin and padlocked.       They are designed for use in the pressure range of 1.2 bar absolute to 1 x 10‑9 mbar (1.2 x 105 to 1x10‑7 Pa). BGV valves will withstand 1.2 bar absolute in either direction allowing the vacuum line above the pump to be vented with the valve closed. The low power actuation requirement at just 1 W enables direct connection to Edwards latest generation dry pumps range without any additional external power supply and facilitates ‘plug and play’ simple installation. Reed switches can be used by your control equipment to determine if the valve is open or closed, these also contain LEDs to provide a visual display of the valve position. Each valve is fitted with a 24V d.c.