二阀组是与压力变送器或压力表配套使用。其作用是将差压变送器正、负压室与引压点导通或切断，或将正、负压室切断或导通。一般用于现场控制仪表上，为仪表提供多通路，减少安装工作量，提高系统可靠性。
The ‘G12FF’ Type 2 valve manifold is designed for remote mounting to static pressure transmitters. The separate vent valve gives full control of venting of the instrument, plus the ability to calibrate in-situ. Each needle valve head is designed for safe and reliable isolation,giving bubble tight shut off, with non-rotating & anti-galling tip and dynamic self-adjusting spindle seal to give long service life in a variety of service conditions.
Product Data Sheet
Part No. | Connections Size | A | B | C | Weight (Kgs) |
G12FF | ½" F x F | 2.5 | 1.1 | 7.1 | 0.9 |
Key Features of the Hank Needle Valve range
·Non rotating tip - self centering & anti-galling
·Piston ring - gives dynamic adjustment of gland seal in response to pressure change
·Anti-blow out spindle - a major safety feature
·Secure seal - precision machined to give leak free operation for the life of the valve. Available in either PTFE or Grafoil
Standard Specification
Pressure: 6000psi | Packing: PTFE | Handle: T-Bar | Bore: 0.21” (5.4mm) |
Temp: 240 deg C | Thread form: NPT | Seat: Metal to metal | CV: 0.46 |
1/2” Inlet / Outlet Connections | 1/4” NPT Vent Connection | ||
