A. The valve consists of the following parts: 2, valve body; 3, pipe
bracket; 5, cap nut; 6, piston spring; 7, piston spring tip; 8, supply
valve piston; 9, supply valve; 10, supply valve spring; 11, regulating
valve cap nut; 12, regulating valve; 13, regulating valve spring; 14,
diaphragm; 15, diaphragm ring; 16, diaphragm spindle; 17, regulating
spring; 18, spring box; 19 and 20, stop rings; 21, clamping screw; 22,
hand wheel.