Specifications Working Pressure Temperature Flow Coefficient Body Material Stem Tip Material End Connections •  Type •  Size Internal Volume

Up to 700 psig (48.2 bar) –20 to 900°F (–28 to 482°C) 0.005 to 0.30 316 stainless steel Hard chrome-plated 316 stainless steel Swagelok tube fitting, tube socket weld, tube butt weld, integral male VCR® face seal fitting 1/4 and 3/8 in.; 6 mm 0.07 in.3 (1.1 cm.3)—metering stem tip 0.11 in.3 (1.6 cm3)—regulating stem tip

• Micrometer handles measure stem position in 0.001 in. (0.025 mm) increments. 
• Valves open to maximum flow in six turns. 
• Slotted handle tops enable adjustments with a screwdriver. 
• Panel and bottom mounting are standard.
• Handle dead stop protects needle tip from damage by overtightening 
• Actuator threads are protected from system contaminants 
• Actuator backstop enhances bellows life
• Lock screw locks in flow settings
• Precision-formed metal bellows provides reliable service
• Metering and regulating stem tips available

• Swagelok BM series metering bellows valves with VCR end connections are processed in accordance with Swagelok Special Cleaning and Packaging (SC-11), to ensure compliance with product cleanliness requirements stated in ASTM G93 Level C.
• Swagelok BM series metering bellows valves with other end connections are processed in accordance with Swagelok Standard Cleaning and Packaging (SC-10); special cleaning and packaging are available as an option.

Factory Flow Settings

• BMG and BMW Series
• With 10 psig (0.68 bar) inlet pressure and the flow rate from 10 to 15 cm³/min, the handle is set at 0. BMG and BMW series valves are not intended for shutoff service
• BMRG and BMRW Series
• Following a helium leak test and the valve seat to a maximum leak rate of 7 × 10^–7 std cm³/s, the handle is set at 0. BMRW series valves are not recommended for shutoff above 600°F (315°C).

Options

• Welded female VCR face seal fittings 
• Special alloys
• Maintenance kits