MilleraerodynamicBellows seal single-seat control valvesummary:

MillerThe pneumatic bellows sealed single seat regulating valve core adopts an upward guiding structure, with a compact valve structure and aSThe streamlined channel results in low pressure drop loss, high flow rate, wide adjustable range, and high precision of flow characteristics. conform toIEC534-1-1976Standard. The upper valve cover adopts a corrugated pipe sealing structure, which is suitable for regulating extremely toxic, flammable, explosive, volatile, and rare precious metal media. This valve can also be used in vacuum situations. The regulating valve is equipped with a multi spring thin film actuator, which has a compact structure and high output force.
Technical parameters and performance indicators

valve body

type type Straight through single seat cast spherical valve
Nominal Diameter 40、50、65、80、100、150、200mm
nominal pressureANSIone hundred and twenty-five150、、300 JIS1016、、20K PN1.6、
4.0MPa Connection typeFlange connection:RF、
RJ Flange standard:ANSI B16.5-1981
classWelding connection: embedded weldingSW40（～50mm ）butt weldingBW65（～200mm
） material materialCast steel（ZG230-450
）Cast stainless steel（ZG1Cr18Ni9Ti、ZG1Cr18Ni12Mo2Ti、ZG316L
）Titanium, etc upper valve coverRoom temperature type（P-17）：～230+ ℃extendⅠType（EⅠ-45）：-17～ +230℃～566+
℃extendⅡType（EⅡ-100）：-45～
℃
Note: The working temperature shall not exceed the allowable range of various materials Cover type
Bolt compression type fillmaterialV

Type PTFE packing, PTFE impregnated asbestos packing, asbestos braided packing, graphite packing

Valve components SPOOL TYPE
Single seat plunger type valve core material materialStainless steel（1Cr18Ni9Ti、1Cr18Ni12Mo2Ti、17-4PH、9Cr18、316L
）
Stainless steel overlay welding with Si Tai Lai alloy, titanium, and corrosion-resistant alloys, etcCorrugated pipe material

1Cr18Ni9Ti

actuator typetypeHA
Multi spring thin film actuator Membrane material
Dingjing rubber clip nylon cloth 20Spring range100～40、120～80、～
240kPa 140air supply pressure～
400kPaair connection
Rc 1 4 -30ambient temperature～70+

℃ Valve action typegas—Guan or Qi—

open attach piece

Positioner, air filter pressure reducer, holding valve, travel switch, valve position transmitter, handwheel mechanism, etc sexually

ability discharge leak measureMetal valve seat: less than the rated capacity of the valve0.5%, in accordance withANSI B16.104-1976Ⅱ
level soft valve10^-7Seat: Less than the rated capacity of the valve, in accordance withANSI B16.104-1976Ⅵ
level circle differ fromEquipped with locator: Less than full stroke
1%Without locator: Less than full travel
3% Basic errorEquipped with locator: Less than full stroke
±3%Without locator: Less than full travel
±11%Note: Using standardV

When using PTFE packing material 50Adjustable range1