Pneumatic bellows seal single-seat regulating valve, the valve core with the guide structure, the structure is compact, has S streamlined channel, small pressure drop loss, large flow, adjustable range and flow characteristic of high precision, IEC534 standard. Bonnet with bellows seal structure, suitable for extremely toxic, flammable and explosive volatile and the adjustment of the rare and precious metal medium. In addition the valve can also be used in place of a vacuum. Regulating valve leakage is in line with the ANSI B16.104 standards. Regulating valve with spring thin film actuator, its compact structure, big output force. Products comply with GB/T4213-92.

Valve Body:

JIS 10, 20, 30 and 40 k

PN1.6, 4.0, 6.4 MPa

Use pressure: 1.6 MPa, 2 MPa, 3.5 MPa

Connection type: flange connection: FF, RF, RJ, LG, groove type, embedded type

Flange standard JIS B2201, ANSI B16.5, GB/T9112 ~ 9124-9124, etc

Welding connection: scarf welding SW (40 ~ 50 mm)

Butt welding BW (65 ~ 200 mm)

Materials: cast steel (ZG230-450), cast stainless steel (ZG1Cr18Ni9Ti ZG1Cr18Ni12Mo2Ti ZG316L), titanium, etc

On the cover: - 45 ~ - 17 ℃, - 17 ~ + 230 ℃, + 230 ℃ ~ + 350 ℃

Note: the working temperature of no more than allow range of various kinds of materials

Gland style: bolt pressure type

Fill materials: ptfe packing, containing V type teflon asbestos packing, braided packing, graphite packing

In the valve components

Valve core type: single plunger type valve core

Flow feature: high volume flow characteristics

Metal seat: percentage (%) and linear properties (L)

Soft seat: percentage (%) and linear properties (L)

Materials: stainless steel (1 cr18ni9ti, 1 cr18ni12mo2ti, ph, 9 cr18 17-4, 316 l), titanium alloy, stainless steel welding company too and corrosion resistant alloy bellows material such as 1 00 cr18ni9 cr17ni14mo2.