This kind of product is assembled by the assembly of the fluorine-plated single-seat regulating valve and the actuator. The regulating valve component adopts the top guiding structure, and the single-seat regulating valve is suitable for occasions with low pressure difference and strict leakage requirements; such products are widely used in metallurgy, electric power, petrochemical and other industrial sectors for fluid corrosive fluid and pressure flow control. .
The main technical parameters
Valve body
Type: straight through single seat casting ball valve
Nominal diameter: DN20～300
Nominal pressure: PN1.6, 4.0, 6.4MPa
Connection type: flange connection PN16 convex surface PN40, 64 convex and concave surface
Main body and bonnet material: WCB (SCPH2), ZG1Cr18Ni9Ti
CF8 (304), CF8M (316) lined with F46
Inner material: CF8 (304), CF8M (316) outer lining F46
Applicable temperature: normal temperature type -40～230°C
Medium temperature type 230～4250°C
Low temperature type -250～-40°C
Gland type: bolt compression
Filling: V-type PTFE, impregnated PTFE asbestos
Asbestos braided packing
In-valve assembly
Spool type: single seat plunger type valve plug (P)
Flow characteristics: equal percentage (%) linear (L)
Sealed version: soft seal
Leakage:
JB/T7387 Class V (soft seat)
Adjustable ratio: 50:1
Executive agency
Type: LA(B) multi-spring film actuator
Spring range: 20～100KPa, 40～200KPa
80～240KPa
Supply pressure: 0.14, 0.24MPa, 0.28MPa
Air source interface: M10×1
Ambient temperature: -40 to +70 °C
Accessories: Electrical valve positioner, electrical converter
Ambient temperature: -40 to +70 °C
Accessories: Electrical valve positioner, electrical converter
CV value and itinerary
| DN | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CV | Linear | 1.8 | 2.8 | 4.4 | 6.9 | 11 | 17.6 | 27.5 | 44 | 69 | 110 | 176 | 275 | 440 | 690 | 1000 | 1600 | ||
| % | 1.6 | 2.5 | 4.0 | 6.3 | 10 | 16 | 25 | 40 | 63 | 100 | 160 | 250 | 400 | 630 | 980 | 1550 | |||
| Rated stroke(mm) | 16 | 25 | 40 | 60 | 100 | ||||||||||||||
Allowable differential pressure gauge(MPa)
| DN | 20 | 25 | 32 | 40 | 50 | 65 | 80 | 100 | 125 | 150 | 200 | 250 | 300 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Single seat type | 1.73 | 1.5 | 1.0 | 0.8 | 0.6 | 2.0 | 1.1 | 0.7 | 2.3 | 1.2 | 0.6 | 1.1 | 0.5 |
