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Wafer Type Segment Ball Valve

Basic Information
Place of Origin: China
Brand Name: Coosai
Certification: ISO
Model Number: 1''-20''
Minimum Order Quantity: 1pc
Price: Price negotiable
Packaging Details: plywood case
Delivery Time: 35-50 days
Payment Terms: L/C, T/T
Supply Ability: 100pcs per day
Detail Information
Material: Stainless Steel,Carbon Steel Actuator: Single/double Acting Acting Pneumatic Actuator,Electric Actuator
Port Type: V Port Connection: Wafer,flange
Size: 1''-10''(DN25-DN250)
High Light:

Wafer Type Segment Ball Valve


10" Segment Ball Valve

Product Description

Flange/Wafer type segment ball valve ,V-Notch ball valve , pneumatic actuator segment ball valve



Coosai wafer type segment Ball valve combines the advantage of globe control valve with the eccficiency of a rotary ball valve which satsfify the needs for throttle and shut off of flow within automatic process industry.The segment ball in V-notch design has strong cutting force and self-cleaning function.With the segment ball quarter turning the passage area changesin ectorial shape.Leading to the precise control of the flowm,it is the ideal valve for most paper and pulp process application,Low CV value precise control is available by special V-notch on DN25 Segment ball.



Pulp & Paper/ Petrochemical /

Printing & Dying /Pharmacy/ Beverage & Food



Wafer connection: MFR STD

Connection standard: ASME B16.5 / EN 1092-1

Test & Inspect Standard:DIN3230,ISO5208,ANSI /FCI 70-2,

Pressure & temperature rating Standard: ASME B16.34


Technical Data

Seat Material:


Metal: Tungsten Carbide/Satellite/Ni60


Actuator :

Worm Gear/Pneumatic/Electric




DN 25~250mm NPS 1”-10” (wafer type)


Pressure Rating:

PN 10/16

ANSI 150/300


Design Feature



· Specially designed V-notch ball provides strong cutting stress and tight sealing.

· Hard chromium, nitriding, and HCOF treatments are all available for the ball surface treatment, improving hardness, abrasion resistance, fatigue resistance, corrosion resistance and performance under high temperature.

· Well ground notched ball surface ensures small operating torque and tight seal, especially for metal seated segment valve.



· Integral body design ensures smooth flow, easy assembly and smaller shell leakage possibility.

· Both wafer and flange connection are available.




· The stem is finely ground to match the actuator excellently, which prevents rocking motion and potential failure of the segmented valve.

· Close-fit spline or pin-key are available for stem-core connection to provide reliable transmission without motion lost or dead band.




· Metal, RTFE or Devlon are available for seat options.

· For valve rated under class 150, retainer is casted on valve body to eliminate any possible space between seat ring and body for residue accumulation. Consequently, this ensures perfect seal.




1. Precise contouring of the V-notch provides excellent control characteristics for an extensive variety of flow applications.

2. Easy to change seats,means low cost for valve repairs.

3. Heavy duty construction with unrestricted sreaight through flow path gives high Capacity.

4. Superior trunnion bearing technology is engineered for excellent abrasion resistance.

5. Rugged self-adjusting metal seated option is ideally suited for high temperature applications or slurries.

6. Excellent sealing capacity-Class V Standard

7. Splined connection between the shaft and ball ensures precise control and low hysteresis.

8. Shearing action between ball and seal promotes smooth ,non-clogging operation-perfect for fiber or slurry applications.

9. Spring loaded seat maintains constant contact with the ball,giving enhanced sealing performance.




The Flow Characteristic of Segment Ball valve


Wafer Type Segment Ball Valve 0


The Torque of Segment Ball valve





Normal Pressure PN16, The Torque under Max.pressure 1.0Mpa(Metal seat) Normal Pressure PN16, The Torque under Max.pressure 1.0Mpa(soft seat) Normal Pressure PN25, The Torque under Max.pressure 2.0Mpa(soft &metal seat) Normal Pressure PN40, The Torque under Max.pressure 3.0Mpa(soft &metal seat) Normal Pressure PN63, The Torque under Max.pressure 5.0Mpa(soft &metal seat)
DN25 20 20 30 70 150
DN32 25 25 36 90 230
DN40 30 30 40 140 270
DN50 35 35 42 150 520
DN65 50 50 62 300 640
DN80 60 80 95 300 640
DN100 80 120 140 420 900
DN125 110 180 220 600 1600
DN150 170 300 360 950 1600
DN200 240 500 590 1500 2700
DN250 430 900 1100 2300 4700
DN300 600 1400 1500 3500 7000
DN350 1200 2000 2500 6200 9300
DN400 1800 3200 4000 7200 13000
DN450 3000 4500 5600 11000 17300
DN500 4600 6500 8200 12500 22000


The part list of Segment ball vavle

Wafer Type Segment Ball Valve 1


No. Part Name Qty Material
1 Body 1 WCB CF8 CF8M
2 Ball 1 CF8+Cr CF8+Cr CF8M+Cr
3 Pin 2 SS304 SS304 SS316
4 Seat 1 SS304+STL SS304+STL SS316+STL
5 Spring 1 SS316 SS316 SS316
6 O ring 1 Fluororubber Fluororubber Fluororubber
7 href="#/javascript:;" self lubricating bearing 1 SS304+PTFE SS304+PTFE SS316+PTFE
8 Down stem 1 20Cr13 SS304 SS316
9 O ring 1 Fluororubber Fluororubber Fluororubber
10 Cover 1 WCB CF8 CF8M
11 Gasket 1 PTFE PTFE PTFE
12 Adjust gasket 1 PTFE PTFE PTFE
13 Flat Gasket 4 Q235 SS304 SS316
14 Bolt 4 25 SS304 SS316
15 Stud 2 25 SS304 SS316
16 self lubricating bearing 1 SS304+PTFE SS304+PTFE SS316+PTFE
17 Pin 1 20Cr13 SS304 SS316
18 Packing 1 PTFE PTFE PTFE
19 Sealing packing 1 set PTFE PTFE PTFE
20 Packing 1 PTFE PTFE PTFE
21 Gland 1 WCB CF8 CF8M
22 Nut 2 35 SS304 SS316
23 Up stem 1 20Cr13 SS304 SS316




Contact Details

Phone Number : +8613017861943