316 Stainless Steel Pneumatic Diaphragm Control Valve 1/4" & 3/8" Ports with 10 Bar Pressure Rating and Ultrahigh Purity Sealing
Price:
89.25USD
MOQ:
1
Delivery Time:
30Day
Brand:
AFK
Product Description
Product Overview
The AFK 316 Stainless Steel Pneumatic Diaphragm Control Valve is engineered for ultrahigh purity applications requiring reliable low pressure sealing. Available in multiple configurations with specialized cleaning processes for oxygen and ultra-high purity environments.
Available Cleaning Specifications
Standard (wk-ba): All welded joints cleaned according to company specifications. No suffix required when ordering.
Cleaning for Oxygen (wk-O2): Meets ASTM G93 Class C cleanliness requirements. Add -O2 suffix to order number.
Ultra High Purity (wk-ep): Controlled surface finish with electropolishing RA 0.13 μm. Deionized water ultrasonic cleaning. Add -EP suffix to order number.
Component Materials
| Item | Part Description | Material |
|---|---|---|
| 1 | Handle | Aluminium |
| 2 | Actuator | Aluminium |
| 3 | Valve Stem | 304 SS |
| 4 | Bonnet | S17400 |
| 5 | Bonnet Nut | 316 SS |
| 6 | Button | 316 SS |
| 7 | Diaphragm | Nickel cobalt alloy |
| 8 | Valve Seat | PCTFE or PFA |
| 9 | Valve Body | 316L SS Or 316L VAR 316L VIM-VAR |
Order Configuration Options
| Basic Order Number | Port Type and Size | A in(mm) | B in(mm) | C in(mm) | D in(mm) |
|---|---|---|---|---|---|
| WV4-6L-TW4- | 1/4" Tube Pipe butt welding joint | 0.44 (11.2) | 0.30 (7.6) | 1.06 (26.9) | 1.74 (44.2) |
| WV4-6L-TW6- | 3/8" Tube Pipe butt welding joint | 0.44 (11.2) | 0.26 (6.6) | 1.06 (26.9) | 1.74 (44.2) |
| WV4-6L-FR4- | 1/4" Thread MCR joint | 0.44 (11.2) | 0.86 (21.8) | 1.06 (26.9) | 2.78 (70.6) |
| WV4-6L-MR4- | 1/4" Male MCR joint | 0.44 (11.2) | 0.62 (15.7) | 1.06 (26.9) | 2.24 (57.0) |
Technical Specifications
Port Size: 1/4", 3/8"
Flow Coefficient (CV): 0.27
Inner Diameter: 0.16 in. (4.1 mm)
Maximum Working Pressure: 10 bar (150 psig)
Working Pressure of Pneumatic Actuator: 4.2~6.2 bar (60~90 psig)
Working Temperature: PCTFE: -23~65℃ (-10~150℉), PFA: -23~150℃ (-10~302℉)
Leakage Rate (Helium): inside ≤1×10 mbar l/s, external ≤1×10 mbar l/s
Key Features
- Metal-to-metal sealing provides leak-free service from vacuum to high pressure
- Small internal volume with complete flow channel purging capability
- Fully wrapped valve seat design with superior anti-expansion and anti-pollution ability
- Nickel cobalt alloy diaphragm for higher durability and corrosion resistance
- Standard roughness Ra0.25 μm (BA grade) or electropolishing Ra0.13 μm (EP grade) options
- Helium test leakage rate <1 × 10⁻⁹ std cm³/s
- Pneumatic actuators available
- Pneumatic valve service life up to 3 million cycles
Manufacturer Information
Lead Time: 3-5 days standard, 7-10 days for 100+ pieces
Certification: CE certified
Ordering: Available through Alibaba or direct inquiry with 24-hour response
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Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Shenzhen Wofly Technology Co., Ltd.
Location
Foor 2, 4th Buidling, A Zone, Xinhe Xinxing Industrial 3th Zone, Fuhai Avenue, Baoan, Guangdong, China.
Contact Person
Catlin Zeng