316 Stainless Steel Manual Diaphragm Valve 1/4in Female Thread 31 MPa Pressure 100000 Cycle Life

Price Negotiable
Price: Negotiable
MOQ: 1
Delivery Time: Negotiable
Brand: AFK
Product Description
Product Overview

High-performance manual diaphragm valve designed for demanding industrial applications requiring precise flow control and exceptional durability.

Key Features & Specifications
  • Maximum working pressure: 31 MPa (4500 PSI)
  • Fully wrapped valve seat design for superior anti-expansion and contamination resistance
  • Nickel cobalt alloy diaphragm for enhanced durability and corrosion resistance
  • Surface roughness options: Ra0.25 μm (BA grade) or electropolished Ra0.13 μm (EP grade)
  • Helium test leakage rate: < 1×10⁻⁹ STD cm³/s
  • Pneumatic actuator compatibility available
  • Pneumatic valve service life: 100,000 cycles
High pressure 316 stainless steel manual diaphragm valve with 1/4 inch female thread
Component Materials
Item Part Description Material
1 Handle Aluminium
2 Actuator Aluminium
3 Valve Stem 304 Stainless Steel
4 Bonnet S17400
5 Bonnet Nut 316 Stainless Steel
6 Button Brass
7 Diaphragm Nickel Cobalt Alloy
8 Valve Seat PCTFE
9 Valve Body 316L Stainless Steel
Flow Performance Data
Air @ 21°C (70°F) | Water @ 16°C (60°F)
Pressure Drop Air Flow (L/min) Water Flow (L/min)
0.68 bar (10 psig) 64 2.4
3.4 bar (50 psig) 170 5.4
6.8 bar (100 psig) 300 7.6
Technical specifications and flow data diagram for manual diaphragm valve
Ordering Information & Dimensions
Basic Order Number Port Type & Size Dimensions (in/mm)
WV4H-6L-TW4- 1/4"-Tube-w A: 0.44" (11.2mm) | B: 0.3" (7.6mm) | C: 1.12" (28.6mm) | L: 1.81" (45.9mm)
WV4H-6L-FR4- 1/4"-FA-MCR A: 0.44" (11.2mm) | B: 0.86" (21.8mm) | C: 1.12" (28.6mm) | L: 2.85" (72.3mm)
WV4H-6L-MR4- 1/4"-MA-MCR1/4 A: 0.44" (11.2mm) | B: 0.58" (14.9mm) | C: 1.12" (28.6mm) | L: 2.24" (57.0mm)
WV4H-6L-TF4- OD A: 0.44" (11.2mm) | B: 0.70" (17.9mm) | C: 1.12" (28.6mm) | L: 2.54" (64.4mm)
Manual diaphragm valve installation and application examples
Company Information & Services
About Our Company
Established in 2011 and based in Guangdong, China, we serve global markets including Southeast Asia, Africa, Eastern Asia, and North America with a team of 51-100 professionals.
Quality Assurance
Pre-production sampling and final inspection before shipment ensure consistent product quality and reliability.
Product Range
We specialize in industrial valves and fittings including pressure regulators, tube fittings, solenoid valves, needle valves, and check valves.
Why Choose Us
Our experienced engineering team and dedicated technicians provide secure, reliable products backed by years of industry expertise.
Services Provided
Accepted delivery terms: FOB, CIF, EXW. Payment methods: T/T, L/C, Western Union in USD or CNY. Languages: English, Chinese.

Get in Touch

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

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