Forged Valve
Forged Valve
Forged Valve
Forged Valve
Forged Valve

Stainless Steel Manual Welding Quick-Connect Forged Diaphragm Valve

JN-DV-23 1005-3
Diameter range: DN8～DN100 (1/4"～4")
Working pressure: ≤10 bar
Working te m perature: -10° C～150° C (depending on diaphragm material)
Diaphragm material: E P D M , P T F E , EPDM+PTFE composite
Valve body connection: quick -install, welding, thread
Operation mode: manual, pneumatic , electric
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Stainless Steel Manual Welding Quick-Connect Forged Diaphragm Valve

Stainless Steel Manual Welding Quick-Connect Forged Diaphragm Valve is amanual hygienic forged diaphragm valvewithwelding & quick-connect dual connection. It is mainly installed on high-purity pharmaceutical, biotech and food pipelinesforon-off and flow control of clean media. Types include forged 304/316L versions, PTFE/EPDM diaphragms, normally open/closed structures,featuringno dead legs, full polish, CIP/SIP capability, high pressure resistance, and complying withDIN/ISO/3A/GMPstandards.
 
Stainless Steel Manual Welding Connect Valveadoptsforged stainless steel body, welding & quick-connect dual-mode connection, crevice-free flow passage, which is higher strength and cleaner than ordinary cast diaphragm valves. It hasbetter pressure resistance, no porosity, and longer service life. Our product usesprecision forging process, full interior polishing, reinforced diaphragm seal and GMP/3A standard design, withhigher hygiene, stronger durability, easier installation and lower maintenance than similar products.

Accessories

 Component & Material Table
  • Valve Body & Bonnet： 304/316L Stainless Steel (sanitary-grade forging, polished finish)
  • Diaphragm： EPDM (food-grade, corrosion-resistant, for flow control)
  • Valve Seat & Sealing Gasket： PTFE/EPDM (food-grade, leak-proof)
  • Stem & Actuator Connection： 304/316L Stainless Steel (wear-resistant, precision machined)
  • Manual/Actuated Handle： 304 Stainless Steel/Aluminum Alloy (anti-slip, ergonomic design)
  • Quick-clamp/Tri-clamp Fittings： 304/316L Stainless Steel (polished finish, reduced diameter for flow control)
Product Parameter Details

  • Material：Main body：304/316L Stainless Steel (sanitary-grade forging, polished)；Diaphragm & Seals：Food-grade EPDM/PTFE；Handle：304 Stainless Steel/Aluminum Alloy；Stem：304/316L Stainless Steel (hardened)

  • Structure Form：Standard：Forged three-way (T-port/L-port) body，Clamp-type (Tri-clamp) ends, external flow control stem；Optional：Reduced port size for throttling，Jacketed structure (steam/cold water) for temperature control

  • Pressure Rating：Working Pressure：0-10 bar (0-150 PSI)；Test Pressure：1.5× working pressure；Vacuum Rating：Full vacuum (with EPDM diaphragm)

  • Function：Precise flow regulation & on/off control，Three-way flow diversion or mixing，Bubble-tight shutoff，Diaphragm isolation (prevents media contact with stem)

  • Grade Classification：Hygiene Grade：Sanitary-grade (Polished Ra≤0.8µm)，Complies with 3A, EHEDG, cGMP；Application：Food & Beverage, Pharmaceutical, Biotech；No dead-leg design

  • Specification Match：Connection Standards：DIN 11851, SMS, 3A, ISO 2852；Size Range：1/2"– 4"(standard)，Larger sizes customizable；Actuator Interface：ISO 5211 mounting pad

  • Certification Grade：Hygiene Certification：3A, FDA, EHEDG compliant；Material Safety：FDA 21 CFR 177.2600, EU 10/2011；Quality Certification：CE PED, ISO 9001

  • Installation Direction：Horizontal or vertical installation (no restriction)，Handle/actuator recommended upward for ease of operation and maintenance，Diaphragm life unaffected by installation angle

  • Customization Service：Custom port sizes & reduction ratios，Special diaphragm/seal materials (Silicone, Viton, PTFE)，Electropolishing (Ra≤0.4µm)，Custom actuator mounting (pneumatic/electric)，Jacketed version for heating/cooling

Stainless Steel Manual Welding Quick-Connect Forged Diaphragm Valve

Feature (F), Advantage (A), Benefit (B)

  1. Raw Material:
  • F: 100% virgin 304/316L stainless steel for forged valve body & bonnet; FDA-compliant food-grade EPDM diaphragms & seals.
  • A: Exceptional corrosion resistance; eliminates risk of material leaching; fully compliant with stringent hygienic regulations.
  • B: Guarantees product purity for sensitive food, pharmaceutical, and biotech applications; ensures process integrity.
  1. Processing Technology:
  • F: Full internal mirror polishing (Ra≤0.6μm); integral body forging with smooth bore transition; no internal crevices.
  • A: Ultra-smooth surface prevents bacterial adhesion; excellent cleanability and sterilizability; superior mechanical strength.
  • B: Reduces CIP/SIP cycle times and costs; meets or exceeds 3A and EHEDG hygienic standards; ensures long-term reliability.
  1. Structure Feature:
  • F: Forged three-way body with dual independent valve seats；Tri-clamp connections; Single stem operating dual diaphragms in a compact housing
  • A: Enables flow switching, diversion, or mixing functions in one valve assembly; Allows for quick disassembly.
  • B: Replaces the need for multiple two-way valves and fittings，saving space, cost, and potential leak points; Ideal for batch processing and manifold systems。
  1. Core Component Feature (Diaphragm & Stem):
  • F: Reinforced arch-profile EPDM diaphragms for each port; Hardened 316L stainless steel common stem with precise guidance.
  • A: Each diaphragm provides a separate, bubble-tight seal and sterile barrier for its port；Synchronized operation ensures reliable flow control.
  • B: Prevents cross-contamination between different lines；Maintenance is simple, often requiring only diaphragm replacement; Low total cost of ownership.
  1. Flow Control Feature:
  • F: Diaphragm lift provides smooth throttling control; Reduced bore design on selected ports for enhanced flow regulation.
  • A: Enables precise and repeatable flow adjustment for each path; Minimizes shear and pressure drop.
  • B: Optimizes processes like formulation, blending, and filling with accurate multi-line control.
 
Stainless Steel Manual Welding Quick-Connect Forged Diaphragm Valve
 
Interface Mode：Clamp-type quick-install (DIN/SMS/3A/ISO standard); customizable threaded/flanged ends
Production & Processing Method：Full CNC precision machining; one-piece forging shaping; no welding dead corners
Surface Treatment：Inner cavity mirror polishing (Ra ≤ 0.8μm); outer surface electrolytic polishing/passivation; sanitary-grade anti-corrosion treatment
Raw Material Processing Method：Valve body & ball: 304/316L stainless steel forging (high structural density, no porosity); accessories: precision casting/stamping
Operation Mode：Standard manual (ergonomic rotary handle); customizable pneumatic/electric actuation
Seal Ring Material Options：Food-grade PTFE, EPDM, Viton (FKM); FDA/3A certified for hygienic applications
Sealing Method：Center seal (zero clearance fit between valve ball and seat); high-precision surface sealing for leak-free performance
 
 
 

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