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Pneumatic valve JSB
pneumatically-operatedfor waterfor air

Pneumatic valve - JSB - SMC PNEUMATIC - pneumatically-operated / for water / for air
Pneumatic valve - JSB - SMC PNEUMATIC - pneumatically-operated / for water / for air
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Characteristics

Operation
pneumatic, pneumatically-operated
Media
for water, for air, for steam
Body
threaded, angle seat, weld
Material
stainless steel
Other characteristics
with butt weld ends, with threaded connection, with tri-clamp connection
DN

Max.: 50 mm
(1.969 in)

Min.: 10 mm
(0.394 in)

Pressure

Max.: 1.6 MPa

Min.: 1 MPa

Description

Product overview
  • ATEX-compliant variant: 55-JSB series available
  • New connection options: clamp and butt-weld types added
  • Angle-seat design minimizes pressure loss
  • Long service life: 10,000,000 cycles (air/water), 3,000,000 cycles (steam)
  • High flow capacity: optimized internal flow channel (Cv ≈ 2.5× conventional)
  • Compact installation height: 166 mm (port size 1 in)
  • All-in-one stainless-steel construction (equivalent to 316L)
  • Compatible media: air, water, steam


Features
  • Low pressure loss due to angle-seat geometry
  • Low leakage performance
  • High Cv and large flow rate
  • Proven long cycle life for air/water/steam
  • Modular design — individual parts replaceable for easy maintenance


Connection types / Product types
  • Thread (standards: RcM, NPT, G) — nominal sizes: 3/8, 1/2, 3/4, 1, 1-1/4, 1-1/2, 2 — Cv: 5.0, 8.0, 16.0, 29.1, 41.3, 59.5, 87.5
  • Butt weld (B1) (standards: DIN EN ISO 1127 / ISO 4200 / DIN 11866 B) — nominal dia: DN10, DN15, DN20, DN25, DN32, DN40, DN50 — Cv: 5.1, 8.4, 17.5, 31.2, 43.0, 60.6, 88.5
  • Butt weld (B2) (standards: ASME BPE / DIN 11866 C) — nominal sizes: 1/2, 3/4, 1, 1-1/2, 2, 2-1/2 — Cv: 2.8, 7.0, 16.2, 41.2, 60.8, 88.5
  • Clamp (C1) (standard: DIN 32676-B) — nominal dia: DN10, DN15, DN20, DN25, DN32, DN40, DN50 — Cv: 5.1, 8.4, 17.5, 31.2, 43.0, 60.6, 88.5
  • Clamp (C2) (standard: ASME BPE) — nominal sizes: 1/2, 3/4, 1, 1-1/2, 2 — Cv: 2.8, 7.0, 16.2, 41.2, 60.8


Key advantages
  • Angle-seat geometry reduces pressure loss and enables higher flow compared with conventional valves
  • Optimized internal flow channel provides a significant Cv increase (approx. 2.5×)
  • Stainless-steel body (316L equivalent) suitable for air, water and steam
  • Durability verified by cycle life tests (10 million air/water; 3 million steam)
  • Multiple connection standards for easy integration into process piping
  • Designed for maintainability with replaceable components


Applications
  • Fluid control for compressed air, process water and steam systems
  • Ideal where low pressure drop, high flow capacity and long service life are required


Specifications / Technical data
  • Series: JSB (Angle seat valve, air-operated)
  • Body material: Stainless steel equivalent to 316L (all-in-one stainless construction)
  • Media: Air, Water, Steam
  • Service life: 10,000,000 cycles (Air/Water), 3,000,000 cycles (Steam)
  • Installation height (example): 166 mm (port size 1 in)
  • Cv improvement: approx. 2.5× versus conventional valves
  • Connection options and standards: Thread (RcM/NPT/G), Butt weld (DIN EN ISO 1127 / ISO 4200 / DIN 11866 B; ASME BPE / DIN 11866 C), Clamp (DIN 32676-B / ASME BPE)
  • Nominal diameters: DN10–DN50 (metric) and inch sizes (3/8–2 in depending on connection)
  • Cv factor ranges: see connection-type entries above
  • ATEX: 55-JSB series available as ATEX-compliant variant
  • Maintenance: modular, replaceable parts for easy servicing

Catalogs

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