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Inverted BucketSCCV® DesignPN16Ductile Iron Body

ES8N/ES8NF Inverted Bucket Steam Trap

MIYAWAKI ES8N/ES8NF Inverted Bucket Steam Trap with extended lifespan SCCV® design, ductile iron body, operating pressure 0.01-1.6MPa, max temperature 350℃, threaded/flanged connections available.

MIYAWAKI ES8N Inverted Bucket Steam Trap

Product Overview

MIYAWAKI ES8N/ES8NF is an inverted bucket steam trap featuring the extended lifespan SCCV® design. By allowing the inverted bucket to float freely within the disc holder, it reduces impact force during condensate discharge and minimizes wear, effectively extending overall equipment service life. Ideal for condensate drainage in steam systems.

Core Structure & Design

Key components of the SCCV® design:

MIYAWAKI ES8N/ES8NF Inverted Bucket Steam Trap - Structure

ComponentFunction
LeverConnects bucket to disc, transmits motion
SeatSeals with disc, controls medium flow
DiscOpens/closes with bucket motion, regulates flow
Inverted BucketCore floating component, senses condensate via buoyancy
Disc HolderProvides bucket floating space, cushions impact

Technical Specifications

Complete Model Specifications

MIYAWAKI ES8N/ES8NF Inverted Bucket Steam Trap - Dimensions

ModelConnectionDN(mm)Operating Pressure(MPa)Max Temp(℃)Body MaterialDimensions(mm)Weight(kg)
ESSN-5Threaded(RC·NPT)150.01-0.5·0.8·1.6350Ductile Iron(FCMD40)L=130, H1=73, H2=90, W=1003.7
ESSN-8Threaded(RC·NPT)200.01-0.5·0.8·1.6350Ductile Iron(FCMD40)L=135, H1=73, H2=90, W=1003.9
ESSN-16Threaded(RC·NPT)250.01-0.5·0.8·1.6350Ductile Iron(FCMD40)L=175, H1=73, H2=90, W=1005.3
ESSNF-5Flanged(F·HF)150.01-0.5·0.8·1.6350Ductile Iron(FCMD40)L=195, H1=73, H2=90, W=1005.7
ESSNF-8Flanged(F·HF)200.01-0.5·0.8·1.6350Ductile Iron(FCMD40)L=215, H1=68, H2=95, W=1006.8
ESSNF-16Flanged(F·HF)250.01-0.5·0.8·1.6350Ductile Iron(FCMD40)L=215, H1=68, H2=95, W=1006.8

Flow Characteristics

MIYAWAKI ES8N/ES8NF Inverted Bucket Steam Trap - Flow Chart

The flow vs operating pressure relationship for ES8N can be referenced in the flow chart. Condensate discharge flow (kg/h) increases linearly with pressure at different operating conditions, suitable for various steam system load requirements.