Low-friction POM
For low-speed starts, dry sliding or stick-slip noise, start with PTFE-modified EPTL402. Compare starting force, running torque and wear separately for steel–plastic and plastic–plastic pairs.
Material selection for water-control components
Water Control
Spool sticking and seal leakage can begin with changing clearances. Prioritize starting friction and wear at moving interfaces, and creep and warpage in pressure housings; screen formulations against fluid and water temperature.
Water Control
Spool sticking and seal leakage can begin with changing clearances. Prioritize starting friction and wear at moving interfaces, and creep and warpage in pressure housings; screen formulations against fluid and water temperature.
- Medium and temperatureWater, mixed media, or additive types, working and peak temperature
- Pressure and cyclesWorking pressure, pressure difference, opening/closing or rotation method, cycle count, and load
- Movement and sealingValve core and valve cylinder fit, sealing positions, clearances, friction, and leakage phenomena
- Size and assemblyKey dimensions, shrinkage, warpage, threads or press-fit structures, and mold stage
Typical components
Material requirements for water control parts
Valve internals & actuation
Uneven spool wear and thermal changes can close motion clearance. Compare starting force and clearance retention, then return and sealing after thermal cycles.
Valve Spool Assembly
Uneven spool wear changes clearance and opening force. Balance starting friction with sealing fit; check sticking under pressure differential and cyclic wear.
Valve spools & cartridges
Wear-resistant & low-friction POM
For low-speed starts, dry sliding or stick-slip noise, start with PTFE-modified EPTL402. Compare starting force, running torque and wear separately for steel–plastic and plastic–plastic pairs.
For repeated opening wear, start with PTFE-modified EPTL402 and compare MoS₂-modified EMS102/EMS162. Check clearance and sealing after fluid exposure at the target temperature; verify grade-specific documents for drinking-water projects.
View materials & gradesRolling guidance
Bore wear widens radial clearance; eccentric load and heat accelerate failure. Compare starting torque and bore retention, then temperature rise under loaded rotation.
Guide Wheel
Bore wear causes wheel wobble; waterborne particles may worsen abrasion. Compare bore wear resistance and starting resistance, then roundness and radial clearance.
Valve spools & cartridges
Wear-resistant & low-friction POM
For low-speed starts, dry sliding or stick-slip noise, start with PTFE-modified EPTL402. Compare starting force, running torque and wear separately for steel–plastic and plastic–plastic pairs.
For repeated opening wear, start with PTFE-modified EPTL402 and compare MoS₂-modified EMS102/EMS162. Check clearance and sealing after fluid exposure at the target temperature; verify grade-specific documents for drinking-water projects.
View materials & gradesValve housings
Pressure deformation shifts seal locations; threads and press fits concentrate stress. Balance stiffness and toughness, then dimensions after pressure and thermal cycles.
Valve housing components
Sustained pressure can cause housing creep; threads and press fits concentrate assembly stress. Balance stiffness with toughness; check seal location and warpage after pressure exposure.
Glass fiber reinforced POM
For load deformation or location drift, compare EGH302H (15% GF) with EGH602H (30% GF). Alongside stiffness, check orientation-driven warpage, assembly toughness and mating-surface wear.
View materials & gradesPumping
Blade deformation changes flow and balance; uneven bore wear adds vibration. Compare flexural stiffness and dimensional retention, then blade shape and clearance after fluid exposure.
Pump impeller
Blade deformation changes flow and balance; uneven bore wear increases vibration. Compare flexural stiffness and dimensional retention, then blade shape and shaft fit after fluid exposure.
Glass fiber reinforced POM
For load deformation or location drift, compare EGH302H (15% GF) with EGH602H (30% GF). Alongside stiffness, check orientation-driven warpage, assembly toughness and mating-surface wear.
View materials & gradesMaterial options
Narrow the material range according to water conditions
Choose the formulation for the dominant failure mode, then build a first comparison with the baseline grades below. Consult each TDS for properties and molding conditions.
Wear-resistant POM
For repeated opening wear, start with PTFE-modified EPTL402 and compare MoS₂-modified EMS102/EMS162. Check clearance and sealing after fluid exposure at the target temperature; verify grade-specific documents for drinking-water projects.
Glass fiber reinforced POM
For load deformation or location drift, compare EGH302H (15% GF) with EGH602H (30% GF). Alongside stiffness, check orientation-driven warpage, assembly toughness and mating-surface wear.
Next step
Get candidate grades and trial priorities
Send a part drawing or function, the current failure and material, plus known operating conditions. Receive a candidate-grade comparison, TDS and molding-trial sample support, with the key checks for your part.