Viton Seat Wafer Check Valve
Overview
Check Valve is applicable for various pipelines with nominal pressure of PN1.0MPa~42.0 MPa, Class150~2500 and nominal diameter of DN15~1200mm, NPS1/2-48 and working temperature of -196~540℃ to be used for protecting from medium back flowing. The different materials selection can apply to the medium involving water, steam, oils, nitric acid, strong oxidizing medium and urea etc.
Specifications
Size: | 1/2" ~ 48" (DN15 ~ DN1200) |
Pressure range: | Class 150 ~ 1500 (PN16~PN420) |
Working temperature: | -196℃ ~ +560℃ |
Suitable medium: | Water, Steam, Oil products, etc |
Body material: | Carbon steel, Stainless steel, Alloy steel, Bronze, etc |
Structural Feature
Low volume, light weight, only 1/4~1/20 of those of traditional flanged check valve;
Short structural length, only 1/4~1/8 of that of traditional flanged check valve;
Applicable for and easily installed for vertical or horizontal pipelines;
Smooth flow passageway and small fluid resistance;
Narrow valve travel and small closedown impact;
Long service life and good reliability.
Standards
Manufacture Standard | Face to Face | Flange Drilling | Pressure-Temperature Class | Test Standard |
API594, API6D, JB/T8937 | API594, API6D JB/T8937 | JB/T74-90, GB/T13402, GB/T9112-9124, ANSI B16.5, API604, ASME B 16.47, DIN2543-2548 | JB/T74, GB/T9124, HG20604-20625, ASME B16.34, DIN2401, SH3406 | API598, JB/T9092 |