Description

The BS5163 Rising Stem Gate Valve is a robust industrial valve designed for reliable isolation in piping systems. Featuring a rising stem design (Outside Screw & Yoke), it provides clear visual indication of the valve position (open or closed). Constructed with a cast iron body and brass/stainless steel sealing surfaces, it is suitable for water and steam applications up to 120°C. For larger sizes (DN250+), the body is upgraded to Ductile Iron for enhanced strength.

Technical Specifications:

Nominal Diameter (DN): DN50 – DN300
Nominal Pressure (PN): 1.6 MPa (PN16)
Test Pressure (Shell/Strength): 2.4 MPa
Test Pressure (Seal): 1.8 MPa
Suitable Temperature: ≤ 120°C
Applicable Medium: Water, Steam

Main Parts and Materials:

Parts Name	Materials
Body, Bonnet	Cast iron/ductile iron
Disc	Cast iron/ductile iron
Stem	Stainless steel/brass
Seat Ring	Brass/stainless steel

Key Product Features:

Visual Position Indication: The rising stem design allows operators to easily see if the valve is open or closed from a distance.
Durable Sealing: Metal-to-metal sealing with Bronze or Stainless Steel rings ensures long service life and resistance to wear, suitable for steam applications up to 120°C.
Heavy Duty Construction: Standard cast iron body for smaller sizes, upgrading to Ductile Iron for larger diameters (DN250+) to handle higher mechanical stresses.
Low Friction Operation: The stem nut is made of bronze to reduce friction and ensure smooth handwheel operation.