Industrial Gate Valve RF Rising Stem PN 25 DN 250

Name: Industrial Gate Valve RF Rising Stem PN 25 DN 250
SKU: Z40H
Availability: InStock
Rating: 5 (1 reviews)

Key Specifications / Features

Leading Gate Valve Manufacturer Jonloo supplies Industrial Gate Valve with rising stem, outside screw and yoke, bolted bonnet and flange ends.

Request a quote

Detail Information

Details
Size:250mm
Pressure Rating: PN25
Body/Bonnet: ASTM A216 WCB
Wedge: ASTM A216 WCB
Flexible Wedge
Rising Stem
Outside screw and yoke
Bolted bonnet

Features
Simple structure, easy operation
Streamline shape, excellent regulation performance
Zero leakage, long service life
Valve disc is connected with stem without pin
Replaceable seat, bi-directional seal

Standards
Design and Manufacture: EN 1984/DIN 3352
Face to Face: DIN 3202
Flanged Ends : EN 1092-1
Test and Inspection:EN 12266-1/API 598

Send your message to this supplier

Name *

Company

Email *

Phone

Message *

FAQs

What is valve stem packing and its role in industrial valves?

Valve stem packing is a critical sealing component installed around the valve stem inside the bonnet area. Its primary function is to prevent internal media (gas or liquid) from leaking to the external environment while still allowing smooth linear or rotary movement of the stem.

In industrial applications such as oil & gas, petrochemical, and power generation, packing acts as a dynamic seal that must withstand continuous friction, pressure fluctuations, and thermal cycling. Unlike static seals, packing is constantly in contact with a moving component, making material selection and compression design extremely important.

High-performance packing systems are often designed to meet low-emission requirements such as API 622 and ISO 15848-1, ensuring fugitive emissions remain within strict environmental limits.