MSSExpansion JointUS / International

MSS SP-117

Bellows Seals for Globe and Gate Valves

bellows seal สำหรับ globe และ gate valve

Organization
MSS
Category
Expansion Joint
Edition
—
Region
US / International
Last Reviewed
2026-07-01
Status
draft
1

Overview

Bellows stem seals for globe and gate valves in zero-leak service.

2

Scope & Applicability

Applies To Industries

Chemical PlantPetrochemical

Issued and published by MSS for use within the following context:

  • Industries — Chemical Plant, Petrochemical
  • Region of use — US / International
  • Component category — Expansion Joint
3

Key Requirements

This standard sets out key requirements across the following areas:

  • Bellows Seal
  • Stem Sealing
4

Engineering Notes

Zero fugitive-emission valve stem seals.

6

Source, Edition & Status

Publisher
MSS
Industries
Chemical Plant, Petrochemical
Last Reviewed
2026-07-01
Last Updated
2026-07-01
Verified By
Engineering content reviewer
Content Status
draft
Disclaimer: Disclaimer: This page provides a simplified engineering reference only. It is not a replacement for the official standard. For design, inspection, procurement, and construction, always refer to the latest official standard and the applicable project specification.