Bellow Seal Globe Valve

GL25 Series (Straight Type)

Engineered for steam isolation applications.

What’s Inside Matters

Engineered for Performance

The GL25 Series incorporates a fully sealed bellows system that prevents fugitive emissions and ensures zero stem leakage over extended cycles.

Oversized handwheel for easy handling and position indicator allows user to know (OPEN / CLOSE) status of the valve.

Metal back seat has been provided to arrest leakage to the atmosphere in case of bellow failure.

Tongue and Groove Body and Bonnet designed to avoid any leak between joints.

Completely welded multiple layer stainless steel bellows are secured against torque and designed to last as per MSS SP-117 cycle life.

Standard 360° free rotation and conical plug provides a tighter closure while maintaining seat clean from shards. Both seat and plug are made out of hardened chromium steel 1.4021 or with stellite.

TA-LUFT certified full size safety gland packing made of pure graphite together with our bellows, guaranteeing 100% zero leak to the atmosphere. Can also be supplied in PTFE on request for other chemical applications.

GL25 Series

The GL25 Series Bellow Seal Globe Valve is purpose-built for steam isolation in high-temperature and high-pressure environments.

Specifications

Design

Straight Type

Body Material

Cast Iron
Forged Steel / A105
Ductile Iron
St. St. 304
Cast Carbon Steel
St.St 316 / 1.4571

Plug Material & Design

Plug:
St. Steel 1.4021 + Hard Faced 13% Cr

Plug Design:
1. Parabolic (For regulating)
2. Conical (For On Off)
3. Balancing (For 5” and above, high pressure)

Seat / Bellow Material

321 Ti
St.St 304
St.St 316 / 1.4571
Hastelloy C

Connection

BSPT – Tappered
NPT
Socket Weld
Flanged End
Butt Weld

Size

DN15 (½”) to DN150 (6”)

Automation Option & Accessories

N/A

Flow Capacity

For Standard Plug:
KVS = 4.8 – 1691
For Throttling Plug:
KVS = 4.36 – 1410

Pressure Rating

ANSI 150
ANSI 300
ANSI 600
ANSI 900
PN 16
PN 25
PN 40

Key Features

Performance Testing

Hydro Test

Air Leakage Test

Application Versatility

Built to Perform Across Industries

Our valves are engineered to deliver consistent performance across a wide range of demanding industrial environments.

Palm oil and oleochemical lines

General manufacturing

Water and wastewater pipelines

Power plant steam isolation

Chemical and blending applications

Available Options

Enhance Your Valve Functionality

Choose from a range of accessories designed to extend performance, simplify operation, and suit specific installation needs.

Get In Touch

Contact us if you require any assistance or for a quotation today.