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CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.) - Soft Seat Pneumatic Safety Valves
CONTROL DEVICESSoft Seat Pneumatic Safety Valves

CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.)

The CONTROL DEVICES Air Safety Valve: Soft Seat (MPN ST25-1A300) is a soft seat pneumatic safety valve with a brass body and silicone components. It features a 1/4 in (M)NPT inlet and a preset setting of 300 PSI.

SKU 3G-OTH-158733

Also listed as: ST251A300 · ST25 1A300

Brand
CONTROL DEVICES
Item
Air Safety Valve: Soft Seat, 1/4 in
Category
Soft Seat Pneumatic Safety Valves
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Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

CONTROL DEVICES
Manufacturer Part Number
ST25-1A300
Type
1/4 in (M)NPT Inlet (In.)
Preset Setting (PSI)
300 psi

Technical Documents

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CONTROL DEVICES Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The CONTROL DEVICES Air Safety Valve: Soft Seat (MPN ST25-1A300) is a soft seat pneumatic safety valve with a brass body and silicone components. It features a 1/4 in (M)NPT inlet and a preset setting of 300 PSI.

Frequently Asked Questions

What is a CONTROL DEVICES Air Safety Valve used for?

This soft seat pneumatic safety valve protects compressed air systems from overpressure. It is used in industrial pneumatic circuits, instrumentation panels, and process control lines to automatically relieve excess pressure at its 300 psi preset setting.

What are the specifications of the CONTROL DEVICES ST25-1A300?

The CONTROL DEVICES ST25-1A300 is a soft seat air safety valve with a brass body and silicone seals. It has a 1/4 in (M)NPT inlet and a preset relief pressure of 300 psi. The manufacturer part number is ST25-1A300.

Where to buy CONTROL DEVICES air safety valves worldwide?

3G Electric supplies CONTROL DEVICES air safety valves worldwide. As a global industrial sourcing partner, we handle logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on the ST25-1A300 or other pneumatic safety valves.

How to install a soft seat pneumatic safety valve?

Install the CONTROL DEVICES ST25-1A300 with the inlet connected to the protected system using compatible thread sealant on the 1/4 in (M)NPT threads. Ensure the discharge port is unobstructed and directed away from personnel. Do not adjust the factory-set 300 psi relief pressure.

Used in

Common applications for CONTROL DEVICES
Compressed air systems — CONTROL DEVICES soft seat safety valves (SB75-0A150) for overpressure protection on air receivers
Regenerative blower installations — CONTROL DEVICES pressure and vacuum relief valves (NBR20-0T017) for blower protection
Engine-driven compressor packages — CONTROL DEVICES throttle controls (TC63-4KA000) for pneumatic speed regulation
Industrial pneumatic networks — CONTROL DEVICES hard seat safety valves (SN50-1A100) for high-temperature relief applications
Compressor tank maintenance — CONTROL DEVICES in-tank check valves (P3850-1EP) for backflow prevention
Instrument air systems — CONTROL DEVICES in-line check valves (M2525-1WA) for directional flow control

CONTROL DEVICES Products

3G Electric supplies CONTROL DEVICES soft seat pneumatic safety valves. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 275 psi Preset Setting (PSI) (MPN ST25-1A275)
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 275 psi Preset Setting (PSI) (MPN ST25-1A275)
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 250 psi Preset Setting (PSI) (MPN ST25-1A250)
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CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 250 psi Preset Setting (PSI) (MPN ST25-1A250)
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 225 psi Preset Setting (PSI) (MPN ST25-1A225)
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 225 psi Preset Setting (PSI) (MPN ST25-1A225)
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 50 psi Preset Setting (PSI) (MPN ST25-1A050)
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 50 psi Preset Setting (PSI) (MPN ST25-1A050)
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 75 psi Preset Setting (PSI) (MPN ST25-1A075)
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 75 psi Preset Setting (PSI) (MPN ST25-1A075)
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 175 psi Preset Setting (PSI) (MPN ST25-1A175)
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 175 psi Preset Setting (PSI) (MPN ST25-1A175)

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