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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 ST25-1A275) 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 275 PSI.

SKU 3G-OTH-158731

Also listed as: ST251A275 · ST25 1A275

Brand
CONTROL DEVICES
Item
Air Safety Valve: Soft Seat, 1/4 in
Category
Soft Seat Pneumatic Safety Valves
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

CONTROL DEVICES
Manufacturer Part Number
ST25-1A275
Type
1/4 in (M)NPT Inlet (In.)
Preset Setting (PSI)
275 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 ST25-1A275) 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 275 PSI.

Frequently Asked Questions

What is the CONTROL DEVICES Air Safety Valve ST25-1A275 used for?

The CONTROL DEVICES Air Safety Valve ST25-1A275 is a soft seat pneumatic safety valve used to protect compressed air systems from overpressure. It is commonly installed in industrial pneumatic circuits, air compressors, and air handling equipment to automatically relieve pressure when it exceeds the preset 275 psi limit.

What are the specifications of the CONTROL DEVICES ST25-1A275 air safety valve?

The CONTROL DEVICES ST25-1A275 is a soft seat pneumatic safety valve with a brass body and silicone seat and seal components. It has a 1/4 in (M)NPT inlet and a preset relief pressure of 275 psi. The manufacturer part number is ST25-1A275, and the valve is designed for air service.

Where to buy CONTROL DEVICES ST25-1A275 air safety valves worldwide?

CONTROL DEVICES ST25-1A275 air safety valves are available to order through 3G Electric, a global industrial equipment distributor. We source and deliver this valve worldwide, handling full logistics, customs clearance, and delivery to your site. Contact 3G Electric for pricing and lead time.

How to install a CONTROL DEVICES soft seat air safety valve?

Install the CONTROL DEVICES ST25-1A275 by threading the 1/4 in (M)NPT inlet into a compatible port using thread sealant. Orient the valve so the discharge port is unobstructed and points away from personnel. Do not adjust the preset 275 psi spring setting. Test for leaks after installation per standard pneumatic safety practices.

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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Cross-referenced by specification & description
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 225 psi Preset Setting (PSI) (MPN ST25-1A225)
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