Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

3G Electric
RFQ CartGet a QuoteSign inSign up
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/8 in (M)NPT Inlet (In.) - Soft Seat Pneumatic Safety Valves
CONTROL DEVICESSoft Seat Pneumatic Safety Valves

CONTROL DEVICES Air Safety Valve: Soft Seat, 3/8 in (M)NPT Inlet (In.)

The CONTROL DEVICES Air Safety Valve: Soft Seat (MPN ST2533-1A050) is a soft seat pneumatic safety valve constructed with a brass body and silicone components. It features a 3/8 in (M)NPT inlet and a preset setting…

SKU 3G-OTH-158748

Brand
CONTROL DEVICES
Item
Air Safety Valve: Soft Seat, 3/8 in
Category
Soft Seat Pneumatic Safety Valves
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineer
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Technical Specifications

CONTROL DEVICES
Manufacturer Part Number
ST2533-1A050
Type
3/8 in (M)NPT Inlet (In.)
Preset Setting (PSI)
50 psi
View Full Spec Sheet

Technical Documents

No technical documents available for this product.
Request documentation →
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The CONTROL DEVICES Air Safety Valve: Soft Seat (MPN ST2533-1A050) is a soft seat pneumatic safety valve constructed with a brass body and silicone components. It features a 3/8 in (M)NPT inlet and a preset setting of 50 PSI. This valve is designed for overpressure protection in pneumatic systems.

Frequently Asked Questions

What is the CONTROL DEVICES Air Safety Valve used for?

The CONTROL DEVICES Air Safety Valve (ST2533-1A050) provides overpressure protection in pneumatic systems. Its soft seat design ensures reliable sealing, while the preset 50 PSI setting automatically vents excess pressure to safeguard downstream equipment and personnel.

What are the specifications of the CONTROL DEVICES Air Safety Valve?

This valve has a 3/8 in (M)NPT inlet, a preset pressure of 50 PSI, and a brass body with silicone seals. It features a soft seat for bubble-tight shutoff. The manufacturer part number is ST2533-1A050, and it is made by CONTROL DEVICES.

Where to buy CONTROL DEVICES Air Safety Valve worldwide?

3G Electric supplies the CONTROL DEVICES Air Safety Valve worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this soft seat pneumatic safety valve.

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

Install the valve with the inlet connected to the protected system and the outlet vented to a safe area. Ensure the preset pressure matches your system requirements. Use thread sealant on the 3/8 in NPT connection and test for leaks after installation.

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.

You might also need

Burners & Combustion →Pumps & Compressors →Spare Parts →All Products →

Similar products

Matched by specification & description
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/8 in (M)NPT Inlet (In.), 150 psi Preset Setting (PSI) (MPN ST2533-1A150). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/8 in (M)NPT Inlet (In.), 150 psi Preset Setting (PSI) (MPN ST2533-1A150). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/8 in (M)NPT Inlet (In.), 75 psi Preset Setting (PSI) (MPN ST2533-1A075). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/8 in (M)NPT Inlet (In.), 75 psi Preset Setting (PSI) (MPN ST2533-1A075). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 100 psi Preset Setting (PSI) (MPN ST25-1A100). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 100 psi Preset Setting (PSI) (MPN ST25-1A100). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/8 in (M)NPT Inlet (In.), 100 psi Preset Setting (PSI) (MPN ST2533-1A100). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/8 in (M)NPT Inlet (In.), 100 psi Preset Setting (PSI) (MPN ST2533-1A100). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 50 psi Preset Setting (PSI) (MPN ST25-1A050). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 50 psi Preset Setting (PSI) (MPN ST25-1A050). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/8 in (M)NPT Inlet (In.), 125 psi Preset Setting (PSI) (MPN ST2512-1A125). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/8 in (M)NPT Inlet (In.), 125 psi Preset Setting (PSI) (MPN ST2512-1A125). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.

More from CONTROL DEVICES

View all CONTROL DEVICES parts →
CONTROL DEVICES Air Safety Valve: Soft Seat, 1 1/4 in (M)NPT Inlet (In.), Brass, Silicone, Lead (MPN SW12-0A075). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Lead; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 1 1/4 in (M)NPT Inlet (In.), Brass, Silicone, Lead (MPN SW12-0A075). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Lead; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/4 in (M)NPT Inlet (In.), 300 psi Preset Setting (PSI) (MPN SB75-0A300). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Lead; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/4 in (M)NPT Inlet (In.), 300 psi Preset Setting (PSI) (MPN SB75-0A300). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Lead; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/2 in (M)NPT Inlet (In.), 225 psi Preset Setting (PSI) (MPN SF50-1A225). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Lead; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/2 in (M)NPT Inlet (In.), 225 psi Preset Setting (PSI) (MPN SF50-1A225). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Lead; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES Air Safety Valve: Soft Seat, 1 in (M)NPT Inlet (In.), 75 psi Preset Setting (PSI) (MPN SW10-0A075). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Lead; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 1 in (M)NPT Inlet (In.), 75 psi Preset Setting (PSI) (MPN SW10-0A075). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Lead; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/4 in (M)NPT Inlet (In.), 250 psi Preset Setting (PSI) (MPN SB75-0A250). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Lead; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/4 in (M)NPT Inlet (In.), 250 psi Preset Setting (PSI) (MPN SB75-0A250). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Lead; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 300 psi Preset Setting (PSI) (MPN ST25-1A300). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 1/4 in (M)NPT Inlet (In.), 300 psi Preset Setting (PSI) (MPN ST25-1A300). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/8 in (M)NPT Inlet (In.), 60 psi Preset Setting (PSI) (MPN ST2533-1A060). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/8 in (M)NPT Inlet (In.), 60 psi Preset Setting (PSI) (MPN ST2533-1A060). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Silicone; attr292009: Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/4 in (M)NPT Inlet (In.), 3/4 in (F)NPT Outlet (In.) (MPN SCB7575-0A150). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Lead; attr292009: Cast Brass; attr294753: CONTROL DEVICES.
CONTROL DEVICES
CONTROL DEVICES Air Safety Valve: Soft Seat, 3/4 in (M)NPT Inlet (In.), 3/4 in (F)NPT Outlet (In.) (MPN SCB7575-0A150). Key specifications — attr291993: Soft Seat; attr291998: Brass; attr292001: Silicone; attr292007: Lead; attr292009: Cast Brass; attr294753: CONTROL DEVICES.