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

3G Electric
SPENCE 81S-CSD9 Standard Inverted-Bucket Steam Trap - Standard Inverted-Bucket Steam Traps
SPENCEStandard Inverted-Bucket Steam Traps

SPENCE 81S-CSD9 Standard Inverted-Bucket Steam Trap

The SPENCE 81S-CSD9 is a standard inverted-bucket steam trap made of cast iron, configured for in-line horizontal installation with 3/4-inch FNPT connections. It has a maximum capacity of 760 lb/hr, a maximum…

SKU 3G-OTH-71538

Also listed as: 81SCSD9 · 81S CSD9

Brand
SPENCE
Item
81S-CSD9 Standard Inverted-Bucket Steam Trap
Part Number
81S-CSD9
Category
Standard Inverted-Bucket Steam Traps
Available to Order
Also known as:81S-CSD9SPENCE
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
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

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

SPENCE
Manufacturer Part Number
81S-CSD9
Type
760 lb/hr, Strainer Included
FNPT
3/4 in
Max.
250 psi
Configuration
In-line
Installation Orientation
Horizontal

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

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

Product Description

The SPENCE 81S-CSD9 is a standard inverted-bucket steam trap made of cast iron, configured for in-line horizontal installation with 3/4-inch FNPT connections. It has a maximum capacity of 760 lb/hr, a maximum pressure of 250 psi, and a maximum temperature of 450°F, and includes a built-in strainer.

Frequently Asked Questions

What is the SPENCE 81S-CSD9 steam trap used for?

The SPENCE 81S-CSD9 inverted-bucket steam trap removes condensate from steam lines in industrial heating and process systems. It is designed for horizontal in-line installation with 3/4-inch FNPT connections, handling up to 760 lb/hr at 250 psi and 450°F.

What are the specifications of the SPENCE 81S-CSD9 steam trap?

The SPENCE 81S-CSD9 is a cast-iron inverted-bucket steam trap with 3/4-inch FNPT connections, 760 lb/hr capacity, 250 psi maximum pressure, and 450°F maximum temperature. It includes a built-in strainer and requires horizontal in-line installation.

Where to buy the SPENCE 81S-CSD9 steam trap worldwide?

3G Electric supplies the SPENCE 81S-CSD9 steam trap to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for availability and lead time on this cast-iron inverted-bucket steam trap with built-in strainer.

How to install the SPENCE 81S-CSD9 steam trap?

Install the SPENCE 81S-CSD9 horizontally in the steam line with the arrow on the body pointing in the flow direction. Ensure the 3/4-inch FNPT connections are properly sealed. Always follow manufacturer guidelines for piping support and blowdown valve placement.

Used in

Common applications for SPENCE
Steam condensate removal in industrial process heating — SPENCE inverted-bucket steam traps (e.g., 85-CPG9)
Pressure reduction for steam distribution in commercial buildings — SPENCE D50A pressure regulators
Modulating control of steam flow in heat exchangers — SPENCE pneumatic globe control valves (e.g., K1TC811-36RA)
Air venting from steam mains and headers — SPENCE NAV-213 air vents
Condensate drainage in low-pressure steam heating systems — SPENCE 81S-C1E9 steam traps with strainer
Not sure this is the right part? Photo-identify it

SPENCE Products

3G Electric supplies SPENCE standard inverted-bucket steam traps. 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

More from SPENCE

View all SPENCE parts
Cast iron inverted-bucket steam trap for horizontal in-line installation. 1-1/2 inch FNPT connections, maximum capacity 9,800 lb/hr, maximum pressure 30 psi. Strainer not included. Used to automatically drain condensate from steam lines while preventing steam loss
SPENCE
Cast iron inverted-bucket steam trap for horizontal in-line installation. 1-1/2 inch FNPT connections, maximum capacity 9,800 lb/hr, maximum pressure 30 psi. Strainer not included. Used to automatically drain condensate from steam lines while preventing steam loss
Cast iron inverted-bucket steam trap for in-line horizontal installation. 2-inch FNPT connections, maximum capacity 10,000 lb/hr, maximum pressure 180 psi, maximum temperature 450°F. Strainer not included. Used to discharge condensate from steam lines while preventing steam loss
SPENCE
Cast iron inverted-bucket steam trap for in-line horizontal installation. 2-inch FNPT connections, maximum capacity 10,000 lb/hr, maximum pressure 180 psi, maximum temperature 450°F. Strainer not included. Used to discharge condensate from steam lines while preventing steam loss

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first