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SPENCE Steam Trap: Cast Iron, 1 in FNPT, 760 lb/hr, 250 psi Max., 450°F Max. - Standard Inverted-Bucket Steam Traps
SPENCEStandard Inverted-Bucket Steam Traps

SPENCE Steam Trap: Cast Iron, 1 in FNPT, 760 lb/hr, 250 psi Max., 450°F Max.

The SPENCE 81S-CSE9 is a cast iron standard inverted-bucket steam trap with a 1 in FNPT connection, rated for 760 lb/hr capacity, 250 psi maximum pressure, and 450°F maximum temperature. It features an in-line…

SKU 3G-OTH-71541

Also listed as: 81SCSE9 · 81S CSE9

Brand
SPENCE
Item
Steam Trap: Cast Iron, 1 in FNPT, 760 lb/hr, 250 psi Max., 450°F Max.
Category
Standard Inverted-Bucket Steam Traps
Available to Order
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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

SPENCE
Manufacturer Part Number
81S-CSE9
Type
760 lb/hr, Strainer Included
FNPT
1 in
Max.
250 psi
Configuration
In-line
Installation Orientation
Horizontal

Technical Documents

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

Product Description

The SPENCE 81S-CSE9 is a cast iron standard inverted-bucket steam trap with a 1 in FNPT connection, rated for 760 lb/hr capacity, 250 psi maximum pressure, and 450°F maximum temperature. It features an in-line configuration for horizontal installation and includes a built-in strainer.

Frequently Asked Questions

What is the SPENCE 81S-CSE9 steam trap used for?

The SPENCE 81S-CSE9 is a standard inverted-bucket steam trap used to automatically drain condensate from steam lines while preventing steam loss. It is suitable for industrial applications requiring reliable condensate removal at pressures up to 250 psi and temperatures up to 450°F.

What are the specifications of the SPENCE 81S-CSE9 steam trap?

The SPENCE 81S-CSE9 is a cast iron steam trap with a 1 in FNPT connection, rated for 760 lb/hr capacity, 250 psi maximum pressure, and 450°F maximum temperature. It has an in-line configuration for horizontal installation and includes a built-in strainer.

Where to buy the SPENCE 81S-CSE9 steam trap worldwide?

3G Electric supplies the SPENCE 81S-CSE9 steam trap to customers worldwide. We handle full logistics, customs clearance, and delivery to your location. Contact us for a quote and lead time on this SPENCE model.

How to install the SPENCE 81S-CSE9 steam trap?

Install the SPENCE 81S-CSE9 in a horizontal line with the inlet and outlet aligned in-line. Ensure the built-in strainer is oriented correctly to catch debris. Follow standard steam trap installation practices, including proper piping support and isolation valves for maintenance.

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

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.

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Cross-referenced by specification & description
Steam Trap: Cast Iron, 1 1/4 in FNPT, 5,700 lb/hr, 250 psi Max., 450°F Max., Strainer Not Included (MPN 84-CSF9)
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Steam Trap: Cast Iron, 1 1/4 in FNPT, 5,700 lb/hr, 250 psi Max., 450°F Max., Strainer Not Included (MPN 84-CSF9)
Steam Trap: Cast Iron, 1 1/4 in FNPT, 6,500 lb/hr, 15 psi Max., 450°F Max., Strainer Not Included (MPN 84-C1F9)
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Steam Trap: Cast Iron, 1 1/4 in FNPT, 6,500 lb/hr, 15 psi Max., 450°F Max., Strainer Not Included (MPN 84-C1F9)
Steam Trap: Cast Iron, 1 1/2 in FNPT, 10,000 lb/hr, 15 psi Max., 450°F Max., Strainer Not Included (MPN 85-C1G9)
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Steam Trap: Cast Iron, 1 1/2 in FNPT, 10,000 lb/hr, 15 psi Max., 450°F Max., Strainer Not Included (MPN 85-C1G9)
Steam Trap: Cast Iron, 1 1/2 in FNPT, 10,400 lb/hr, 100 psi Max., 450°F Max., Strainer Not Included (MPN 85-C0G9)
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Steam Trap: Cast Iron, 1 1/2 in FNPT, 10,400 lb/hr, 100 psi Max., 450°F Max., Strainer Not Included (MPN 85-C0G9)
Steam Trap: Cast Iron, 1/2 in FNPT, 760 lb/hr, 250 psi Max., 450°F Max., Strainer Included (MPN 81S-CSC9)
SPENCE
Steam Trap: Cast Iron, 1/2 in FNPT, 760 lb/hr, 250 psi Max., 450°F Max., Strainer Included (MPN 81S-CSC9)
Steam Trap: Cast Iron, 1/2 in FNPT, 680 lb/hr, 125 psi Max., 450°F Max., Strainer Included (MPN 80S-C9C9)
SPENCE
Steam Trap: Cast Iron, 1/2 in FNPT, 680 lb/hr, 125 psi Max., 450°F Max., Strainer Included (MPN 80S-C9C9)

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Steam Trap: Cast Iron, 3/4 in FNPT, 760 lb/hr, 250 psi Max., 450°F Max., Strainer Included (MPN 81S-CSD9)
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Steam Trap: Cast Iron, 3/4 in FNPT, 760 lb/hr, 250 psi Max., 450°F Max., Strainer Included (MPN 81S-CSD9)
Steam Trap: Cast Iron, 1 in FNPT, 1,000 lb/hr, 30 psi Max., 450°F Max., Strainer Included (MPN 81S-C4E9)
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Steam Trap: Cast Iron, 1 in FNPT, 1,000 lb/hr, 30 psi Max., 450°F Max., Strainer Included (MPN 81S-C4E9)
Steam Trap: Cast Iron, 2 in FNPT, 10,000 lb/hr, 15 psi Max., 450°F Max., Strainer Not Included (MPN 85-C1H9)
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Steam Trap: Cast Iron, 2 in FNPT, 10,000 lb/hr, 15 psi Max., 450°F Max., Strainer Not Included (MPN 85-C1H9)
Steam Trap: Cast Iron, 1 1/4 in FNPT, 6,700 lb/hr, 125 psi Max., 450°F Max., Strainer Not Included (MPN 84-C9F9)
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Steam Trap: Cast Iron, 1 1/4 in FNPT, 6,700 lb/hr, 125 psi Max., 450°F Max., Strainer Not Included (MPN 84-C9F9)
Steam Trap: Cast Iron, 3/4 in FNPT, 690 lb/hr, 20 psi Max., 450°F Max., Strainer Included (MPN 80S-C2D9)
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Steam Trap: Cast Iron, 3/4 in FNPT, 690 lb/hr, 20 psi Max., 450°F Max., Strainer Included (MPN 80S-C2D9)