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SPENCE Steam Trap: Cast Iron, 1 in FNPT, 1,060 lb/hr, 15 psi Max., 450°F Max. - Standard Inverted-Bucket Steam Traps
SPENCEStandard Inverted-Bucket Steam Traps

SPENCE Steam Trap: Cast Iron, 1 in FNPT, 1,060 lb/hr, 15 psi Max., 450°F Max.

The SPENCE 81S-C1E9 is a cast-iron standard inverted-bucket steam trap with a 1-inch FNPT connection, rated for 1,060 lb/hr capacity at a maximum pressure of 15 psi and a maximum temperature of 450°F. It features an…

SKU 3G-OTH-71439

Also listed as: 81SC1E9 · 81S C1E9

Brand
SPENCE
Item
Steam Trap: Cast Iron, 1 in FNPT, 1,060 lb/hr, 15 psi Max., 450°F Max.
Category
Standard Inverted-Bucket Steam Traps
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Local availability & support

Delivery
Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

SPENCE
Manufacturer Part Number
81S-C1E9
Type
1,060 lb/hr, Strainer Included
FNPT
1 in
Max.
15 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-C1E9 is a cast-iron standard inverted-bucket steam trap with a 1-inch FNPT connection, rated for 1,060 lb/hr capacity at a maximum pressure of 15 psi and a maximum temperature of 450°F. It features an in-line configuration for horizontal installation and includes a built-in strainer.

Frequently Asked Questions

What is the SPENCE 81S-C1E9 steam trap used for?

The SPENCE 81S-C1E9 is a cast-iron inverted-bucket steam trap used to discharge condensate from steam lines while preventing steam loss. It is ideal for low-pressure heating systems and process applications requiring reliable, energy-efficient condensate removal at pressures up to 15 psi and temperatures up to 450°F.

What are the specifications of the SPENCE 81S-C1E9 steam trap?

The SPENCE 81S-C1E9 is a cast-iron inverted-bucket steam trap with a 1-inch FNPT connection, rated for 1,060 lb/hr capacity at 15 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-C1E9 steam trap worldwide?

3G Electric supplies the SPENCE 81S-C1E9 steam trap worldwide. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time; we source and deliver this SPENCE model to any country.

How to install the SPENCE 81S-C1E9 steam trap?

Install the SPENCE 81S-C1E9 horizontally with the inlet and outlet aligned in-line. Ensure the trap is level and the strainer is accessible for cleaning. Use pipe sealant on the FNPT threads and follow standard steam-trap piping practices to avoid water hammer and ensure proper condensate drainage.

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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Compatible alternatives & equivalents

Cross-referenced by specification & description
Steam Trap: Cast Iron, 1 in FNPT, 950 lb/hr, 70 psi Max., 450°F Max., Strainer Included (MPN 81S-C7E9)
SPENCE
Steam Trap: Cast Iron, 1 in FNPT, 950 lb/hr, 70 psi Max., 450°F Max., Strainer Included (MPN 81S-C7E9)
Steam Trap: Cast Iron, 1 in FNPT, 950 lb/hr, 125 psi Max., 450°F Max., Strainer Included (MPN 81S-C9E9)
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Steam Trap: Cast Iron, 1 in FNPT, 950 lb/hr, 125 psi Max., 450°F Max., Strainer Included (MPN 81S-C9E9)
Steam Trap: Cast Iron, 3/4 in FNPT, 680 lb/hr, 125 psi Max., 450°F Max., Strainer Included (MPN 80S-C9D9)
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Steam Trap: Cast Iron, 3/4 in FNPT, 680 lb/hr, 125 psi Max., 450°F Max., Strainer Included (MPN 80S-C9D9)
Steam Trap: Cast Iron, 3/4 in FNPT, 690 lb/hr, 80 psi Max., 450°F Max., Strainer Included (MPN 80S-C8D9)
SPENCE
Steam Trap: Cast Iron, 3/4 in FNPT, 690 lb/hr, 80 psi Max., 450°F Max., Strainer Included (MPN 80S-C8D9)
Steam Trap: Cast Iron, 3/4 in FNPT, 570 lb/hr, 150 psi Max., 450°F Max., Strainer Included (MPN 80S-CND9)
SPENCE
Steam Trap: Cast Iron, 3/4 in FNPT, 570 lb/hr, 150 psi Max., 450°F Max., Strainer Included (MPN 80S-CND9)
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)
SPENCE
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 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, 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)
Steam Trap: Cast Iron, 2 in FNPT, 9,800 lb/hr, 225 psi Max., 450°F Max., Strainer Not Included (MPN 85S-CRH9)
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Steam Trap: Cast Iron, 2 in FNPT, 9,800 lb/hr, 225 psi Max., 450°F Max., Strainer Not Included (MPN 85S-CRH9)