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RANCO RSG-3S Brass Sweat Connection Sight Glass, 4 11/16 in Lg - Sweat Connection Sight Glasses
RANCOSweat Connection Sight Glasses

RANCO RSG-3S Brass Sweat Connection Sight Glass, 4 11/16 in Lg

The RANCO Sight Glass, model RSG-3S, is a brass sweat connection sight glass with a length of 4 11/16 inches. This industrial component is designed for visual fluid monitoring in piping systems.

SKU 3G-OTH-71770

Also listed as: RSG3S · RSG 3S

Brand
RANCO
Item
RSG-3S Brass Sweat Connection Sight Glass, 4 11/16 in Lg
Category
Sweat Connection Sight Glasses
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Technical Specifications

RANCO
Manufacturer Part Number
RSG-3S
Material
Brass

Technical Documents

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

Product Description

The RANCO Sight Glass, model RSG-3S, is a brass sweat connection sight glass with a length of 4 11/16 inches. This industrial component is designed for visual fluid monitoring in piping systems.

Frequently Asked Questions

What is the RANCO RSG-3S sight glass used for?

The RANCO RSG-3S sight glass is used for visual fluid monitoring in industrial piping systems. Its brass construction and sweat connection design make it suitable for refrigeration, HVAC, and process lines where operators need to observe flow, color, or clarity of liquids or gases.

What are the specifications of the RANCO RSG-3S sight glass?

The RANCO RSG-3S is a brass sight glass with a length of 4 11/16 inches. It features a sweat connection for brazed installation. The manufacturer part number is RSG-3S, and the material is brass, providing corrosion resistance and durability in industrial fluid monitoring applications.

Where to buy the RANCO RSG-3S sight glass worldwide?

3G Electric supplies the RANCO RSG-3S sight glass worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this brass sweat connection sight glass.

How to install a RANCO RSG-3S sweat connection sight glass?

Install the RANCO RSG-3S by brazing the sweat connections into copper piping. Ensure the system is depressurized and clean. Apply heat evenly to the fitting, then insert the sight glass. Allow to cool naturally. Follow standard brazing practices for brass components to avoid thermal stress.

Used in

Common applications for RANCO
Commercial refrigeration — RANCO A12-1506 constant differential defrost control for walk-in freezer defrost cycles
HVAC system protection — RANCO RHS-250150 high-limit pressure switch for overpressure safety in chillers
Industrial cooling — RANCO O12-1506 dual pressure control for monitoring suction and discharge pressures in refrigeration racks
Food storage — RANCO O10-1408 temperature control for maintaining -15°F to 40°F in cold storage rooms
Compressor protection — RANCO P30-3701 mechanical lube oil pressure control for Danfoss compressors in supermarket refrigeration
Refrigerant filtration — RANCO RBFD-163 liquid line filter drier for moisture removal in HCFC systems up to 50 tons

RANCO Products

3G Electric supplies RANCO sweat connection sight glasses. 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
This sweat connection refrigeration ball valve features a 1 5/8 in female sweat connection and is A2L compatible. It has no access port or relief port and operates within a temperature range of -40°F to 250°F. Used in HVAC and refrigeration systems for isolating refrigerant flow
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This sweat connection refrigeration ball valve features a 1 5/8 in female sweat connection and is A2L compatible. It has no access port or relief port and operates within a temperature range of -40°F to 250°F. Used in HVAC and refrigeration systems for isolating refrigerant flow
This sweat connection refrigeration ball valve features a 2 5/8 in female sweat connection and includes an access port. It has no relief port and is A2L compatible. The valve operates within a temperature range of -40°F to 250°F. Typical applications include flow control in HVAC and refrigeration systems
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This sweat connection refrigeration ball valve features a 2 5/8 in female sweat connection and includes an access port. It has no relief port and is A2L compatible. The valve operates within a temperature range of -40°F to 250°F. Typical applications include flow control in HVAC and refrigeration systems
RANCO Ball Valves: 400.7 Cv, 2 5/8 in Female Sweat, No Access Port, No Relief Port, -40°F to 250°F (MPN RBV-258)
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RANCO Ball Valves: 400.7 Cv, 2 5/8 in Female Sweat, No Access Port, No Relief Port, -40°F to 250°F (MPN RBV-258)
This sweat connection refrigeration ball valve from RANCO features a 1 3/8 in female sweat connection and an access port. It has no relief port and is A2L compatible. With an operating temperature range of -40°F to 250°F, it is suitable for controlling refrigerant flow in HVAC and refrigeration systems
RANCO
This sweat connection refrigeration ball valve from RANCO features a 1 3/8 in female sweat connection and an access port. It has no relief port and is A2L compatible. With an operating temperature range of -40°F to 250°F, it is suitable for controlling refrigerant flow in HVAC and refrigeration systems
This refrigeration ball valve features a 1/4 in female sweat connection for brazed installation in HVAC and refrigeration systems. It has a flow coefficient of 1.9 Cv, operates from -40°F to 250°F, and is A2L compatible. The valve does not include an access port or relief port, making it suitable for isolating refrigerant flow in commercial and industrial applications
RANCO
This refrigeration ball valve features a 1/4 in female sweat connection for brazed installation in HVAC and refrigeration systems. It has a flow coefficient of 1.9 Cv, operates from -40°F to 250°F, and is A2L compatible. The valve does not include an access port or relief port, making it suitable for isolating refrigerant flow in commercial and industrial applications
This refrigeration ball valve features 7/8 in female sweat connections for brazed installation. It operates within a temperature range of -40°F to 250°F and is A2L compatible for use with low-flammability refrigerants. The valve has no access port and no relief port, providing a straightforward shut-off function in HVAC and commercial refrigeration systems
RANCO
This refrigeration ball valve features 7/8 in female sweat connections for brazed installation. It operates within a temperature range of -40°F to 250°F and is A2L compatible for use with low-flammability refrigerants. The valve has no access port and no relief port, providing a straightforward shut-off function in HVAC and commercial refrigeration systems

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Brass sight glass with sweat connection for copper pipe installation. Allows visual inspection of fluid flow, color, and clarity in piping systems. Used in HVAC, refrigeration, and process lines for system diagnostics
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