We ship worldwide — Singapore, Australia, Malaysia, Indonesia, Philippines, India, Middle East & more

MCDONNELL & MILLER Level Pressure Control: 157S-RB-MD Mfr Part # - Replacement HVACR Pumps, Valves & Tubing
MCDONNELLReplacement HVACR Pumps, Valves & Tubing

MCDONNELL & MILLER Level Pressure Control: 157S-RB-MD Mfr Part #

MCDONNELL Replacement HVACR Pumps, Valves & Tubing. Specifications: Product Type: Level Control.

SKU 3G-OTH-83629

Also listed as: 157SRBMD · 157S RB MD

Brand
MCDONNELL
Item
& MILLER Level Pressure Control: 157S-RB-MD Mfr Part #
Category
Replacement HVACR Pumps, Valves & Tubing
Available to Order
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

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

MCDONNELL
Manufacturer Part Number
157S-RB-MD
Product Type
Level Control

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

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

Product Description

MCDONNELL Replacement HVACR Pumps, Valves & Tubing. Specifications: Product Type: Level Control.

Frequently Asked Questions

What is the MCDONNELL & MILLER 157S-RB-MD level control used for?

The MCDONNELL & MILLER 157S-RB-MD is a level control used in HVAC and boiler systems to monitor and regulate water or liquid levels. It helps prevent low-water conditions that can damage equipment, ensuring safe and efficient operation in commercial and industrial heating applications.

What are the specifications of the MCDONNELL & MILLER 157S-RB-MD level control?

The MCDONNELL & MILLER 157S-RB-MD is a level control with manufacturer part number 157S-RB-MD. It is designed for use in HVACR systems as a replacement component. For detailed technical specifications such as pressure ratings or electrical requirements, consult the product datasheet or contact 3G Electric.

Where to buy the MCDONNELL & MILLER 157S-RB-MD level control worldwide?

You can source the MCDONNELL & MILLER 157S-RB-MD level control through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this replacement HVACR component.

How to install the MCDONNELL & MILLER 157S-RB-MD level control?

Install the MCDONNELL & MILLER 157S-RB-MD level control by first isolating power and draining the system. Mount the control per manufacturer guidelines, ensuring proper alignment with the liquid level. Connect wiring according to the schematic, then test for correct operation before returning the system to service.

Used in

Common applications for MCDONNELL
Steam boiler low-water cutoff — McDonnell & Miller 61 level control
Condensate receiver level monitoring — McDonnell & Miller RS-4-BR-1 4-level sensor
HVACR pump suction filtration — McDonnell & Miller 340700 strainer basket assembly
Flow switch head replacement — McDonnell & Miller 63-HD head mechanism
Boiler control circuit safety — McDonnell & Miller 7-BM electrical switch with manual reset
Field servicing of flow switches — McDonnell & Miller 310452 cartridge kit

MCDONNELL Products

3G Electric supplies MCDONNELL replacement hvacr pumps, valves & tubing. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

You might also need

Pump Accessories Valves & Regulation Motors & Drives All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
MCDONNELL & MILLER Level Control: 193-A-7B Mfr Part #
MCDONNELL
MCDONNELL & MILLER Level Control: 193-A-7B Mfr Part #
MCDONNELL & MILLER Level Control: 193-7B Mfr Part #
MCDONNELL
MCDONNELL & MILLER Level Control: 193-7B Mfr Part #
MCDONNELL & MILLER Level Control: 193-B Mfr Part #
MCDONNELL
MCDONNELL & MILLER Level Control: 193-B Mfr Part #
MCDONNELL & MILLER Level Control: 193-A Mfr Part #
MCDONNELL
MCDONNELL & MILLER Level Control: 193-A Mfr Part #
MCDONNELL & MILLER Level Control, Manrest Snap: 157S-M Mfr Part #
MCDONNELL
MCDONNELL & MILLER Level Control, Manrest Snap: 157S-M Mfr Part #
MCDONNELL & MILLER Level Control Switch: 194-7B Mfr Part #
MCDONNELL
MCDONNELL & MILLER Level Control Switch: 194-7B Mfr Part #

More from MCDONNELL

View all MCDONNELL parts
MCDONNELL & MILLER Level Control: 63-M Mfr Part #
MCDONNELL
MCDONNELL & MILLER Level Control: 63-M Mfr Part #
MCDONNELL & MILLER Water Feeder: 51-S-HD Mfr Part #
MCDONNELL
MCDONNELL & MILLER Water Feeder: 51-S-HD Mfr Part #
MCDONNELL & MILLER Level Control Float Block: 64-B Mfr Part #
MCDONNELL
MCDONNELL & MILLER Level Control Float Block: 64-B Mfr Part #
MCDONNELL & MILLER Level Control Tapping: 63-B Mfr Part #
MCDONNELL
MCDONNELL & MILLER Level Control Tapping: 63-B Mfr Part #
MCDONNELL & MILLER Level Control: 157S-RBP-MD Mfr Part #
MCDONNELL
MCDONNELL & MILLER Level Control: 157S-RBP-MD Mfr Part #
MCDONNELL & MILLER Cartridge: 310453 Mfr Part #
MCDONNELL
MCDONNELL & MILLER Cartridge: 310453 Mfr Part #
MCDONNELL & MILLER Low Water Cut-Off, Pump Controller: 193 Mfr Part #
MCDONNELL
MCDONNELL & MILLER Low Water Cut-Off, Pump Controller: 193 Mfr Part #
MCDONNELL & MILLER Casting: 193-1 Mfr Part #
MCDONNELL
MCDONNELL & MILLER Casting: 193-1 Mfr Part #