How long is an HYSF price quotation valid for?

Our standard price quotation validity is 30 days. However, for projects involving volatile raw materials (such as large quantities of Titanium or Marine Bronze), the validity might be shorter (e.g., 15 days). Please confirm the validity date stated on your official Proforma Invoice.

We strive to keep prices stable, but material costs drive the market.

Raw Materials: Subsea connectors use high-grade metals whose global market prices can fluctuate.
Project Planning: If you are bidding for a long-term tender (e.g., a 6-month government contract), please let us know so we can discuss a price-lock mechanism or a frame agreement to secure your budget.

John Zhang

(CEO & Lead Engineer)
Email: info@hysfsubsea.com
With over 15 years of expertise in subsea interconnect technology, I lead HYSF's R&D team in designing high-pressure (60MPa) solutions. My focus is on ensuring zero-leakage reliability for ROVs, AUVs, and offshore instrumentation. I personally oversee the validation of our custom connector prototypes.

Have a complex technical question?

Proven Solutions in the Field

A showcase of our successful collaborations with global marine robotics, energy, and research partners. Every project reflects our commitment to zero-leak integrity and operational reliability.

Right Angle Molded Micro Bulkhead Connector (LPMBH-IL12/16MF Compatible)

70MPa Ultra-High Pressure Metal 61-Pin Subsea Connector

Single-Pin High-Current (150A) Subsea Power Connector

All-New Next-Generation Subsea IP Network Camera Series

Custom High-Intensity Subsea LED Light & Mounting Bracket System

RMG Series 4-Pin Subsea Engineering Cable Plug

Custom 1-to-3 Fan-out Subsea Splitter Cable System

Micro Flange 3-Pin Subsea Bulkhead Connector (IL4MF Compatible)

Custom Molded Subsea Penetrator with Integrated Multi-Core Cable

Gigabit Ethernet 12-Pin Subsea Connector (4 Power + 8 Network)

HYSF-140A-180A-high-current-underwater-power-connector-for-thrusters

Integrated Subsea Interconnect & Imaging Solutions

High-Frequency Subsea Coaxial RF Connector Assembly (50-3 / 50-5)

High-Performance Photoelectric Hybrid Subsea Connector

MCPBOF2-8MF Oil-Filled Pressure Compensated Connector (8-Pin)

Custom Miniature Single-Core In-Line Watertight Connector

Custom Branching Subsea Cable Network (Tree Topology)

HYSF-custom-6-pin-40A-underwater-power-distribution-connector

5MP High-Definition Underwater Observation Camera (40MPa)

Custom Retractable Subsea Spiral Coiled Cable (Spring Cable)

Custom 6-Pin / 40A Medium-Power Subsea Connector

10-Pin Ethernet Subsea Connector (2 Power + 8 Network Cores)

Custom Subsea Bulkhead Flange Joint Connector

Miniature Subsea Watertight Connector (Marine Bronze Base)

5MP High-Definition Underwater Camera (40MPa / 316L Stainless Steel)

Custom Branching Subsea Cable Network (Y-Splitter & Multi-Node)

60MPa Metal Shell Bulkhead Connector with Triple Seal (4-61 Pins)

PBOF Series Pressure-Balanced Oil-Filled Subsea Connectors

Custom 6-Port Watertight Enclosure & Subsea Interconnect System

HYSF-high-density-25-pin-subsea-signal-connector-for-oceanographic-sensors

Multi-Core Split-Type Watertight Connector (Diverse Configurations)

50MPa High-Precision Subsea Pressure Sensor

Custom 6-Port Watertight Enclosure & Subsea Interconnect System

MCBH-Hybrid 4+2 Photoelectric Subsea Connector (Power & Fiber Optic)

60MPa High-Pressure Metal Shell Watertight Connector (4-61 Pins)

High-Strength Titanium Alloy Subsea Penetrator

Ultra-Miniature Subsea Watertight Connector Series (2-28 Pins)

Start Your Subsea Project with HYSF

Whether you need a quick quote for standard connectors or a complex custom cable assembly, our engineering team is ready to assist. Expect a technical response within 12 hours.