Subsea BOP PU Seal Ring Line in China

Subsea BOP Polyurethane Seal Ring Line Project in China

PU Seal-Ring Casting project reference: Material preparation, metering, mixing, tooling and curing for the specified seal-ring formulation and geometry.

Project Reference and Configuration

Illustration notice. Process illustrations are not verified photographs of this installation.

Project reference basis. Figures and configuration details are reported in the supplied project brief. They are reference values for the stated application, rather than verified acceptance results or a guarantee for another installation. Confirm the source records, material, tooling, operating schedule and test method when assessing a comparable project.

This project reference describes material preparation, metering, mixing, tooling and curing for the specified seal-ring formulation and geometry.

Configuration and numerical values are reproduced from the supplied project brief for discussion. Original production, inspection and acceptance records have not been verified; these values do not establish certification or performance for another configuration.

Equipment References in the Project Brief

The supplied brief lists the following equipment references. Model identities, quantities and the actual delivery scope follow the original equipment schedule.

1. Hyper-Vacuum CPU Casting Unit: Primary 0.01 kPa falling-film degassing and magnetically coupled metering.
2. Zero-Spike Dynamic Mixing Head: Self-balancing low-pressure head eliminating pressure surges and startup voids.
3. High-Purity Nitrogen Shielding Skid: Maintains positive 99.999% dry nitrogen blankets across all fluid lines.
4. Step-Down Annealing Oil Tank: Controlled thermal oil immersion tank relieving internal crystalline stresses.

Installation, training, warranty and service arrangements follow the project agreement; durations in this brief are references.

Equipment	Model	Qty	Function
Hyper-Vacuum CPU Casting Unit	HF-CPU100-HV	1 set	Primary 0.01 kPa falling-film degassing and magnetically coupled metering.
Zero-Spike Dynamic Mixing Head	HF-ZSH-01	1 unit	Self-balancing low-pressure head eliminating pressure surges and startup voids.
High-Purity Nitrogen Shielding Skid	HF-N2-HP	1 unit	Maintains positive 99.999% dry nitrogen blankets across all fluid lines.
Step-Down Annealing Oil Tank	HF-SOT-100	1 set	Controlled thermal oil immersion tank relieving internal crystalline stresses.

Project Reference Values

100% reported sample

Reference: Ultrasonic-Inspection

Project-brief reference; original records pending. The brief lists 200 seals passing inspection and mentions 50 MHz/20 µm detection. Original method, calibration and reports are pending; no absolute absence of internal defects is asserted.

30 MPa

Reference: Gas-Decompression Test

Project-brief reference; original records pending. The brief lists ten cycles at 30 MPa. Confirm gas mix, temperature, pressure-release schedule and specimen reports. This reference is not a machine or finished-seal qualification.

±0.15 g

Reference: Shot-Weight

Project-brief reference; original records pending. The brief lists total-shot variation on fifty 4,500 g shots. Confirm the measurement definition, scale and data. A mass variation in grams is distinct from percentage ratio accuracy.

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