Walther Subsea Control System
Subsea Quick Couplings
Walther subsea control system underwater couplings are designed and manufactured to meet the rigorous demands of the offshore industry, supplying both mono and multi coupling systems for platform and underwater use. For underwater operation, Walther subsea coupling designs have been modified for easier diver handling. ROV operated couplings have been also been developed for shallow and deep water environments. Walther quick connect coupling systems ensure fast, safe connection and separation of control system lines on topside and subsea structures.
Design features:
- Clean-break during connection and separation
- Nominal bore sizes ranging from 2mm - 200mm
- Low pressure models up to 580psi
- High pressure models up to 15,000psi
- Robust materials including stainless steel, Monel, Super Duplex, Hastelloy,
- Highly reliable seal configurations using NBR, HNBR, FPM, FFKM, PEEK and metal
- Cam action or pull-in action locking design features on multicoupling systems
- A range of special features including non-interchangeability and pressured line connectability
Walther subsea control system couplings are distinguishable by the "coupling actuator" to include: stab plate, cartridge, and ROV multi and couplings. Coupling specifics can be found by following the links.
| Stab Plate | |||||
|---|---|---|---|---|---|
| Series | End fitting range | Working pressure psi | Cv | Features | Click on picture to enlarge |
| MD | varies | -- | -- | General purpose Medium Pressure couplings. Also available for plate mounting & sub-sea use. | na |
| HP | varies | -- | -- | General purpose High Pressure couplings. Also for plate mounting, esp. for subsea use. Very robust, esp. with RV option. |  Series HP |
| OE | varies | -- | -- | -- | na |
| OM | varies | 7,500-10,000 | -- | Available in 6mm, 10mm, 16mm | na |
| 64 | varies | 12,500 | -- | Available in two versions. | -- |
| Cartridge | ||||||
|---|---|---|---|---|---|---|
| Series | End fitting range | Working pressure psi | Cv | Features | Click on picture to enlarge | |
| 84 | 1-1/4" & 1-1/2" | 12,500 | 0.65 | Cartridge mount, metal primary, elastomeric secondary seals. Primarily for subsea trees. |  Series 84 |
Details |
| Diver Couplings | ||||||
|---|---|---|---|---|---|---|
| Series | End fitting range | Working pressure psi | Cv | Features | Click on picture to enlarge | |
| SH | 3/8" - 3/4" | 7,500 to 10,000 | 1.2 | High pressure, screw-together with some versions using a metal primary seal. A "coding" system prevents accidental media line misconnections. |  Series SH |
Details |
| ROV: multi couplings | |||||
|---|---|---|---|---|---|
| Series | End fitting range | Working pressure psi | Cv | Features | Click on picture to enlarge |
| ROV: mono couplings | |||||
|---|---|---|---|---|---|
| Series | End fitting range | Working pressure psi | Cv | Features | Click on picture to enlarge |
| 87 | Simple ROV operation, |  Series 87 |
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Offshore Coupling Options
- 87-G50 Series: Gas Lift Applications
- Series 87: ROV Operated High Pressure Coupling (10-15k psi)
- Series OM: Stabplate Elements Deep Water Applications
- Series OM: Stabplate Elements Shallow Water Applications
- Series SH-Y44/45: High Pressure Screw Type Coupling
- HFL Systems, Type 91561
- Intelligent Dual Hot Stab IDHS, Type 95727
- High-Pressure Coupling Type XO-006 - Uncoupled
- High-Pressure Coupling Type XO-006 – Coupled