SOLUFORCE® RLP Reinforced Thermoplastic Pipe SOLUFORCE® RLP is a new product offering from Soluforce’s proven line of high pressure pipe systems for oil and gas field use known as SOLUFORCE® RTP. Connection System Soluforce RLP midline couplings and weld neck fittings Get information about our Soluforce RLP Connection System. Installation Equipment certification and training Certification and training of third party crews is available and encouraged. Also equipment leasing and purchase is available. Contact We would be pleased to give you more detailled information about our products. Please contact. Download At our download area you can download our brochures, data sheets.