SHENGFEI is a professional manufacturer of high-performance butterfly valves, with product quality comparable to BRAY and FLOWSEAL.
Each butterfly valve we produce undergoes 100% inspection and testing before leaving the factory. All our products achieve bi-directional, equal-pressure zero leakage, and feature replaceable seats, which greatly saves costs for customers and facilitates maintenance.
All products are defaulted to provide 3.1 EN 10204 material certificates. If other certificates are required, we will quote separately and cooperate with third-party inspection.
Our factory holds ISO9001 and API607 certificates, and is currently applying for API609 and CE certificates.
The pressure testing includes hydrostatic testing ( water testing )and pneumatic testing ( air testing ). Please feel free to watch the video links below for our hydrostatic and pneumatic tests.
Air test pressure from downstream:
Air test pressure from upstream:
Hydro test pressure from downstream:
Hydro test pressure from upstream:
The product specifications,pictures and technical data from the video for your reference.
Double Offset Fire – Safe High – Performance Butterfly Valve 6” 150LB – LUG
Body : ASTM A216 WCB, Disc: ASTM A351 CF8M, Stem: 17 – 4PH, Bushing: SS316 bonded to Dupont PTFE (combines metal strength + PTFE lubricity), Stem Seal: Flexible Graphite Rings (high-temperature sealing),Seat Assembly: RPTFE + SS316 (RPTFE for sealing + stainless steel for support).
Design Standard: API 609/API 607,Applicable Standard: API 598, The shell hydro test is 450Psi, the upstream/downstream seat hydro test is 330Psi, and the air test is 100Psi.
We are committed to providing high-quality valve products for mid-to-high-end customers and can customize them according to your specific working conditions.
Please provide your detailed working condition information so that we can tailor the most suitable valve solution for you. We look forward to cooperating with you.
SHANDONG SHENGFEI MACHINERY CO., LTD
Web：https://shengfeimachinery.com
Email:sales@shengfeimachinery.com