About Us
Engineering capability. Proficient manufacturing.
RANGER is a high-quality supplier of application-specific valve products, engineered to meet or exceed performance standards and configured on time-tested field experience to serve a wide array of industries and applications. RANGER is a partnership of rigorous engineering and proficient manufacturing, delivering and servicing its valve products around the globe — we succeed only when our customers and partners succeed, and work to improve the efficiency and economics of valve procurement.
Since 2018, the RANGER brand has represented the valve products manufactured by Fangzheng Valve Group Co., Ltd. (FZV) in the US, and North America.
A family operated company, FZV has manufactured valves in Wenzhou, Zhejiang Province, China, since 1992, and today operates two facilities with a combined 76,000 m² of production area and approximately 622 employees. With over $1 billion USD of valves installed globally, and with approximately 20% in North America, FZV continues to drive quality, economy, and trust in the market. Ranger-FZV's foundation is quality and is API Q1 certified (since 2013), ISO 9001:2015 (ISO 9001 first in 1998), ISO 14001 (since 2003), and OHSAS 18001 registered, and hold API monogram licenses for API 6A (since 2007), 6D (since 2000), 594 (since 2019), 600 (since 2006), 602 (since 2019), 608, and 609 (since 2019) products.
1983
FZV founded
2
Manufacturing facilities
76,000 m²
Combined production area
~622
Employees
$1B+ USD
Valves installed globally
Since 1983
Four decades of manufacturing history
1983
FZV founded
1992
Plant 1 opens in Wenzhou
2000
First API 6D registration
2005
Plant 2 opens
2006
First API 600 registration
2007
API Q1 & API 6A registration
2011
Plant 1 expands and relocates
2012
New headquarters opens
2018
RANGER brand launches in the US
2019
API 602, 594 & 609 registration
Consistent Quality — Process & Design
The foundation for RANGER-FZV's valve capability lies in its process consistency to meet statutory and regulatory requirements, and its drive to ensure complete customer satisfaction, improve project economics, extend valve service life, eliminate fugitive emissions, and ensure safe operation. Key processes include:
Qualified personnel through training and certification
Rigorous selection, ongoing testing, and auditing of sub-suppliers and vendors
Detailed quality process framework, including ISO 9001:2015 and API Q1 certification
Advanced traceability through online documentation support, encompassing MTRs
ISO 14001:2015 Environmental Management System
Certified & Registered
RANGER believes that adherence to industry standards, and the registration, certification, and scrutiny applied by governing bodies, provides a foundation for continual improvement and growth. Many of the products carry the API Monogram, highlighting conformance to API specifications under a quality management system compliant with API Q1.
| Product Group | Design Standard | Size Range | Class Range |
|---|---|---|---|
| Ball valves — floating, trunnion, twin-ball, fully welded | API 6D | 1/2" – 60" | 150 – 2500 |
| Slab & expanding gate valves; check valves (pipeline) | API 6D | 1/2" – 60" | 150 – 2500 |
| Gate valves — cast steel | API 600 | 1/2" – 60" | 150 – 2500 |
| Check valves — swing, nozzle, dual door | API 594 | 1/2" – 60" | 150 – 2500 |
| Forged gate, globe, check valves | API 602 | 1/2" – 2-1/2" | 150 – 4500 |
| Butterfly valves — double & triple offset | API 609 | 1/2" – 60" | 150 – 600 |
| Ball valves — floating, trunnion | API 608 | 1/2" – 24" | 150 – 600 |
| Cryogenic valves — gate, globe, check, ball, TOV | Per base standard | 1/2" – 60" | 150 – 1500 |
| Threaded / socket-weld ball & compact valves | ASME B16.34 | 1/2" – 2-1/2" | 800 – 2500 |
In addition to certification, API registration requires an annual audit and a substantive renewal application every three years. RANGER also carries end-user, engineering community, and major distributor audit approvals.
What We Build
A focused range of application-specific valves, for a broad range of industries
Cast Steel Valves
Cast steel gate, globe, and check valves built for the US heavy industrial market.
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API 6D Ball Valves
Floating, trunnion, double block and bleed, top entry, and fully welded ball valves for oil and gas.
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API 6D Gate Valves
Through-conduit slab and expanding gate valves for positive shut-off.
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API 609 Butterfly Valves
Zero-leakage triple-offset butterfly valves (TOVs).
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Specialty Gate Valves
Pressure seal bonnet gate valves for high-pressure, high-temperature service.
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Specialty Globe Valves
Bellows seal, pressure seal, and Y-type globe valve designs.
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Specialty Check Valves
Swing, dual door wafer, nozzle, and pressure seal check valve designs.
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Cryogenic Valves
Gate, globe, ball, and butterfly valves for LNG and extreme low-temperature service.
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API 602 Forged Steel
Small forged gate, globe, check, angle, and bellows seal valves.
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Threaded & Socket Weld Ball Valves
Threaded and socket weld ball valves to ASME B16.34.
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API 6A Valves
Wellhead and Christmas tree valves: gate, globe, check, ball, and choke.
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Factory Actuation
RANGER can provide a wide range of actuation options from the factory, including manual gear operators, as well as pneumatic, hydraulic, or electric actuators.
Field & Time Tested
RANGER represents products that are both field and time tested, with ongoing input from a large installed base of global and North American end-users, engineering teams, and distribution agents — driving continuous improvements in service life and product performance.
Safe, Reliable Operations
The health, safety, and environmental impact of the manufacturing process is top of mind for RANGER. The production facility is ISO 14001:2015 certified and follows a strict process to ensure environmental sustainability, including the API 624 emission standard for gate and globe valves.
Service, Reliability & Support
From engineering to procurement, major project or field support, RANGER aims to deliver valve ownership value second to none in the industry, underpinned by its systems and a culture of exemplary service.
24/48 Warranty
RANGER offers an industry-leading warranty on all of its valves. RANGER-FZV's ISO program ensures a non-conformance and corrective action process that provides a timely and documented resolution.
RANGER-FZV specializes in API 6D, API 600, API 594, API 6A, and API 16C, and wellhead equipment, and produces a range of specialty valves including cryogenic, through-conduit gate, pressure seal, and many others.
Local partners, a dedicated technical response team, repair & modification, industry-leading traceability, and RANGER's Advanced Expediting Program — see the full picture on Service & Support.
View Service & Support →Production Capabilities
Built for expedient lead times
In addition to its focus on quality, RANGER-FZV recognizes the importance of expedient lead times, and has developed a large stock of component parts for quick turnarounds.
Workshops
Two manufacturing facilities with a combined 820,000 sq ft of building area, and an annual capacity of just over 32,000 tons per year.
Machining
CNC machines with machining size up to 56", numerical control boring and drilling machines, and vertical numerical control lathes for sizes up to 60".
Forming
Investment casting, sand casting, forging (closed die, open die, and ring rolled), and machining from solid.
Welding & Cladding
SMAW, SAW, GMAW, GTAW, plasma, weld overlay, and hard facing — all performed in-house, with welders and procedures qualified to ASME Section IX. No welding is subcontracted.
Heat Treatment
In-house electric resistance furnaces for normalizing, tempering, quenching, and annealing, with thermocouple-controlled recording and furnace capacity to 1,200°C.
Assembly & Testing
A dust-free assembly facility and a cryogenic test lab support a wide range of in-house testing throughout the manufacturing cycle.
Laboratory & Testing
A dust-free clean room dedicated to oxygen and cryogenic service assembly, plus an in-house mechanical testing lab (tensile, Charpy impact, hardness, OES spectroscopy, and metallography) and hydrostatic, pneumatic, cryogenic, and high-temperature pressure test capability.
Coating & Packing
Grit blast, ultrasonic clean, and primer/intermediate/finish coating in-house, with galvanizing, phosphating, and PTFE coating available. Export packing in heat-treated, seaworthy wooden crates is performed on premises.
Warehouse
A stock of component parts is kept on hand to improve lead times on popular valve configurations.
Health & Safety
Safety is a priority, and it shows
RANGER-FZV takes pride in having a safe workplace for employees, suppliers, and visitors, and has a solid history of providing a safe and injury-free workplace. All RANGER-FZV employees are expected to conduct their work in a professional manner, keep their work sites clean, and comply with health and safety guidelines.
- Emergency Preparation
- HSE Management Committee
- Environmental Aspects and Impacts
- OH&S Program
- Proactive Risk Assessment
- Non-Conformance Reporting
- Hazard Identification
- Effective Control Actions
- Records Management