Overview
TianKang HongJi QFF3 Three Valve Manifold made by Hongji Instrument& Valve Manufacturing Co., Ltd. combine several valves in one body with multiple connections. This equipment supports pressure instruments—including pressure gauges, transmitters, and differential pressure transmitters—by directly or indirectly enabling accurate measurement and equalization of process pressures, whether static, gauge, or differential. It performs these functions through controlled bleeding, blocking, and calibration operations within instrumentation lines.
Technical Specifications
| Type |
QFF3 Type |
Net Weight |
1.5 kg |
| Body Material |
316L,Alloy |
Manufacturing Capacity |
1800 pics/Month |
| Type of Connection |
Thread |
Warranty |
1 year |
| Seal Type |
Hard Sealing |
Manufacturing |
Forging and CNC |
| Packing |
PTFE/Graphite |
Pressure Range |
6000Psi-10000Psi (414Bar-690Bar) |
| Media |
Liquid,Gas,Steam,Oil |
Inlet/outlet |
1/2 NPT, 1/2 BSPP, M20*1.5 |
| Connection |
Pressure Transmitter |
Orifice: |
0.157(4.0 mm) |
| Graphite |
-65°F to 1200°F (-54℃ to 649℃) |
PTFE |
-65°F to 450°F (-54℃ to 232℃) |
Applications
- In the Oil & Gas sector, they enable accurate pressure measurement, secure isolation of high-pressure lines, and safe calibration of transmitters during drilling and refining operations. Chemical and Petrochemical Plants depend on them for precise process monitoring, allowing safe equalization and isolation during reactor and distillation control.
- Within Power Generation, manifolds support reliable instrumentation by managing the measurement and isolation of steam and water pressure in boilers and turbines. In Pharmaceutical and Biotechnology processes, they ensure sterile and contamination-free fluid control by providing clean isolation and controlled venting during maintenance and validation.
- For Water Treatment, valve manifolds regulate and monitor pressure across filtration and distribution systems, ensuring stability and efficiency. In HVAC applications, they simplify system isolation, aid in pressure balancing, and enhance maintenance safety for refrigerant and chilled-water circuits. Meanwhile, Laboratories and Research Facilities rely on them for precise differential pressure measurement, calibration, and controlled fluid routing in analytical or testing setups.
- Their capability to isolate, equalize, and vent pressure instruments safely and accurately makes valve manifolds indispensable for maintaining operational safety, measurement accuracy, and system reliability in any process environment.
Ordering Number Description
Notes:
- Standard manifold instrument is flange (according to MSS SP-99), flange distance (center-to-center) is 2.13 (54 mm).
Distance of 2.19 (55.6 mm) suitable for transmitters of range 6, 7 and 1151.
Distance of 2.25 (57.2 mm) transmitters of range 8 and 1151.
- Ordering Number Indication illustrates the classification and combination of Hongji products, which can not be randomly combined.
- For those valves made of other type of material other than listed ,please contact the Hongji sales personnel.
- If an oxygen-dedicated valve manifold is required, include “O2” in the basic order number, for example:HJ2V-MNPT8-FNPT8-H-P-SS-O2
Customization & Technical Support
• E-Mail: overseasales@tiankang.com
Sales Support:
• E-Mail: sales06@tiankanginternational.com
