The TYCO CV-1F is a compact, rugged swing check valve that allows flow in one direction and prevents it in the other. A resilient elastomer facing on the spring-loaded clapper gives a leak-tight, non-sticking seal, and the design minimises water hammer from flow reversal. See grooved joints vs welding.
In short
- Sizes: 2″ – 12″ (DN50 – DN300).
- Max. pressure 300 psi (20.7 bar) UL/FM, 16 bar VdS.
- Grooved ends for GRINNELL couplings or Figure 71 flange adapters.
- Removable cover for field maintenance.
- Approvals: UL, C-UL, FM (2″ – 12″), VdS (2½” – 10″).
How the valve works
Flow in the right direction opens the clapper against its spring; when flow stops or reverses, the spring closes it on the seat to prevent backflow.
A maintenance kit allows backflushing through a fire department connection without removing the valve from the riser (TFP1555).
Technical data
| Item | Value |
|---|---|
| Type | Spring-loaded swing check |
| Sizes | 2″ – 12″ (DN50 – DN300) |
| Max. pressure | UL/FM 300 psi · VdS 16 bar |
| Materials | Ductile iron body and cover, EPDM clapper facing |
| Finish | Red, non-lead paint |
| Approvals | UL · C-UL · FM · VdS |
The critical point: orientation
The arrow on the body points in the flow direction. Vertical installations flow upward; horizontal installations have the cover facing up. Never remove any piping component before depressurising and draining the system.
Installation steps
- Point the cast arrow on the body in the direction of flow.
- For vertical installation, flow must be upward.
- For horizontal installation, the cover faces up.
- Fit the grooved couplings or flange adapters per their manufacturer.
Common mistakes
- Installing against the arrow.
- Installing vertically with downward flow.
- Removing a piping component while the system is pressurised.
Inspection and maintenance
Before closing a main control valve for maintenance, obtain permission from the proper authorities and notify everyone affected. The owner is responsible for inspection, testing and maintenance to NFPA 25 and the authority having jurisdiction; any impairment must be corrected immediately.
Inspection, testing and maintenance are recommended by a qualified inspection service; any impairment is corrected immediately.
Files and ordering
TYCO datasheet TFP1550 and the available approval certificates are in the files section of this page. When ordering, state the size. The datasheet lists the part numbers (P/N).
How to order
Use the “Build your order” section on this page: add every model and quantity, then send the whole order by email or WhatsApp. It reaches us as a tidy PDF request sheet and we contact you with the quotation.
FAQ
Can it be installed horizontally?
Yes, with the cover facing up.
Can it be serviced without removal?
The cover is removable for service, and a kit allows backflushing without removing the valve.
Why a spring-loaded clapper?
It closes quickly when flow stops, minimising water hammer.
References
- TYCO TFP1550 — Datasheet (attached)
- NFPA 25 — Inspection, Testing and Maintenance of Water-Based Fire Protection Systems
This page is general information to help with selection and ordering, taken from the attached TYCO datasheet. Final design is set by the project’s approved designer; the project specification, the consultant’s drawings and the latest datasheet revision govern.
