Why Conval?Why Conval? WEB CATALOG
High Performance Valves
for the World’s Most Demanding Applications
When you buy a product you want it to work for a long time. At Conval we apply this philosophy to our high-pressure, high-temperature valves which are designed and built for extreme longevity. These are the industry’s most rugged, in-line repairable valves with the lowest lifecycle cost. As a leader in Severe Service, and specializing in extreme condition applications, all of our products exceed industry standards.
Ingenious Design... Superior Rugged Construction [ open / close ]
Ingenious Design… Superior Rugged Construction
Conval’s Valve line provides a modular solution to rising maintenance expenses. The cost of plant shutdown time to replace valves can be as much as or even exceed the cost of equipment.
Conval’s Valves are designed and built for extreme longevity. Features such as electroless nickel plated finish, complete material traceability of all wetted parts and yoke, instantly establish the quality of the Clampseal® Valve. The Clampseal® also has a pressure actuated backseat which provides maximum valve integrity by ensuring a positive internal stop for the valve stem and disc assembly. The actuated backseat extends packing life by securely isolating the packing from the pressure when the valve is fully open. Valves built forty years ago are still in service today.
The savings from using a Conval valve over the lifetime of a facility are substantial. Low acquisition cost is not nearly as important as low cost over the serviceable life of a valve. Maintaining a Conval valve is far easier and much less costly than replacing a competitor’s valve. Contact us today and we’ll help you get the best high-pressure, high-temperature valve for your needs.
In-line Renewability [ open / close ]
In-line Renewability
Conval Clampseal® and Camseal® Valves are much easier to renew than anything else on the market. Conval Clampseal® Valves have a secure, leak-proof bonnet which allows rapid access to valve trim for inspection and maintenance.
When inspection or servicing is required, Conval’s in-line renewable valves do not need to be cut out (as do most other welded-in valves). The result is the shortest downtime and lowest life-cycle costs in the industry. A complete service, including a reground seat, new packing or stem replacement can often be accomplished in less than thirty minutes.
Globe Valve Renewal vs. Replacement [ open / close ]
Globe Valve Renewal vs. Replacement
Repairing a globe valve involves reworking the disc and seat. Due to pipe preparation, welding, heat treating and X-ray requirements, competitor Butt Weld End valves require significantly longer change out times. The charts below exemplify the cost differences between renewing a Clampseal® Valve and replacing a competitor’s globe valve.
| RENEWING A CONVAL GLOBE VALVE |
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| Material | Tool Kit | * |
| Packing | $40.00 | |
| Subtotal | $40.00 | |
| Labor | Labor Rate/Hour | $100.00 |
| X Number of Hours | 2 | |
| X Number of Workers | 1 | |
| Subtotal | $200.00 | |
| Total Renewal Cost | $240.00 | |
| REPLACING A COMPETITOR’S GLOBE VALVE |
||
| Material | 2″, A105, Stop, Y-Globe, SW | $1,200.00 |
| Subtotal | $1,200.00 | |
| Labor | Labor Rate/Hour | $100.00 |
| X Number of Hours | 6 | |
| X Number of Workers | 2 | |
| Subtotal | $1,200.00 | |
| Total Renewal Cost | $2,400.00 | |
In the example above, the cost of renewing a Clampseal® Valve is just 10% of the cost of replacing it. Renewing the packing is less than 4% of the cost of materials to replace a globe valve. In addition to the savings listed above, there are intangible savings from shorter shutdown time, which is considerable given that the cost of plant shutdown often exceeds the cost of equipment.
Ball Valve Renewal vs. Replacement [ open / close ]
Ball Valve Renewal vs. Replacement
Conval’s Camseal® Ball Valves are also in-line renewable. The Camseal® Valve provides zero body, seat, and stem seal leakage. The body/bonnet joint is not subject to pipeline stresses. There is no in-line body bolting to loosen and fatigue. Reliable, accurate ball alignment is achieved due to the robust engagement between the one-piece stem and the ball. The unique Camseal® replacement cartridge design makes it possible to perform in-line renewal in thirty minutes.
| RENEWING A CONVAL BALL VALVE |
||
| Material | Tool Kit | * |
| Replacement Cartridge | $850.00 | |
| Subtotal | $850.00 | |
| Labor | Labor Rate/Hour | $100.00 |
| X Number of Hours | 0.5 | |
| X Number of Workers | 1 | |
| Subtotal | $50.00 | |
| Total Renewal Cost | $900.00 | |
| REPLACING A COMPETITOR’S BALL VALVE |
||
| Material | 2″, Carbon Steel WCB, SW | $1,930.00 |
| Subtotal | $1,930.00 | |
| Labor | Labor Rate/Hour | $100.00 |
| X Number of Hours | 6 | |
| X Number of Workers | 2 | |
| Subtotal | $1,200.00 | |
| Total Renewal Cost | $3,130.00 | |
In the example above, the cost of renewing a Camseal® Ball Valve is just 29% of the cost of replacing a competitor’s entire valve. Add to that the savings from shorter shutdown time, and it’s clear that Conval’s valves have the lowest lifetime cost in the industry.
*Conval Tool Kit may be rented at a charge; Tool Kit may also be purchased.