Plumbing Combination Air Valve Size Calculator
Screen actual combination air-valve matched admission/expulsion capacities separately, preserving no match; not one-direction vacuum breaker or vent type recommendation.
Description
Combination air valves need separate admission and expulsion capacities.
Combination air valves need separate admission and expulsion capacities. Adequacy in one direction does not establish adequacy in the other.1
The returned values include Caller bidirectionally compatible air valve ids. The How section below explains the calculation, input rules and interpretation.
When to use Plumbing Combination Air Valve Size Calculator
Use Plumbing Combination Air Valve Size Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. No vent-type recommendation, transient model or surge protection assurance is supplied.
Prepare measured flows, pressures, temperatures or inventories with consistent units. For catalog tools, use independently verified capacities at the stated operating conditions and supply the explicit design demand.
How to use Plumbing Combination Air Valve Size Calculator and understand its results
- Prepare measured flows, pressures, temperatures or inventories with consistent units. For catalog tools, use independently verified capacities at the stated operating conditions and supply the explicit design demand.
- Enter callerCombinationAirValveIds, callerMatchedAdmissionLitersSecond, callerMatchedExpulsionLitersSecond, callerRequiredAdmissionLitersSecond, callerRequiredExpulsionLitersSecond using the field table and calculation rules, then run the tool.
- Read callerBidirectionallyCompatibleAirValveIds. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| callerCombinationAirValveIds | Caller combination air valve ids | list of string | Required |
| callerMatchedAdmissionLitersSecond | Caller matched admission liters second | list of number | Required |
| callerMatchedExpulsionLitersSecond | Caller matched expulsion liters second | list of number | Required |
| callerRequiredAdmissionLitersSecond | Caller required admission liters second | number | Required |
| callerRequiredExpulsionLitersSecond | Caller required expulsion liters second | number | Required |
Enter aligned nonempty unique nonblank IDs and nonnegative directional capacities, plus nonnegative admission/expulsion demands. Return all jointly adequate IDs in order.
eligible=(admissionCapacity≥admissionDemand) and (expulsionCapacity≥expulsionDemand) Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| callerBidirectionallyCompatibleAirValveIds | Caller bidirectionally compatible air valve ids | list of string |
{
"input": {
"callerCombinationAirValveIds": [
"a",
"b"
],
"callerMatchedAdmissionLitersSecond": [
10,
20
],
"callerMatchedExpulsionLitersSecond": [
20,
10
],
"callerRequiredAdmissionLitersSecond": 15,
"callerRequiredExpulsionLitersSecond": 15
},
"output": {
"callerBidirectionallyCompatibleAirValveIds": []
}
}Limitations and assumptions
No vent-type recommendation, transient model or surge protection assurance is supplied.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Plumbing Vacuum Breaker Size Calculator: Vacuum-breaker sizing needs air-admission capacity at matched conditions. A capacity catalog can screen candidates against a stated demand. For a complementary task, use Plumbing Hydronic Air Separator Size Calculator: Air-separator screening needs adequate flow and verified removal performance under matched conditions. Both criteria must pass.
References
Similar or alternative tools
- Plumbing Vacuum Breaker Size Calculator
Vacuum-breaker sizing needs air-admission capacity at matched conditions. A capacity catalog can screen candidates against a stated demand.
- Plumbing Hydronic Air Separator Size Calculator
Air-separator screening needs adequate flow and verified removal performance under matched conditions. Both criteria must pass.