Predictika · Fluid system components

An AI sales agent's instrumentation ball valve order, checked before it goes out

An AI sales agent prepares an order for a 40G series one-piece instrumentation ball valve for a sample line or an instrument panel: the series and end connection, straight or angle pattern, packing, operating temperature and pressure, handle, locking bracket and vent, and the flow coefficient and rated pressure it states. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the public Swagelok catalog (MS-02-331) and returns a verdict, every reason and the figures it computed.

Scope: Swagelok 40G series stainless steel 2-way on-off ball valves (41G, 42G, 43G): the 20 catalog end-connection rows, pressure and temperature limits, packing, vent, handle and locking-bracket options. See everything this validator covers

This validator models an order for a Swagelok 40G series (41G, 42G or 43G) one-piece instrumentation ball valve in 316 stainless steel, 2-way on-off, straight or angle pattern, based on the public catalog MS-02-331 (Rev. P), not just the scenarios shown below.

  • Catalog rows — the series and end connection must be a row the catalog lists (20 rows across 41G, 42G and 43G: Swagelok tube fittings in fractional and metric sizes, female NPT and ISO tapered, male NPT, VCO and integral male VCR). An angle pattern is offered only where the catalog lists an angle flow coefficient. The flow coefficient (Cv) comes from the row.
  • Pressure and temperature — the valve is rated from -65 to 300 degrees F. The rated pressure is 2,500 psig for 41G and 42G and for angle patterns; for the 43G straight pattern it is 3,000 psig up to 150 degrees F, 2,800 at 200, 2,650 at 250 and 2,500 at 300. A vented valve, or one assembled without lubrication, is rated 500 psig. UHMWPE packing is limited to 150 degrees F, and special cleaning (SC-11) changes the low-temperature rating to -30 degrees F.
  • Options — the vent port and its smaller-orifice designators (-040, -049), stem extensions (2, 4 or 6 inches), handle types and colors, latch-lock handles (43G only), and the locking bracket, which is offered only on straight-pattern valves with directional handles, not with VCO or VCR ends or panel mounting, and on 43G only up to 3/8 in. and 10 mm ends.
  • Stated figures and approvals — the flow coefficient and rated pressure the order states must equal the catalog figures for the configuration. A vented valve with no smaller-orifice designator goes to a person, because the catalog warns that cross-vent flow may occur.

Any 41G, 42G or 43G 2-way on-off valve order that touches these rules is in scope — not only the scenarios pictured here. Not covered: prices (Swagelok publishes none, so this page shows no price build-up), the brass, alloy 400, 44 and 45 series valves, 3-way and multi-way valves, actuators, the lower pressure ratings that Swagelok tube fitting ends can have because of the tubing, and anything the catalog leaves to the customer, such as material compatibility.

The AI sales agentSelects the valve from the conversation and says it is ready.
Predictika validatorChecks every rule at once and returns the verdict, each finding, and the computed figures.

7 scenarios in 3 groups · each group runs from the agent’s first attempt to the outcome · click one to switch

What the agent proposes

The AI sales agent says

Illustrative agent statement. The validator receives the structured request below.

Proposing agent: AI sales agent (scripted)

Before sending, the agent must call Recorded run

Predictika validator


      

        
        
        
      

      
Waiting for the call.

      
    

  

  
  

    
Where rules-based CPQ gets it wrong
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Our assessment of what a typical rules-based CPQ (product rules, price rules and validation rules, as in Salesforce CPQ) does with the same cases. It is a judgment about effort and reliability, not a claim that nothing can be built.

    
What the validator caughtTypical rules-based CPQPredictika
Only the series and end-connection rows the catalog lists (20 rows)Only with workarounds
Each series and end connection has its own flow coefficient, and not every combination exists; angle patterns exist for only some rows. A rules-based CPQ needs a compatibility table or a rule per row, and every catalog revision means editing them.		Series, end connection and pattern arrive in one request and are matched to the published rows on every call.
Rated pressure that falls with temperatureOnly with care
The 43G straight pattern drops from 3,000 to 2,500 psig as the temperature rises, while the other series do not. It needs a lookup by series, pattern and temperature, and a second rule for the 500 psig vent and no-lubrication limits.		The rating is computed from the request on every call and compared with both the working pressure and the pressure the order states.
Option interlocks on the locking bracketOnly with workarounds
The bracket depends on the pattern, the end connection, panel mounting, the handle and the end size. Each is a separate exclusion rule, usually spread across option groups.		Every combination is checked together, and each failure is named.
Every problem returned in one answerOnly with workarounds
Rules tend to fire as the order is saved or a step is completed, so a person often fixes one error and meets the next.		All findings come back together, whatever order the choices arrived in.

  

  

    
What this validator catches: findings from its test cases
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Every rule is checked on every call, in any order the choices arrive; one problem never hides another. Blocking findings stop the quote; approval findings need a person to sign off; everything else is computed.

    
1The catalog lists no 2-way on-off valve in the 41G series with 1/4 in. Swagelok tube fitting end connections.
2The catalog lists no angle-pattern version of the 43G series valve with 1/2 in. Swagelok tube fitting end connections.
3The working pressure of 2,501 psig is above the rated pressure of 2,500 psig for this valve as configured.
4The working pressure of 3,001 psig is above the rated pressure of 3,000 psig for this valve as configured.
5The operating temperature of 301 degrees F is above the 300 degrees F maximum for 40G series valves.
6The operating temperature of -66 degrees F is below the -65 degrees F minimum for 40G series valves.
7Special cleaning and packaging (SC-11) changes the low-temperature rating to -30 degrees F; the operating temperature of -31 degrees F is below it.
8UHMWPE packing is limited to 150 degrees F; the operating temperature is 151 degrees F.
9The working pressure of 501 psig is above the rated pressure of 500 psig for this valve as configured.
10The valve is vented without a smaller-orifice designator; the catalog warns that cross-vent flow may occur in vented valves, so a person should confirm it is acceptable.
11For 40G series valves the smaller-orifice designators are -040 and -049; 93 is not one of them.
12A smaller-orifice designator is for reducing cross-vent flow and applies only to a vented valve.
13Stem extensions come in standard lengths of 2, 4 and 6 inches; 3 inches is not a standard length.
14The catalog lists handle colors only for nylon directional and latch-lock handles.
15Latch-lock handles are offered on the 43G series; this is a 42G series valve.
16The locking bracket is offered only on 2-way straight-pattern valves; this valve has an angle pattern.
17The locking bracket cannot be used on valves with integral VCO or VCR fitting end connections.
18The locking bracket cannot be used with panel mounting.
19On 43G series valves the locking bracket is offered with Swagelok end connection sizes up to 3/8 in. and 10 mm; 1/2 in. is larger.
20The locking bracket is for valves with directional handles; this valve has a different handle.

  

  

    
Scenarios and results
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The recorded result of the validator for each scenario on this page: the request the AI agent sent, the verdict, and every finding, in the order they appear above.

    
1. Pressure at temperature: A 43G straight valve for a heated sample line

    
The agent's request. Please quote a 43G series 2-way on-off ball valve with 1/4 in. Swagelok tube fitting end connections, straight pattern, modified PTFE packing and a black nylon directional handle. It will see 3,000 psig at 250 degrees F. The quote states a flow coefficient (Cv) of 1.4. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Working pressure above the rating. The working pressure of 3,000 psig is above the rated pressure of 2,650 psig for this valve as configured.
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2. Pressure at temperature: The agent resubmits after fixing the errors

    
The agent's request. Please quote a 43G series 2-way on-off ball valve with 1/4 in. Swagelok tube fitting end connections, straight pattern, modified PTFE packing and a black nylon directional handle. It will see 2,600 psig at 250 degrees F. The quote states a flow coefficient (Cv) of 1.4 and a rated pressure of 2,650 psig. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Valve summary. 43G series 2-way on-off valve with 1/4 in. Swagelok tube fitting end connections, straight pattern, flow coefficient (Cv) of 1.4, rated 2,650 psig as configured.
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3. Locking bracket and handle: A 43G valve with a locking bracket on 1/2 in. ends and an oval handle

    
The agent's request. Please quote a 43G series 2-way on-off ball valve with 1/2 in. Swagelok tube fitting end connections, straight pattern, modified PTFE packing and a nylon oval handle. It will see 1,800 psig at 70 degrees F. Add the locking bracket. The quote states a flow coefficient (Cv) of 1.1 and a rated pressure of 3,000 psig. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • Locking bracket above 3/8 in. ends. On 43G series valves the locking bracket is offered with Swagelok end connection sizes up to 3/8 in. and 10 mm; 1/2 in. is larger.
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  • Locking bracket needs a directional handle. The locking bracket is for valves with directional handles; this valve has a different handle.
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4. Locking bracket and handle: The agent resubmits after fixing the errors

    
The agent's request. Please quote a 43G series 2-way on-off ball valve with 3/8 in. Swagelok tube fitting end connections, straight pattern, modified PTFE packing and a black nylon directional handle. It will see 1,800 psig at 70 degrees F. Add the locking bracket. The quote states a flow coefficient (Cv) of 1.5 and a rated pressure of 3,000 psig. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Valve summary. 43G series 2-way on-off valve with 3/8 in. Swagelok tube fitting end connections, straight pattern, flow coefficient (Cv) of 1.5, rated 3,000 psig as configured.
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5. Vented valve and packing: A 42G vented valve with VCO ends and UHMWPE packing at 200 degrees F

    
The agent's request. Please quote a 42G series 2-way on-off ball valve with 1/4 in. VCO end connections, straight pattern, UHMWPE packing and a black nylon directional handle. It will see 1,500 psig at 200 degrees F. The valve is vented. The quote states a flow coefficient (Cv) of 0.6. It is ready to send.

    
Verdict: Blocked.

    
    
      
  • UHMWPE packing above 150 F. UHMWPE packing is limited to 150 degrees F; the operating temperature is 200 degrees F.
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  • Working pressure above the rating. The working pressure of 1,500 psig is above the rated pressure of 500 psig for this valve as configured.
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  • Cross-vent flow possible. The valve is vented without a smaller-orifice designator; the catalog warns that cross-vent flow may occur in vented valves, so a person should confirm it is acceptable.
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6. Vented valve and packing: The agent resubmits after fixing the errors

    
The agent's request. Please quote a 42G series 2-way on-off ball valve with 1/4 in. VCO end connections, straight pattern, modified PTFE packing and a black nylon directional handle. It will see 450 psig at 200 degrees F. The valve is vented. The quote states a flow coefficient (Cv) of 0.6 and a rated pressure of 500 psig. It is ready to send.

    
Verdict: Needs approval.

    
    
      
  • Cross-vent flow possible. The valve is vented without a smaller-orifice designator; the catalog warns that cross-vent flow may occur in vented valves, so a person should confirm it is acceptable.
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  • Valve summary. 42G series 2-way on-off valve with 1/4 in. VCO end connections, straight pattern, flow coefficient (Cv) of 0.6, rated 500 psig as configured.
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7. Vented valve and packing: The agent resubmits after fixing the errors

    
The agent's request. Please quote a 42G series 2-way on-off ball valve with 1/4 in. VCO end connections, straight pattern, modified PTFE packing and a black nylon directional handle. It will see 450 psig at 200 degrees F. The valve is vented with the -049 smaller orifice. The quote states a flow coefficient (Cv) of 0.6 and a rated pressure of 500 psig. It is ready to send.

    
Verdict: Allowed.

    
    
      
  • Valve summary. 42G series 2-way on-off valve with 1/4 in. VCO end connections, straight pattern, flow coefficient (Cv) of 0.6, rated 500 psig as configured.
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Narration transcript
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The text of the narrated walkthrough, step by step.

    
    
      
  1. Welcome to a demo of Predictika's Validator. An AI sales agent prepares an order for a 40G series one-piece instrumentation ball valve for a sample line or an instrument panel: the series and end connection, straight or angle pattern, packing, and more. Before it goes out, the agent sends it to Predictika, which checks it against a declarative model of the public Swagelok catalog (MS-02-331) and returns a verdict, every reason and the figures it computed.
    2. 
      
  2. I will start with the first request by the agent.
    3. 
      
  3. The agent says. Please quote a 42G series 2-way on-off ball valve with 1/4 in. VCO end connections, straight pattern, UHMWPE packing and a black nylon directional handle. The rest of the request is on screen. The quote states a flow coefficient (Cv) of 0.6.
    4. 
      
  4. Before it goes out, the agent calls the validator.
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  5. Blocked, with two findings and one approval, all in one answer. UHMWPE packing is limited to 150 degrees F; the operating temperature is 200 degrees F. The working pressure of 1,500 psig is above the rated pressure of 500 psig for this valve as configured.
    6. 
      
  6. The validator returned two blocking findings and one approval in one answer. A check that reads one field at a time would pass most of this; it shows only when the choices in the quote are checked against each other.
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  7. What this shows: for rated pressure that falls with temperature, a rules-based CPQ is error-prone for this.
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  8. Now the agent resubmits.
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  9. The corrected request. It changes the packing to Modified PTFE and the working pressure to 450 psig. It sets the stated rated pressure as to 500 psig.
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  10. It calls the validator again.
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  11. Not blocked, but held for a person.
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  12. The two blocking findings are cleared; one approval remains for a person: cross-vent flow possible.
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  13. The agent resubmits once more.
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  14. The revised request. It changes the smaller-orifice designator to -049.
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  15. It calls the validator once more.
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  16. This time the validator clears it.
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  17. The earlier finding is cleared, and the validator's figure matches the quote.
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  18. Three problems caught in one call, fixed in two passes, and a clean quote. That is the value of Predictika's validator: catching mistakes before they reach the customer. Now you can try the other scenarios yourself.
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