Hydraulic test points and hoses only

Hydraulic Test Fittings for Cranes

Q: Does M16 × 2 identify the machine port?

Not necessarily. ISO 15171-2:2016 describes an M16 × 2 diagnostic coupling interface, while the stud end on the machine side may follow another defined port family.

Q: Can a hydraulic test point be connected while the crane is operating?

Only the crane OEM procedure and qualified person can define the permitted state, connection method and danger-zone controls. ISO 15171-2 includes connection-under-pressure scope for its coupling, but that scope is not an operating instruction or a TIME product rating.

Q: Which pressure values belong in the enquiry?

Send normal operating pressure, permitted peak and any known transient or pulsating condition. Keep those crane duty values separate from the fitting drawing and the hose assembly’s working, proof, burst and impulse evidence.

Q: How is a mobile crane test hose length selected?

Measure the full route from the test point to a safe gauge position, including articulation and service access. Add the bend, abrasion, heat and clamp conditions rather than ordering a longer hose only for convenience.

Q: Which gauge range should be used for hydraulic pressure testing?

Select the gauge from the expected diagnostic band, required resolution, accuracy class and calibration status. A gauge that merely covers the maximum pressure can still be a poor measuring and display device for a low-pressure pilot circuit.

Q: Which body and seal materials suit outdoor cranes?

Provide the exact fluid, temperature range, corrosion exposure, washdown condition and storage interval. TIME then reviews carbon steel or stainless steel body options and the available NBR, FKM or EPDM seal context against the current model data.

Q: What is the minimum order for crane pressure test points?

The standard catalogue fitting minimum order is 100 pieces. Custom test hose assemblies are quoted from the drawing, length, end configuration and requested quantity.

Q: How long does bulk production take?

Bulk production runs 10–30 working days after the drawing, order inputs and commercial terms are confirmed. The quotation records the actual production scope and trade term.

Q: Which documents should be requested before release?

Request the current drawing revision, material and seal declaration, inspection/test scope, traceability fields and written warranty terms. If a certificate is part of the approval, verify the issuer, certificate number, scope and validity.

Bulk production in 10–30 working days EXW, FOB, CIF or CFR

Port-photo and drawing review

Process Requirements

Verify the crane’s actual diagnostic node, port geometry and sealing method before choosing a fitting.
Specify the test hose from steady pressure, transients, fluid, temperature and movement—not from reach alone.
Bind the pressure gauge, hose assembly and test point to one measurement objective and one written approval pack.

TIME Hydraulic reviews crane hydraulic test fittings as a measurement chain: machine port, diagnostic coupling, mobile crane test hose, gauge connection and proof documents. Send a port photo, OEM hydraulic drawing or existing part marking, and we will return a selection basis for the current TIME drawing.

A part number is confirmed only after the machine-side port and test-side connection are separated in the review.

Request Crane Fitting Selection Support See Required Selection Data

Specifications

Product scope: Hydraulic test points and test hoses
Bulk production: 10–30 working days
Standard fitting MOQ: 100 pieces
Custom hose quantity: Set by assembly drawing and quotation
Payment: T/T 30% as deposit and T/T 70% before delivery
Trade terms: EXW, FOB, CIF and CFR

Crane Diagnostic Access Matrix

The matrix turns a partial request such as “M16 test point for a crane” into the inputs needed for a defensible selection. It does not replace the crane manufacturer’s hydraulic schematic, service procedure or authorization for the test condition.

ANALYZE NODE

STEP 01

Authorized diagnostic node

Identify the circuit function and OEM test location for boom, luffing, slew, winch, steering, outrigger or another hydraulic function. Record whether the procedure calls for a static reading, a controlled operating cycle or a comparison between points.

STEP 02

Machine-side port

Capture the thread designation, pitch, port form, sealing surface, spotface and available installation envelope. A nominal thread can appear correct while the stud end, O-ring housing, cone or flare is wrong.

Test-Side Diagnostic Coupling for Cranes

STEP 03

Test-side interface

Separate the installed stud or adapter from the diagnostic coupling used by the hose. ISO 15171-2:2016 gives scope for an M16 × 2 diagnostic coupling, but the standard does not prove a TIME model rating or a crane fit.

STEP 04

Measurement chain

For selection support, review custom hydraulic test hose assemblies when the specified connection family matches the drawing and operating conditions.

State the expected steady and transient pressure, fluid, temperature, gauge range, accuracy target and calibration status. The hose route must also account for articulation, abrasion, heat, sharp edges and technician access.

Operating-state boundary

Follow the crane OEM procedure, isolate stored energy where instructed and keep personnel outside suspended-load and movement danger zones. Crane inspection and hydraulic service decisions belong to qualified personnel; a diagnostic fitting does not authorize the operating condition.

Materials, Seals and Operating Environment

Material choice begins with the fluid and exposure at the actual crane location. The trade-off is specific: corrosion resistance, fluid compatibility, temperature and cost must be balanced at the installed position rather than treated as one universal material rule.

Fluid boundary: The published scope of ISO 15171-2:2016 addresses mineral-oil systems and places other fluids under agreement between supplier and purchaser. That is why the actual fluid designation belongs in every selection review.

Materials, Seals and Operating Environment for Hydraulic Systems

Carbon steel body

Use the current drawing to confirm the steel grade, surface treatment and corrosion expectation for protected or general industrial positions. Outdoor salt, washdown and chemical exposure may change the decision.

Stainless steel body

Specify the corrosion environment rather than asking only for “stainless.” The offered grade, mating material and sealing system must remain compatible with the fluid and port.

NBR sealing option

Provide the exact hydraulic fluid, additive package and minimum-to-maximum temperature band. Mineral-oil context alone is not enough when the crane uses a specialty or fire-resistant fluid.

FKM sealing option

Higher temperature resistance does not make an elastomer suitable for every medium. Selection still follows the named fluid, concentration, duty cycle and current seal data.

EPDM sealing option

EPDM requests require a fluid-specific review because common petroleum-based hydraulic oils can conflict with the material. Send the fluid manufacturer and product designation before the seal is fixed.

Protective cap & cleanliness

The cap, tether and storage practice protect the diagnostic interface between tests. Include the required cleanliness and contamination-control method in the maintenance procedure.

Environment data to send

Fluid name
Minimum temperature
Maximum temperature
Outdoor exposure
Salt or chemical contact
Vibration
Washdown
Storage interval

Send Environment Data

Connection Architecture for Crane Test Points

Crane test-point requests often combine the machine port, its installed adapter and the hose coupling in one description. The review identifies each interface separately so an adapter cannot conceal an unverified port match.

Interface family to identify	Evidence to send	Mismatch prevented
M16 × 2 (M16x2) diagnostic coupling or test nipple	Existing coupling photo, mating-hose end and current drawing	Confusing the diagnostic side with the machine stud end
Metric O-ring port	Thread, pitch, housing geometry, O-ring position and spotface	Matching pitch while missing the sealing architecture
BSPP port	G thread, seal form and port-seat detail	Assuming every parallel pipe thread seals the same way
NPT or NPTF port	Taper designation, engagement condition and OEM procedure	Substituting a parallel-thread adapter into a tapered port
JIC 37-degree flare	Tube or hose-end size, male/female side and flare condition	Treating thread engagement as proof of flare contact
ORFS face seal	Face geometry, O-ring size, tube end and clearance	Missing face damage or the wrong O-ring arrangement
DKO 24-degree cone	Cone type, tube series, swivel end and model drawing	Mixing a 24-degree cone with another metric connection
Gauge connector, adapter, tee or bulkhead	Installation envelope, load path, orientation and hose route	Creating a side load, collision point or inaccessible gauge

Thread-only selection is the trap because it creates a sealing risk even when the pitch appears to match. A matching pitch does nothing for sealing when the port housing or seat is wrong. A qualified review provides the standard fix: confirm against the OEM geometry, the current TIME drawing and the relevant ISO 1179 or ISO 6149 port family.

ISO 1179 and ISO 6149 port families pair nominal threads with defined port housings, stud ends and seals. That is why TIME asks for the drawing or geometry around the thread rather than selecting from “BSP,” “metric” or “SAE” alone.

Selection Data and Evidence Requirements

ISO 9110-1:2020 provides measurement-principles context for hydraulic fluid power. Replace the table’s example formats with values from the crane manual, the installed component and the intended measurement method.

Send a Port Photo or Hydraulic Drawing

Selection field

Required order input

Crane and circuit identity

1 equipment class, model/serial context and 1 named hydraulic function
Port evidence

2 clear views plus 1 dimensioned OEM or service drawing where available
Thread and seal

4 fields: diameter × pitch, male/female side, seal form and port depth in mm
Pressure duty

3 values where available: normal, permitted peak and transient/impulse condition, stated consistently in bar, MPa or psi
Temperature duty

2 endpoints: minimum and maximum fluid/ambient temperatures in °C or °F
Hose route

4 inputs: required length in mm, bend points, motion envelope and protected clamp locations
Measurement objective

4 inputs: expected pressure band, gauge range, accuracy class and calibration date
Proof package

4 items: current drawing revision, material/seal declaration, inspection scope and warranty wording

Interactive selection tools

Crane Diagnostic Access Matrix
For selection support, review angled pressure gauge connector options when the specified connection family matches the drawing and operating conditions.

Organize the OEM node, machine port, test-side connection and measurement objective before requesting a part number.
Pressure Evidence Checker

Separate working, proof, burst and impulse evidence and flag the fields that still need a current assembly record.
Mobile Crane Test Hose Route Planner

Review length, movement, bend, abrasion, heat and technician access without creating an operating instruction.
Crane Fitting RFQ Input Checker

Build a clean enquiry pack with port evidence, fluid, pressure, hose and document requirements.

Pricing, Lead Time and Order Terms

Price follows the fitting or hose assembly, connection geometry, body and seal material, pressure evidence, quantity, hose length, end configuration and document scope. TIME returns the exact figure in a written quotation tied to the selected drawing.

Pricing and Order Terms for Hydraulic Fittings

Cost drivers in a crane diagnostic assembly

Driver	Effect on the quotation	Input that controls it
Machine-side connection	Stud geometry and sealing method set the adapter route	Port drawing, dimensions and seal form
Body and seal material	Corrosion, fluid and temperature requirements change materials	Named fluid and exposure band
Hose assembly	Length, ends, protection and pressure evidence set assembly scope	Route sketch and duty values
Quantity and model mix	Setup and inspection are distributed across the order	Quantity per part number and reorder plan
Documentation	Drawing, traceability and test-report scope change the release pack	Written acceptance checklist

Commercial Terms and Lead-Time Start Point

Bulk production runs 10–30 working days after the order inputs and drawing are confirmed.
The standard catalogue fitting minimum order is 100 pieces; custom hose assemblies are quoted to the requested configuration and quantity.
Payment is T/T 30% as deposit and T/T 70% before delivery.
TIME quotes EXW, FOB, CIF and CFR trade terms.

Request TIME Drawings and Support

The production clock starts after the selected drawing, quantity, commercial term and acceptance scope are confirmed. A port question or a late hose-end change returns the order to drawing review because it changes the item being released.

SPECIFICATION // TRACEABILITY

Inspection, Traceability and Approval Pack

Quality review must connect a physical item to the drawing and requirement that govern it. A standard name, certificate logo or catalogue statement is not a substitute for the selected model’s inspection and test record.

Define the Approval Pack →

Inspection Traceability and Approval Pack

We manufacture only hydraulic test points and test hoses.
Our range covers cone-seal, zero-leakage designs.
We carry out 100% inspection before release.
We provide a 3-year quality warranty.
We supply a full range of models.
We operate a 5,000 m² production facility, with new workshops under development.

Drawing identity

Part number, revision, dimensions, machine-side connection and test-side interface.

Material identity

Body material, surface treatment, seal material and declared fluid/temperature basis.

Inspection and test scope

Characteristics checked, sampling or 100% scope where agreed, acceptance criteria and report format.

Commercial remedy

Written warranty period, exclusions, traceability expectation and response if the supplied item misses the agreed criteria.

Management-system certificate

Confirm the issuing body, certificate number, scope and validity for the operating company. A management-system certificate describes the certified system; it is not a pressure rating for a fitting.

Product and assembly record

Match the report to the offered part number, drawing revision and acceptance method. ISO 6605:2017 supplies test-method context for hydraulic hoses and hose assemblies, not automatic compliance for an unlinked product.

Evidence objects to request

Current fitting or hose-assembly drawing
Material, coating and elastomer declaration
Inspection plan and released inspection record
Working pressure, pressure-test and impulse-test records where required by the application
Lot or batch traceability fields
Written warranty scope and remedy

Impulse duty changes the evidence question

ISO 6803:2017 covers impulse testing for hydraulic hose assemblies exposed to pulsating service. Ask whether the offered assembly has an applicable record; do not convert the standard’s test categories into the crane’s operating limit.

How We Work: TIME Selection Review

STEP 01

Send the crane context

— share the model, circuit function, OEM hydraulic schematic or service instruction and intended diagnostic condition.

STEP 02

Identify the machine port

— provide photos, dimensions, thread/pitch and sealing geometry from the installed connection.

STEP 03

Define the measurement

— state normal and peak pressure, transient duty, fluid, temperature, gauge range and calibration status.

STEP 04

Route the test hose

— mark length, bends, articulation, abrasion, heat, clamp points and the technician’s gauge position.

STEP 05

Review the current drawing

— TIME maps the inputs to a current fitting and hose drawing and resolves open interface questions before release.

STEP 06

Fix the order pack

— the quotation records quantity, production term, payment, trade term, inspection scope, traceability and warranty wording.

Drawing notes that prevent rework

Drawing note	What to state	Why it matters
Port and seal	Thread, pitch, housing, cone/flare/face and elastomer	Stops a thread-only substitution
Pressure basis	Normal, peak and transient/impulse condition	Separates operating duty from catalogue shorthand
Hose route	Finished length, moving points, bend and protection	Prevents pull, rubbing and inaccessible gauge placement
Measurement basis	Gauge range, accuracy class, calibration and reading objective	Keeps the reading useful, not merely contained
Acceptance pack	Drawing revision, report, traceability and warranty scope	Gives procurement one release basis

Build the RFQ input list with the interactive checker.

Limits of a Crane
Test-Fitting Selection

A test point and hose make measurement access possible; they do not determine the crane repair, prove the circuit is safe to energize or correct a poor measurement plan. Treating access hardware as the diagnosis is the wrong choice; the component decision stays inside the OEM procedure.

HSENI guidance for vehicle hydraulic systems reinforces stored-energy and maintenance controls. The crane manufacturer’s service procedure and qualified personnel still govern the diagnostic condition.

Situation

Why the fitting is not the answer

Next action

The diagnostic node is unknown

A convenient port may not represent the pressure needed for the fault check

Use the OEM schematic and service procedure to identify the node

The thread is known but the seal is not

Thread engagement can occur without the correct sealing contact

Measure the port housing and send a section drawing or clear close-ups

The hose crosses a moving or hot zone

Reach alone does not control abrasion, pull, bend or heat exposure

Change the gauge position, route or protected length before selecting the assembly

The pressure is highly pulsating

A static rating does not establish impulse performance

Request an applicable assembly record and review the measurement dynamics

The gauge range is poorly matched

The connection may hold pressure while the reading lacks useful resolution

Select the measuring device from the expected band and accuracy objective

Hydraulic Test Fitting Engineering Tools

crane diagnostic access matrix

Determine the optimal placement for test points across mobile crane hydraulic circuits. Map access points for diagnostic efficiency.

pressure evidence checker

Validate system pressure ratings and ensure compliance with ISO safety parameters. Generate standardized diagnostic reports.

test hose route planner

Calculate exact hose lengths and routing configurations to avoid abrasion and pressure drops during field testing.

input checker

Verify RFQ parameters and operational variables before initiating custom test fitting and hose assembly production.

Crane Hydraulic Test Fitting FAQs

Which hydraulic test fitting matches my crane?

Start with the OEM diagnostic node, then identify the machine-side port and seal from a drawing or measured geometry. Crane brand and nominal thread alone do not establish a match; TIME confirms a part number against the current drawing.