Home / Products / Reciprocating Compressors / T-Series / T-Series 6-Cylinder Piston Compressor for Marine Equipment

Share to:

T-Series 6-Cylinder Piston Compressor for Marine Equipment

Name: T-Series 6-Cylinder Piston Compressor for Marine Equipment
Brand: Blait
Rating: 5.0 (25 reviews)

The T-Series L4 is a four-cylinder semi-hermetic piston refrigeration compressor engineered for environmental simulation test chambers and climate test equipment, and for commercial refrigeration, large cold storage plants and cold chain transportation. With a displacement range of 73.6–84.5 m³/h, the L4 line covers four models — BTF4H-15.3ZE / BTF4G-20.3ZE (73.6 m³/h, 4×φ70×55 mm) and BTF4H-25.3GE / BTF4G-30.3GE (84.5 m³/h, 4×φ75×55 mm) — with rated motor powers from 13.3 kW to 22 kW, delivering nominal refrigerating capacity up to 44.4 kW under R507A service conditions.

The L4 accepts R22, R404A and R507A refrigerants and operates at 50 Hz with suction temperatures up to 20°C, spanning evaporating temperatures from +7.5°C down to −45°C depending on model and refrigerant. Each unit is built around the 3rd-generation T-Series design: an optimized cast body with hardened cylinder bores, a re-profiled cylinder head that damps exhaust pulsation and lowers noise, a stronger valve plate for improved exhaust efficiency, upgraded bearings for better lubrication and reduced seizure risk, and a motor tuned for higher efficiency and greater overload tolerance. A thin-ring piston design further cuts internal friction loss.

Protection is complete as standard: discharge temperature sensing, oil pressure differential monitoring, magnetic oil filter, crankcase heater and 12-port connection layout keep installation clean and maintenance simple. The L4 is further reinforced by a China Classification Society (CCS) Type Approval certificate (No. ZG24PTB00058_01, valid to 2029-10-28) issued by CCS Zhejiang Branch, qualifying the L4 series for installation on domestic and ocean-going fishing vessels under the CCS Rules for Construction of Ocean-Going Steel Fishing Vessels (2021) and the Technical Rules for Statutory Inspection of Fishing Vessels (2019).

Availability:

Quantity:



Inquire Add to Basket 天猫购买

Model:
BTF6H-25.3Z / BTF6H-35.3G、BTF6G-30.3Z / BTF6G-40.3G、BTF6F-40.3Z / BTF6F-50.3G
Brand:
Blait

The T-Series L6 is the largest single-stage semi-hermetic piston refrigeration compressor in the Brilliant (Bolitai) T-Series line: six cylinders, displacements from 110.5 to 151.6 m³/h, nominal motor power from 28 to 50 HP, engineered for marine refrigeration plants and industrial process cooling systems — and equally at home in large cold-storage racks, cold-chain transport and commercial refrigeration. All six models are covered by China Classification Society (CCS) type approval for refrigerating machinery on domestic and ocean-going fishing vessels, which makes the L6 the default choice when a land-grade big six-cylinder machine has to go to sea.

Third-Generation Piston Design

The L6 carries the full 3rd-generation T-Series redesign:

New body — optimised structural design, high rigidity, hardened cylinder bores for extended wear life
New cylinder head — reduced discharge pulsation and lower operating noise
New valve plate — higher discharge efficiency and improved impact resistance
New bearings — better oil film, lower risk of shaft seizure
New motor — higher efficiency, stronger overload tolerance, wider operating envelope
New piston profile — reduced clearance volume, reed-type thinner piston rings for lower friction loss

Six Models, Two Bore Families, Two Temperature Classes

Model	Nominal motor	Displacement	Cylinders × bore × stroke	Class
BTF6H-25.3Z	28 HP / 20.5 kW	110.5 m³/h	6 × Ø70 × 55 mm	Z = medium-low temperature
BTF6H-35.3G	35 HP / 25.5 kW	110.5 m³/h	6 × Ø70 × 55 mm	G = medium-high temperature
BTF6G-30.3Z	34 HP / 25 kW	126.8 m³/h	6 × Ø75 × 55 mm	Z = medium-low temperature
BTF6G-40.3G	40 HP / 30 kW	126.8 m³/h	6 × Ø75 × 55 mm	G = medium-high temperature
BTF6F-40.3Z	44 HP / 32.3 kW	151.6 m³/h	6 × Ø82 × 55 mm	Z = medium-low temperature
BTF6F-50.3G	50 HP / 37 kW	151.6 m³/h	6 × Ø82 × 55 mm	G = medium-high temperature

Refrigerants: R22, R404A, R507A (suffix R = mineral-oil version for R22/R502; suffix E = ester-oil version for R134a/R404A/R407A/B/C and R507A).

Capacity control: unlike four-cylinder models (50/100 % two-step), the six-cylinder L6 offers 34 % / 67 % / 100 % three-step loading by the stop-suction principle — no hot-gas bypass, no suction-pressure control needed. Part-load capacity follows the load without wasting head, which is exactly what process-cooling duty cycles and vessel defrost schedules demand.

Lubrication & starting: forced oil-pump lubrication sized for sustained tilt and roll at sea; PW split-winding starting motor limits starting current (141–226 A start vs. 233–404 A locked rotor). Power supply 220–240 V Δ / 380–420 V Y, 3-phase, 50 Hz; 265–290 V Δ / 440–480 V Y, 3-phase, 60 Hz.

Why Buyers Choose the L6

One machine, six certified models — the whole CCS annex is on one certificate, so refit and fleet standardisation stay simple
Real three-step unloading (34/67/100 %) — matched to load swings in process cooling and to fishing-vessel defrost cycles
Wide published grid — R22 down to −40 °C evaporating, R404A/R507A down to −45 °C; deeper duty available with liquid injection per the application-limit diagrams
Forced-oil-pump lubrication + split-winding starting — marine-grade mechanical and electrical margins
Manufacturer-direct support — selection software access, genuine spares, and application review of every duty point before order placement

FAQS

Q1. How do I read the L6 model code, e.g. BTF6G-30.3ZE?

B = Brilliant (company code); T = T-Series; F = semi-hermetic piston; 6 = six cylinders; G = bore/stroke family (H = Ø70 mm, G = Ø75 mm, F = Ø82 mm); 30 = nominal motor power in HP; .3 = design serial; Z = medium-low temperature application (G = medium-high); E = ester-oil version for R134a/R404A/R407A/B/C/R507A (R = mineral-oil version for R22/R502). So BTF6G-30.3ZE is a 34 HP-class six-cylinder ester-oil machine for medium-low temperature duty on R404A/R507A.

Q2. How do I choose among the six models?

Send us the evaporating temperature, condensing temperature, refrigerant and heat load. We read Q₀ at your duty point from the performance tables (50 Hz, 20 °C suction gas, no liquid subcooling), check the point against the application-limit diagram with margin, and confirm the model — including whether the 34/67/100 % capacity-control option is needed. Never size from displacement alone.

Q3. Which refrigerants and oils go with which suffix?

Suffix R = mineral oil, for R22 and R502. Suffix E = ester oil, for R404A, R507A, R134a and R407A/B/C. Do not mix oil types between R- and E-machines, and never blend refrigeration oils of different brands or models.

Q4. What are the core size numbers?

Displacement 110.5 m³/h (BTF6H), 126.8 m³/h (BTF6G), 151.6 m³/h (BTF6F) at 50 Hz. Nominal motor power 28–50 HP (20.5–37 kW). Oil charge 4.75 L on all models. Weight 224–241 kg including oil. All six cylinders run Ø55 mm stroke.

Q5. Is the L6 approved for marine use?

Yes — all six models are listed on CCS type certificate ZG24PTB00058-01 (China Classification Society, Zhejiang Branch, issued 2024-10-29, valid to 2029-10-28) for refrigerating machinery on domestic and ocean-going fishing vessels, with nominal duty points −31.5/40.5 °C (Z-class) and −6.5/43.5 °C (G-class) on R507 at 1450 r/min, design pressure 3.2 MPa. For vessels above roughly 20 t in fish-hold service we match a C-type tilt-compensating oil sump so lubrication stays intact under sustained list. The approval covers the compressor itself, not the complete plant.

Q6. Can you give me the 60 Hz performance?

The catalogue publishes 50 Hz data. For 60 Hz, multiply Q₀ and Pe by the factor 1.2 shown in the catalogue; the maximum working current stays unchanged. For any duty off the published basis (60 Hz exact points, liquid subcooling, different suction temperature), use the Blait selection software — do not extrapolate by hand.

Q7. What part-load options exist?

Six-cylinder models support 34 % / 67 % / 100 % three-step capacity control by the stop-suction principle: cylinder banks are unloaded electrically, no hot-gas bypass and no suction-pressure controller required. This is the main functional advantage over the four-cylinder range (50/100 % two-step).

Q8. What protection and instrumentation comes standard?

Standard provisions on the 12-port layout: HP and LP connections, discharge-temperature sensor connector, electronic liquid-injection nozzle, oil fill/drain, magnetic oil-filter screw, oil-return to separator, 140 W crankcase heater, oil-pressure switch connections (+/−) and an electronic oil-pressure switch connector. Options: KRIWAN electronic oil-pressure differential switch, KRIWAN motor protection module, cylinder-head fan, temperature sensors, capacity-control solenoid.

Q9. What are the pipe connection sizes?

Suction line SL 54 mm (2 1/8") on every model. Discharge line DL 35 mm (1 3/8") on BTF6H-25.3Z, BTF6H-35.3G, BTF6G-30.3Z and BTF6G-40.3G; DL 42 mm (1 5/8") on BTF6F-40.3Z and BTF6F-50.3G.

Q10. How deep can the L6 go on evaporating temperature?

In the published grid: R22 Z-models to −40 °C, R404A/R507A models to −45 °C evaporating. The application-limit diagrams extend the envelope to −50 °C where the prescribed technical measures (additional cooling / electronic liquid injection, suction superheat limits) are applied. For R404A/R507A below −30 °C the exact Q₀/Pe must come from the Blait selection software. For continuous duty deeper than the single-stage envelope, step up to the T-Series two-stage range (42.3–101.1 m³/h, 12–30 HP) or the YBLG screw line.

2.1 Mechanical & Electrical Parameters (50 Hz)

Model	Nominal motor HP/kW	Displacement m³/h	Cylinders × Ø × stroke mm	Oil charge L	Max operating current A	Start / locked-rotor A	Crankcase heater W	Weight kg
BTF6H-25.3Z	28 / 20.5	110.5	6 × Ø70 × 55	4.75	53.2	141.0 / 233.0	140	224
BTF6H-35.3G	35 / 25.5	110.5	6 × Ø70 × 55	4.75	64.4	165.0 / 275.0	140	235
BTF6G-30.3Z	34 / 25	126.8	6 × Ø75 × 55	4.75	65.5	141.0 / 233.0	140	228
BTF6G-40.3G	40 / 30	126.8	6 × Ø75 × 55	4.75	73.9	219.0 / 362.0	140	238
BTF6F-40.3Z	44 / 32.3	151.6	6 × Ø82 × 55	4.75	83.2	219.0 / 362.0	140	238
BTF6F-50.3G	50 / 37	151.6	6 × Ø82 × 55	4.75	96.2	226.0 / 404.0	140	241

Lubrication: forced (oil-pump). Starting: PW split-winding motor. Supply: 220–240 V Δ / 380–420 V Y 3~/50 Hz; 265–290 V Δ / 440–480 V Y 3~/60 Hz.

2.2 Cooling Capacity Q₀ (kW) and Input Power Pe (kW) — R404A / R507A

Condensing temperature 30 °C

Model (suffix E) — evaporating °C →	0	−5	−10	−15	−20	−25	−30	−35	−40	−45
BTF6H-25.3ZE Qo	104.84	87.20	71.85	58.59	47.19	37.46	29.19	22.21	16.33	11.37
BTF6H-25.3ZE Pe	22.98	22.10	20.92	19.49	17.86	16.08	14.22	12.32	10.44	8.63
BTF6G-30.3ZE Qo	121.34	101.28	83.84	68.75	55.77	44.67	35.24	27.26	20.53	14.83
BTF6G-30.3ZE Pe	27.73	26.55	25.07	23.34	21.42	19.38	17.26	15.12	13.03	11.03
BTF6F-40.3ZE Qo	145.63	121.40	100.30	82.04	66.32	52.87	41.41	31.69	23.45	16.46
BTF6F-40.3ZE Pe	33.52	32.26	30.59	28.60	26.34	23.90	21.33	18.71	16.12	13.60
BTF6H-35.3GE Qo	104.42	86.52	71.03	57.70	46.30	36.60	28.38	21.43	15.55	–
BTF6H-35.3GE Pe	22.39	21.57	20.46	19.11	17.58	15.90	14.13	12.31	10.49	–
BTF6G-40.3GE Qo	119.00	98.72	81.17	66.06	53.12	42.11	32.78	24.89	18.21	–
BTF6G-40.3GE Pe	26.33	25.25	23.89	22.29	20.50	18.58	16.56	14.50	12.45	–
BTF6F-50.3GE Qo	144.44	119.98	98.82	80.60	65.01	51.74	40.49	30.69	22.89	–
BTF6F-50.3GE Pe	32.61	31.32	29.65	27.65	25.40	22.96	20.39	17.77	15.15	–

Condensing temperature 40 °C

Model (suffix E)	0	−5	−10	−15	−20	−25	−30	−35	−40	−45
BTF6H-25.3ZE Qo	89.71	74.25	60.81	49.21	39.27	30.82	23.70	17.74	12.77	8.65
BTF6H-25.3ZE Pe	27.05	25.50	23.69	21.68	19.52	17.27	14.98	12.70	10.49	8.40
BTF6G-30.3ZE Qo	103.83	86.43	71.28	58.18	46.93	37.34	29.22	22.38	16.64	11.83
BTF6G-30.3ZE Pe	32.68	30.75	28.57	26.20	23.69	21.12	18.52	15.97	13.52	11.23
BTF6F-40.3ZE Qo	124.45	103.48	85.20	69.36	55.73	44.06	34.13	25.72	18.61	12.58
BTF6F-40.3ZE Pe	39.06	36.92	34.43	31.67	28.71	25.62	22.47	19.33	16.27	13.35
BTF6H-35.3GE Qo	89.09	73.41	59.89	48.27	38.35	29.93	22.84	16.88	11.88	–
BTF6H-35.3GE Pe	26.19	24.76	23.09	21.21	19.19	17.06	14.88	12.68	10.53	–
BTF6G-40.3GE Qo	101.01	83.52	68.37	55.31	44.15	34.66	26.63	19.86	14.14	–
BTF6G-40.3GE Pe	30.46	28.75	26.79	24.64	22.34	19.93	17.47	15.00	12.58	–
BTF6F-50.3GE Qo	122.78	101.76	83.53	67.80	54.33	42.83	33.07	24.80	17.76	–
BTF6F-50.3GE Pe	37.83	35.67	33.19	30.44	27.49	24.40	21.25	18.09	15.01	–

Condensing temperature 50 °C

Model (suffix E)	0	−5	−10	−15	−20	−25	−30	−35	−40
BTF6H-25.3ZE Qo	74.04	60.94	49.54	39.70	31.30	24.19	18.24	13.31	9.26
BTF6H-25.3ZE Pe	30.63	28.41	25.99	23.41	20.74	18.03	15.32	12.68	10.16
BTF6G-30.3ZE Qo	85.75	71.13	58.38	47.35	37.89	29.85	23.06	17.38	12.65
BTF6G-30.3ZE Pe	37.31	34.61	31.71	28.69	25.59	22.48	19.40	16.43	13.61
BTF6F-40.3ZE Qo	102.40	84.85	69.52	56.21	44.75	34.95	26.62	19.58	13.64
BTF6F-40.3ZE Pe	43.80	40.81	37.53	34.05	30.42	26.72	23.01	19.38	15.88
BTF6H-35.3GE Qo	73.08	59.90	48.49	38.69	30.33	23.28	17.37	12.44	8.35
BTF6H-35.3GE Pe	29.48	27.46	25.23	22.84	20.34	17.78	15.20	12.64	10.17
BTF6G-40.3GE Qo	82.49	67.91	55.25	44.35	35.03	27.12	20.44	14.84	10.12
BTF6G-40.3GE Pe	34.12	31.78	29.23	26.52	23.69	20.80	17.90	15.02	12.22
BTF6F-50.3GE Qo	100.16	82.73	67.58	54.48	43.24	33.64	25.49	18.58	12.67
BTF6F-50.3GE Pe	42.18	39.19	35.93	32.45	28.83	25.14	21.43	17.77	14.24

2.3 Cooling Capacity Q₀ (kW) and Input Power Pe (kW) — R22

Condensing temperature 30 °C

Model (suffix R) — evaporating °C →	+12.5	+10	+7.5	+5	0	−5	−10	−15	−20	−25	−30	−35	−40
BTF6H-35.3GR Qo	154.45	141.44	129.31	118.00	97.68	80.14	65.05	52.15	41.16	31.84	23.96	–	–
BTF6H-35.3GR Pe	19.54	19.85	20.03	20.08	19.86	19.25	18.30	17.09	15.67	14.11	12.47	–	–
BTF6G-40.3GR Qo	177.08	162.13	148.19	135.20	111.85	91.69	74.35	59.52	46.90	36.20	27.15	–	–
BTF6G-40.3GR Pe	22.54	22.89	23.08	23.14	22.89	22.20	21.13	19.75	18.14	16.36	14.48	–	–
BTF6F-50.3GR Qo	213.11	195.19	178.48	162.90	134.89	110.68	89.84	72.00	56.79	43.86	32.90	–	–
BTF6F-50.3GR Pe	27.33	27.75	27.99	28.07	27.78	26.97	25.72	24.10	22.21	20.11	17.91	–	–
BTF6H-25.3ZR Qo	–	–	–	–	–	80.14	65.06	52.15	41.18	31.92	23.20	16.81	11.72
BTF6H-25.3ZR Pe	–	–	–	–	–	19.38	18.41	17.20	15.81	14.30	12.31	10.69	8.96
BTF6G-30.3ZR Qo	–	–	–	–	–	92.70	75.47	60.74	48.23	37.67	26.79	19.49	13.65
BTF6G-30.3ZR Pe	–	–	–	–	–	22.54	21.39	19.98	18.35	16.59	14.47	12.68	10.59
BTF6F-40.3ZR Qo	–	–	–	–	–	110.74	90.03	72.30	57.22	44.48	32.11	23.48	16.62
BTF6F-40.3ZR Pe	–	–	–	–	–	27.03	25.74	24.12	22.26	22.24	17.03	15.04	12.9

Condensing temperature 40 °C

Model (suffix R) — evaporating °C →	+12.5	+10	+7.5	+5	0	−5	−10	−15	−20	−25	−30	−35	−40
BTF6H-35.3GR Qo	139.35	127.44	116.33	105.98	87.38	71.32	57.54	45.78	35.79	27.36	20.25	–	–
BTF6H-35.3GR Pe	25.26	25.17	24.96	24.65	23.72	22.45	20.90	19.13	17.21	15.20	13.17	–	–
BTF6G-40.3GR Qo	159.75	146.07	133.30	121.40	100.03	81.58	65.74	52.23	40.75	31.07	22.91	–	–
BTF6G-40.3GR Pe	28.91	28.82	28.59	28.24	27.21	25.79	24.05	22.06	19.89	17.61	15.27	–	–
BTF6F-50.3GR Qo	192.45	176.05	160.75	146.48	120.82	98.66	79.62	63.34	49.51	37.80	27.91	–	–
BTF6F-50.3GR Pe	35.01	34.90	34.64	34.23	33.02	31.34	29.29	26.95	24.39	21.70	18.97	–	–
BTF6H-25.3ZR Qo	–	–	–	–	–	70.94	57.31	45.66	35.79	27.47	19.41	13.74	9.18
BTF6H-25.3ZR Pe	–	–	–	–	–	22.58	21.02	19.29	17.44	15.52	13.08	10.99	8.81
BTF6G-30.3ZR Qo	–	–	–	–	–	82.15	66.57	53.28	42.01	32.53	22.57	16.03	10.75
BTF6G-30.3ZR Pe	–	–	–	–	–	26.39	24.54	22.49	20.31	18.07	15.68	13.26	10.62
BTF6F-40.3ZR Qo	–	–	–	–	–	98.29	79.55	63.54	49.96	38.51	27.22	19.51	13.30
BTF6F-40.3ZR Pe	–	–	–	–	–	31.50	29.42	27.10	24.62	22.05	19.79	15.98	13.07

Condensing temperature 50 °C

Model (suffix R) — evaporating °C →	+12.5	+10	+7.5	+5	0	−5	−10	−15	−20	−25	−30	−35	−40
BTF6H-35.3GR Qo	124.23	113.45	103.38	94.00	77.13	62.59	50.11	39.49	30.49	22.93	–	–	–
BTF6H-35.3GR Pe	30.67	30.18	–†	28.91	27.28	25.36	23.22	20.91	18.50	16.04	–	–	–
BTF6G-40.3GR Qo	142.41	130.02	118.45	107.67	88.28	71.57	57.23	45.02	34.69	26.00	–	–	–
BTF6G-40.3GR Pe	34.86	34.34	33.70	32.95	31.16	29.04	26.65	24.06	21.35	18.57	–	–	–
BTF6F-50.3GR Qo	171.77	153.91	143.04	130.10	106.84	86.75	69.50	54.79	42.32	31.75	–	–	–
BTF6F-50.3GR Pe	42.25	41.63	40.87	39.98	37.86	35.34	32.52	29.46	26.26	22.99	–	–	–
BTF6H-25.3ZR Qo	–	–	–	–	–	62.04	49.83	39.43	31.03	22.60	16.18	11.22	7.20
BTF6H-25.3ZR Pe	–	–	–	–	–	25.30	23.19	20.97	18.13	16.20	13.87	11.29	8.63
BTF6G-30.3ZR Qo	–	–	–	–	–	71.94	57.99	46.11	35.97	26.27	18.87	13.12	8.41
BTF6G-30.3ZR Pe	–	–	–	–	–	29.72	27.20	25.44	20.80	19.51	17.03	13.87	10.58
BTF6F-40.3ZR Qo	–	–	–	–	–	86.23	69.44	55.13	43.58	31.81	22.96	16.16	10.59
BTF6F-40.3ZR Pe	–	–	–	–	–	35.37	32.55	29.57	25.74	23.44	20.28	16.66	12.94

2.4 CCS Type-Approval Nominal Points (R507, design pressure 3.2 MPa, 1450 r/min)

Certified model	Nominal evaporating / condensing (°C)	Displacement m³/h	Power kW
BTF6H-25.3ZE	−31.5 / 40.5	110.5	17.8 / 15.8
BTF6G-30.3ZE	−31.5 / 40.5	126.8	22.1 / 19.5
BTF6F-40.3ZE	−31.5 / 40.5	151.6	25.8 / 23.6
BTF6H-35.3GE	−6.5 / 43.5	110.5	56.8 / 27.8
BTF6G-40.3GE	−6.5 / 43.5	126.8	64.8 / 32.2
BTF6F-50.3GE	−6.5 / 43.5	151.6	78.7 / 39.8

2.5 Model Code — How to Read It

Example BTF6G-30.3ZE:

Segment	Meaning
B	Company code (Brilliant)
T	Product universality — T-Series
F	Product characteristic — semi-hermetic piston
6	Number of cylinders (6)
G	Bore/stroke family (H = Ø70, G = Ø75, F = Ø82)
C-series suffix	Series code
30	Nominal motor power, HP
.3	Design serial number
Z / G	Z = medium-low temperature, G = medium-high temperature
E / R	E = ester oil (R134a / R404A / R407A/B/C / R507A), R = mineral oil (R22 / R502)

The T-Series L4 semi-hermetic piston compressors carry a China Classification Society (CCS) Certificate of Type Approval, which is the marine industry's formal confirmation that the manufacturer is capable of producing the certified product to the applicable class rules, and that the type has passed approved testing.

Certificate particulars (from the certificate, No. ZG24PTB00058_01):

Item	Detail
Certificate type	Certificate of Type Approval (型式认可证书)
Certificate No.	ZG24PTB00058_01
Manufacturer	Zhejiang Brilliant Refrigeration Equipment Co., Ltd. (浙江博莱特制冷设备有限公司), Xinchang County, Zhejiang Province
Product	Refrigeration compressors (cooling compressors), product code M0001
Intended for	Domestic fishing vessels / ocean-going fishing vessels
Approved standards	1. CCS Rules for Construction of Ocean-Going Steel Fishing Vessels (2021) and amendments, Part 5, Chapter 2 · 2. Technical Rules for Statutory Inspection of Ocean-Going Fishing Vessels (2019), Chapter 7, Chapter 2 · 3. Technical Rules for Statutory Inspection of Domestic Ocean-Going Fishing Vessels (2019), Chapter 7, Chapter 2
Issuing authority	CCS Zhejiang Branch (中国船级社浙江分社)
Issue date	October 29, 2024
Valid until	October 28, 2029
Approved drawings No.	ZG24PPP20185
Approval test reports	XSBC-CCS-2024001 (2024-09-10, manufacturer laboratory); FXP20240565 / 0566 / 0567 / 0568 / 0570 (2024-09-11, Ningbo Academy of Product and Food Quality Inspection / Ningbo Fiber Inspection Institute)
L4 models in scope	BTF4H-15.3ZE, BTF4G-20.3ZE, BTF4H-25.3GE, BTF4G-30.3GE (R507A, design pressure 3.2 MPa, rated speed 1450 r/min) — full annex also covers the S4/M4/L6 piston lines and the YLG screw line

What the approval means for the buyer. After type approval, every production unit is inspected by a CCS surveyor in accordance with the approved product inspection scheme; on satisfactory inspection the Society issues the Marine Product Certificate for the individual machine. The certificate also records the factory's asbestos-free declaration (reviewed by the Society), and it defines the maintenance conditions: design, material or manufacturing changes affecting major characteristics must be re-approved; the factory quality management system must remain effective and consistent; and the Society may conduct unannounced audits of the manufacturing process, with annual periodical audit within three months before and after the anniversary of expiry.

Scope note. The approved product is the refrigeration compressor itself — evaporators, condensers and control boxes are not part of the approval. Copies of the certificate are only valid bearing the Society's stamp, and the paper and electronic certificates are a single whole and must be used together.

For vessel projects, provide the certificate number and the target model when requesting the Marine Product Certificate; our team supports the CCS surveyor inspection workflow at the factory.