MASUDA K, K1, Lx and U Filter Mounts and DE, ME and TE Indicators

MASUDA lists mounting hardware and electrical contact indicators for selected hydraulic filters. The accessory code depends on the installed filter body and size. The order examples and compatibility table below follow the manufacturer’s accessory catalog.

Mounting hardware codes

Check the mounting sketch and room to remove the filter element before selecting the support.

Option	Catalog description	Published code example
K / K1	Weld-on mounting flange set / single flange	VLM08-100A08T-K
Lx	Adjustable cast mounting flange	FR06-20P06T-Lx
U	U-band mounting option	VLM12D-100A12F-U

Electrical contact indicator compatibility

The electrical contact accessory signals the filter element clogging condition. Use the filter family and size to select a compatible indicator.

Indicator	Compatible families and size ranges in the catalog
ME	VLM 04–24 and VLF 06–20
TE	VLM 32–64, FS 04–24, VLF 24–48, LMT 04–06 and 32–48, FR 04–24, and VLR 06–12
DE	FSA 06–24, APL 03–24, FPM 03–12, BS 32–48, BR 32–48, and HLF 06–16

Electrical interface

The catalog microswitch table lists resistive loads of 5 A at 125 V AC and 3 A at 250 V AC. Check the terminal assignment for the selected indicator and verify that the control circuit and load suit the contact rating.

Ordering information

Provide the full filter designation and size, mounting style and required contact arrangement. For replacement, compare the indicator’s connection and installed dimensions with the existing unit.

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MASUDA MSA-V, MSA-T, MSA-G, CV and OV Hydraulic Reservoir Fillers

MASUDA combines reservoir breathing and filling in the MSA-V, MSA-T and MSA-G families. CV and OV are dedicated fill openings. The two tables keep ventilation and oil-fill flow separate so the reservoir’s air and oil paths can be sized independently.

MSA-V, MSA-T, MSA-TK and MSA-G filler breathers

MSA-V, MSA-T, MSA-TK and MSA-G filler breathers — official product illustration

The 45K and 63K versions allow the oil strainer to be withdrawn without removing the mounting flange. Airflow is listed at 1 kPa.

Model	Air element	Airflow at 1 kPa (L/min)	Oil strainer	Catalog fill flow (L/min)
MSA-V-22	10 µm PVF	60	30 mesh equivalent	5
MSA-V-30	10 µm PVF	100	30 mesh equivalent	10
MSA-V-50	10 µm PVF	150	30 mesh equivalent	25
MSA-V-70	10 µm PVF	250	30 mesh equivalent	60
MSA-T-30	40 µm PVF	140	10 mesh equivalent	30
MSA-T-40	40 µm PVF	250	10 mesh equivalent	60
MSA-T-45K	40 µm PVF	500	10 mesh equivalent	100
MSA-T-63K	40 µm PVF	650	10 mesh equivalent	300
MSA-G-30	40 µm PVF	140	50 mesh wire screen	10
MSA-G-40	40 µm PVF	250	50 mesh wire screen	20

CV and OV dedicated filler openings

CV and OV dedicated filler openings — official product illustration

CV uses a screw cap and OV uses a quick-release cap. CV mounting pitches correspond to the MSA-C50T and MSA-C75T mounting patterns.

Model	Oil strainer	Catalog fill flow (L/min)	Cap
CV-45	30 mesh equivalent	100	Screw cap
CV-75	30 mesh equivalent	250	Screw cap
OV-50	10 mesh equivalent	330	Quick-release cap
OV-63	10 mesh equivalent	340	Quick-release cap

Filling and service access

Identify the tank opening, cap clearance, required oil-fill rate and access for strainer removal. Check actual oil viscosity when comparing fill rates. On a combined filler breather, specify the required airflow separately from the rate at which oil is added.

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MASUDA MSA, MB and MSA-C Hydraulic Reservoir Air Breathers

A reservoir breather lets air pass as the oil level changes. MASUDA lists threaded MSA and MB breathers plus MSA-C assemblies with a fill opening. Their airflow points below use 10 µm PVF media and a pressure drop of 1 kPa.

MSA threaded air breathers

MSA threaded air breathers — official product illustration

Aluminum-alloy body. The series lists 10 µm PVF or stainless wire mesh as air element options.

Model	Connection	Airflow (L/min)	Pressure loss (kPa)
MSA-60N	R1/2	60	1
MSA-100N	R3/4	100	1
MSA-250N	R3/4	250	1
MSA-650N	R1	650	1
MSA-1500N	R2	1500	1

MB threaded air breathers

MB threaded air breathers — official product illustration

Compact pressed construction. The series lists PVF grades of 3, 10 and 40 µm, as well as stainless wire mesh.

Model	Connection	Airflow (L/min)	Pressure loss (kPa)
MB-02	R1/4	60	1
MB-03	R3/8	100	1
MB-06	R3/4	180	1
MB-08	R1	350	1
MB-10	R1 1/4	700	1
MB-12	R1 1/2	800	1
MB-16	R2	1500	1
MB-24	R3	1900	1

MSA-C combined breather and filler

MSA-C combined breather and filler — official product illustration

Standard and -P connection variants. The -P suffix identifies the welded-pipe connection. Check available inlet and outlet valve options for the configuration.

Model	Connection	Airflow (L/min)	Pressure loss (kPa)
MSA-C30T	Flange	60	1
MSA-C50T	Flange	100	1
MSA-C75T	Flange	250	1
MSA-C75T-B	Flange	650	1
MSA-C30T-P	Welded pipe	60	1
MSA-C50T-P	Welded pipe	100	1
MSA-C75T-P	Welded pipe	250	1
MSA-C75T-B-P	Welded pipe	650	1

Selecting by air exchange

Estimate the maximum rate at which oil enters or leaves the tank and check allowable tank pressure or vacuum. The table compares clean airflow at the stated restriction and media. Confirm the actual opening, service access and the need for valves where the reservoir is subject to motion or oil splash.

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MASUDA OFI G01 Modular Hydraulic Filter — 21 MPa

OFI G01 is a compact hydraulic filter for a modular valve stack. Its mounting interface follows ISO 4401-AB-03-4-A. The catalog test point uses a 10 µm paper element at 32 mm²/s oil viscosity.

OFI

OFI — official product illustration

21 MPa maximum working pressure and 31 MPa test pressure. 32 mm²/s oil with 10 µm paper.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
OFI G01	ISO 4401-AB-03-4-A	30	0.15 MPa

Modular stack fit

Compare the port layout and mounting face of the selected stack with the OFI drawing. Review mounting bolt length and the added stack height. Confirm the element material, filtration grade and service clearance for the actual installation.

Catalog rating point

The published 30 L/min test point has a pressure loss of 0.15 MPa. Use the fluid viscosity and the required flow to check the actual restriction. The maximum working pressure is 21 MPa and the test pressure is 31 MPa.

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MASUDA MAR and VLR Tank-Top Hydraulic Return Filters

MAR and VLR are flanged filters installed at the top of a hydraulic reservoir. They provide two inlet sizes per model. MAR uses an aluminum-alloy housing, while VLR uses ductile iron. Both families list a 1 MPa maximum working pressure and a 1.5 MPa test pressure.

MAR

MAR — official product illustration

1 MPa maximum working pressure. 50 mm²/s oil with 10 µm paper.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
MAR 08	Rc1 , 3/4	120	0.04 MPa
MAR 10	Rc1 1/4 , Rc1 1/2	220	0.04 MPa
MAR 12	Rc1 1/4 , Rc1 1/2	300	0.03 MPa

VLR

VLR — official product illustration

Catalog figures at 50 mm²/s oil viscosity. The table distinguishes the 20 µm and 10 µm element test points.

Catalog model	Inlet connections	Flow with 20 µm element (L/min)	Flow with 10 µm element (L/min)	Pressure loss
VLR 06	Rc3/4 , Rc1	70	60	0.025 MPa
VLR 10	Rc1 1/4 , Rc1	140	100	0.025 MPa
VLR 12	Rc1 1/2 , Rc1 1/4	280	230	0.025 MPa

Reservoir interface

Match the tank mounting pattern, inlet position and available internal depth. The MAR catalog permits other discharge pipe lengths by request. Include the desired length and the actual tank drawing in the specification.

Sizing the return filter

Select by the return flow and element grade. For example, the VLR table lists 280 L/min with 20 µm media and 230 L/min with 10 µm media for VLR 12 at the listed pressure drop. Leave room above the tank for the removal and installation of the element.

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MASUDA FR, VLF-R, VLM-R, LMT, LPF, FPL and BS/BR Low-Pressure Hydraulic Filters

These filters cover low-pressure and return-line installations, including compact housings, an integrated isolation design and large flanged bodies. BS and BR are shown together because MASUDA lists the family for large suction and low-pressure applications. The test media and pressure-loss units are retained by model.

FR

FR — official product illustration

1 MPa maximum working pressure. 50 mm²/s oil with 10 µm paper. Sizes 10–24 have threaded outlets and flanged inlets in the standard layout.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
FR 04	15A	20	5 kPa
FR 06	20A	40	6 kPa
FR 08	25A	60	3 kPa
FR 10	32A	100	3 kPa
FR 12	40A	180	5 kPa
FR 16	50A	300	6 kPa
FR 20	65A	420	4 kPa
FR 24	80A	600	5 kPa

VLF-R

VLF-R — official product illustration

1 MPa maximum working pressure. 50 mm²/s oil with 10 µm paper.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
VLF 06R	20A	70	0.03 MPa
VLF 08R	25A	100	0.03 MPa
VLF 12R	40A	180	0.03 MPa
VLF 16R	50A	500	0.04 MPa
VLF 20R	65A	600	0.04 MPa
VLF 24R	80A	1000	0.04 MPa
VLF 32R	100A	1200	0.04 MPa
VLF 40R	125A	2000	0.05 MPa
VLF 48R	150A	2500	0.05 MPa

VLM-R 04–24

VLM-R 04–24 — official product illustration

1 MPa maximum working pressure. 50 mm²/s oil with 10 µm paper. The VLM 12R body appears with 10 and 12 connection codes.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
VLM 04R	15A / T	40	0.02 MPa
VLM 06R	20A / T	70	0.025 MPa
VLM 08R	25A / T	100	0.025 MPa
VLM12R (port code 10)	32A / F	200	0.025 MPa
VLM12R (port code 12)	40A / F	280	0.025 MPa
VLM 16R	50A / F	500	0.025 MPa
VLM 20R	65A / F	800	0.034 MPa
VLM 24R	80A / F	1000	0.034 MPa

VLM-R 32–64

VLM-R 32–64 — official product illustration

1 MPa maximum working pressure. 50 mm²/s oil with 10 µm paper.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
VLM 32R	100A / F	1500	0.04 MPa
VLM 40R	125A / F	2400	0.05 MPa
VLM 48R	150A / F	3400	0.05 MPa
VLM64DR-953※	200A / F	4300	0.05 MPa

LMT 32–48

LMT 32–48 — official product illustration

1 MPa maximum working pressure. 50 mm²/s oil with 10 µm stainless wire mesh. Flange connections.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
LMT 32	100A / F	1500	0.04 MPa
LMT 40	125A / F	2400	0.04 MPa
LMT 48	150A / F	3400	0.04 MPa

LPF

LPF — official product illustration

0.7 MPa maximum working pressure. 50 mm²/s oil with 10 µm paper. Rc threaded ports.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
LPF 06	Rc3/4	40	0.04 MPa
LPF 08	Rc1	60	0.04 MPa

FPL

FPL — official product illustration

1.5 MPa maximum working pressure. 50 mm²/s oil with 10 µm paper. Rc threaded ports.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
FPL 06	Rc3/4	60	0.05 MPa
FPL 08	Rc1	70	0.05 MPa

BS and BR

BS and BR — official product illustration

50 mm²/s oil. BS uses 100 µm star-shaped stainless mesh and BR uses 10 µm paper in these tests. Slip-on weld flanges. The detail page lists 1 MPa maximum working pressure for the family.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
BS 32	100A	1000	7 kPa
BS 40	125A	1500	7 kPa
BS 48	150A	2000	7 kPa
BR 32	100A	1500	0.034 MPa
BR 40	125A	2400	0.034 MPa
BR 48	150A	3400	0.034 MPa

Comparing installation arrangements

FR can be fitted at the top of a reservoir. VLF-R has integral port isolation for service. The large low-pressure LMT 32–48 has inline inlet and outlet elevations. LPF is serviced by replacing its cartridge assembly. Use the required service access and the actual port layout to select the housing.

Return flow and backpressure

Check the highest return flow, including cylinder area effects during retraction or extension. Use operating viscosity and the selected element to evaluate pressure drop. The LMT 32–48 rating belongs to the large low-pressure series and the LMT 01–03 pressure-line versions have separate specifications.

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MASUDA APL, LMT, LMT-N, FPM and HLF Hydraulic Pressure Line Filters

The MASUDA pressure-line range includes lightweight aluminum housings and ductile iron models. The five families below range from 3.5 to 21 MPa maximum working pressure. Each series uses separate catalog test conditions for its flow and pressure-drop figures.

APL

APL — official product illustration

3.5 MPa maximum working pressure. 50 mm²/s oil with 10 µm paper. Sizes 03–12 are threaded as standard, with flange options. Sizes 16–24 are flanged.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
APL 03	Rc3/8 / (10A)	20	0.02 MPa
APL 04	Rc1/2 / (15A)	40	0.04 MPa
APL 06	Rc3/4 / (20A)	70	0.03 MPa
APL 08	Rc1 / (25A)	100	0.04 MPa
APL 10	Rc1 1/4 / (32A)	160	0.03 MPa
APL 12	Rc1 1/2 / (40A)	260	0.05 MPa
APL 16	50A	400	0.05 MPa
APL 20	65A	600	0.044 MPa
APL 24	80A	700	0.054 MPa

LMT 01–03

LMT 01–03 — official product illustration

4 MPa maximum working pressure. 50 mm²/s oil with 10 µm stainless wire mesh. Ports shown are Rc threads.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
LMT 01	Rc1/8	10	0.07 MPa
LMT 02	Rc1/4	15	0.06 MPa
LMT 03	Rc3/8	20	0.07 MPa

LMT-N 04 and 06

LMT-N 04 and 06 — official product illustration

3.5 MPa maximum working pressure. 50 mm²/s oil with 10 µm paper. Ports shown are Rc threads.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
LMT 04N	Rc1/2	40	0.05 MPa
LMT 06N	Rc3/4	60	0.06 MPa

FPM

FPM — official product illustration

7 MPa maximum working pressure. 50 mm²/s oil with 10 µm paper. Sizes 03–08 are threaded as standard, with flange options. Sizes 10 and 12 are flanged.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
FPM 03	Rc3/8 / (10A)	20	0.02 MPa
FPM 04	Rc1/2 / (15A)	40	0.04 MPa
FPM 06	Rc3/4 / (20A)	70	0.03 MPa
FPM 08	Rc1 / (25A)	100	0.04 MPa
FPM 10	32A	160	0.03 MPa
FPM 12	40A	260	0.05 MPa

HLF

HLF — official product illustration

21 MPa maximum working pressure. 50 mm²/s oil with 10 µm paper. Specify weld flanges or threaded flanges.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
HLF 06	20A	40	0.03 MPa
HLF 08	25A	80	0.04 MPa
HLF 12	40A	160	0.03 MPa
HLF 16	50A	250	0.04 MPa

Housing and layout

APL uses aluminum alloy, while FPM and HLF use ductile iron. APL and FPM permit a change in the flow direction by reversing the cover as specified by the manufacturer. LMT 01–03 uses a downward-removable element for installations with limited access above the filter. LMT-N 04 and 06 uses an aluminum die-cast body.

Pressure rating and element choice

Check maximum working pressure, expected peaks and the required flow at the operating viscosity. Select the element grade and material together with any bypass and indicator option. Confirm the port direction and maintenance clearance on the drawing for the exact size.

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MASUDA FSA, FS, VLF, VLM and SQ Hydraulic Suction Line Filters

MASUDA suction line filters serve the circuit between the oil supply and pump inlet. FSA is designed to reduce trapped air in systems with variable-displacement pumps. FS is a compact serviceable type, VLF integrates an isolation valve, VLM includes larger flow sizes, and SQ is a compact threaded family.

FSA

FSA — official product illustration

Flanged. Tested with 50 mm²/s oil and 105 µm stainless wire mesh.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
FSA 06	20A	33	2 kPa
FSA 08	25A	53	3 kPa
FSA 10	32A	90	2 kPa
FSA 12	40A	120	3 kPa
FSA 16	50A	200	2 kPa
FSA 20	65A	325	3 kPa
FSA 24	80A	430	3 kPa

FS

FS — official product illustration

50 mm²/s oil with 100 µm stainless wire mesh. Standard sizes 04–08 are threaded at both ports. Sizes 10–24 use threaded inlets and flanged outlets.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
FS 04	15A	20	5 kPa
FS 06	20A	40	6 kPa
FS 08	25A	60	3 kPa
FS 10	32A	100	3 kPa
FS 12	40A	180	5 kPa
FS 16	50A	300	6 kPa
FS 20	65A	420	4 kPa
FS 24	80A	600	5 kPa

VLF

VLF — official product illustration

50 mm²/s oil with 100 µm aluminum notch wire or stainless mesh. F is a slip-on weld flange. T denotes a threaded flange.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
VLF 06	20A / F	40	7 kPa
VLF 08	25A / F	60	6 kPa
VLF 12	40A / F	100	7 kPa
VLF 16	50A / F	220	6 kPa
VLF 20	65A / F	300	5 kPa
VLF 24	80A / F	600	4 kPa
VLF 32	100A / F	800	5 kPa
VLF 40	125A / F	1000	6 kPa
VLF 48	150A / F	1250	6 kPa

VLM 04–24

VLM 04–24 — official product illustration

50 mm²/s oil with 100 µm notch wire or star-shaped mesh. The VLM 12 body appears with 10 and 12 connection codes.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
VLM 04	15A / T	30	6 kPa
VLM 06	20A / T	40	5 kPa
VLM 08	25A / T	60	5 kPa
VLM12 (port code 10)	32A / F	120	5 kPa
VLM12 (port code 12)	40A / F	180	7 kPa
VLM 16	50A / F	300	6 kPa
VLM 20	65A / F	500	5 kPa
VLM 24	80A / F	600	4 kPa

VLM 32–64

VLM 32–64 — official product illustration

50 mm²/s oil with 100 µm star-shaped stainless wire mesh.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
VLM 32	100A / F	1000	4 kPa
VLM 40	125A / F	1500	4 kPa
VLM 48	150A / F	2000	4 kPa
VLM64D - 953※	200A / F	3000	4 kPa

SQ

SQ — official product illustration

50 mm²/s oil with 100 µm stainless wire mesh. Ports shown are Rc threads.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
SQ 04	Rc1/2	36	7 kPa
SQ 06	Rc3/4	50	7 kPa
SQ 08	Rc1	80	7 kPa

Connections and service access

Specify the actual inlet and outlet geometry. Some standard FS sizes use different connection types on the two sides. For VLM, identify the body, the connection code and the relative port heights. Leave room to remove the element and read the indicator where fitted.

Interpreting the suction data

Treat the published flow and pressure loss as paired test points for the stated clean element and viscosity. A colder oil or loaded element can increase inlet restriction. For a VLF arrangement, follow the manufacturer’s service instructions for using the integral valve and verify that the normal operating flow path is open.

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MASUDA MST, W-MSN, MSN and MSY Hydraulic Suction Strainers

These strainers screen oil on the inlet side of hydraulic pumps. The series differ in connection size, element construction and the viscosity used to report catalog flow. MST uses an aluminum notch-wire element. The other three use stainless mesh, with MSY packaged as a compact star-shaped mesh design.

MST

MST — official product illustration

50 mm²/s oil with 150-mesh aluminum notch wire.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
MST 04	Rc1/2	30	6 kPa
MST 06	Rc3/4	40	5 kPa
MST 08	Rc1	60	5 kPa
MST 10	Rc1 1/4	120	6 kPa
MST 12	Rc1 1/2	180	7 kPa
MST 16	Rc2	300	7 kPa

W-MSN

W-MSN — official product illustration

50 mm²/s oil with 150-mesh stainless wire mesh.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
W-MSN 01	Rc1/8	6	7 kPa
W-MSN 02	Rc1/4	11	6 kPa
W-MSN 03	Rc3/8	20	6 kPa

MSN

MSN — official product illustration

50 mm²/s oil with 150-mesh stainless wire mesh. Sizes 04–16 use single mesh and sizes 20–40 use star-shaped mesh in the catalog flow table.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
MSN 04	Rc1/2	30	5 kPa
MSN 06	Rc3/4	40	4 kPa
MSN 08	Rc1	60	4 kPa
MSN 10	Rc1 1/4	120	5 kPa
MSN 12	Rc1 1/2	180	6 kPa
MSN 16	Rc2	300	6 kPa
MSN 20	Rc2 1/2	500	5 kPa
MSN 24	Rc3	600	4 kPa
MSN 32	Rc4	1000	4 kPa
MSN 40	Rc5	1500	4 kPa

MSY

MSY — official product illustration

32 mm²/s oil with 150-mesh stainless wire mesh.

Catalog model or size	Port or interface	Test flow (L/min)	Pressure loss
MSY 04	Rc1/2	33	4 kPa
MSY 06	Rc3/4	50	4 kPa
MSY 08	Rc1	90	5 kPa
MSY 10	Rc1 1/4	140	5 kPa
MSY 12	Rc1 1/2	200	4 kPa
MSY 16	Rc2	300	4 kPa
MSY 20	Rc2 1/2	580	4 kPa
MSY 24	Rc3	800	4 kPa

Selecting a strainer for the pump inlet

Use the required inlet flow and the highest expected startup viscosity to estimate restriction. Compare the clean-element pressure drop and the total suction-line loss with the pump inlet requirements. MSY figures use a different test viscosity from the other three series.

Model and element selection

Specify the actual fluid, connection size, mesh grade and available tank clearance. W-MSN covers the small Rc1/8 through Rc3/8 range and lists compatibility with mineral and fire-resistant hydraulic fluids. Check material and seal options for the exact fluid and model.

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Huatong Pneumatic Adhesive Feed Pump Lift Cylinders, Air Motors and Integrated Valves

Huatong lists three pneumatic product types for adhesive feed equipment. The pump lift cylinder positions the feed assembly. The air motor drives the pump. The integrated valve handles the pneumatic on/off control at the air motor head. These products are described by function in the catalog.

Models and selection data

Model or series	Published configuration or function	Selection details
Pump lift cylinder	Pneumatic actuator for raising and lowering the feed assembly	Supply the required stroke, supported load, mount, rod interface and air pressure.
Air motor cylinder	Pneumatic drive component for the feed pump	Identify the pump assembly, motion interface and required duty.
Integrated control valve	Pneumatic on/off control for the pump head	Specify the control signal, normal state, ports and required airflow.

Matching a pump lift

Identify the mass of the moving assembly and the minimum and maximum air pressure available at the cylinder. Record lift and lower travel, the mounting and rod-end geometry, and the space around the pump. Confirm how the assembly is guided and retained at its working positions.

Separating air and material specifications

For the air motor and integrated valve, identify the compressed-air connections and the control arrangement. Provide the adhesive type and process requirements separately so the supplier can check the pump configuration. Use the pump drawing or assembly identification when requesting a replacement because the public entries do not provide complete order codes.

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Huatong Pneumatic MD, GS, MT, GV, GD and MB Air Compressor Series

The air compressor catalog lists six series. GV is identified as the variable-frequency range and MT as the simplified range. The series names give the starting point for selection. Match capacity, supply pressure and the electrical and installation details using the data for the proposed unit.

Models and selection data

Model or series	Published configuration or function	Selection details
MD	MD air compressor family	Specify required free-air delivery, working pressure and motor supply.
GS	GS air compressor family	Request rated delivery at the required pressure and configuration details.
MT	Simplified air compressor family	Confirm the package contents, receiver and controls for the quoted model.
GV	Variable-frequency air compressor family	Confirm the operating flow range, delivery pressure and electrical supply.
GD	GD air compressor family	Confirm package footprint, cooling and service clearance.
MB	MB air compressor family	Confirm the full model and rated duty before selecting the unit.

Demand and operating point

List the air consumers, their operating pressure and how many can operate together. Account for pressure loss between the compressor and point of use. Compare free-air delivery at the required working pressure and under comparable rating conditions.

Variable demand and system equipment

For varying demand, evaluate the GV operating range against the load profile, including the lowest sustained demand. Specify electrical supply, available ventilation, dryer and filtration requirements, and receiver capacity. Quote the full model designation so these details stay attached to the selected package.

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Huatong Pneumatic CDC HUT, HUL, HUC, HPC and HCVU Pneumatic Fittings

The CDC assortment listed by Huatong includes push-in fittings and one-way valves. Its catalog contains metric and inch listings, sometimes under the same base family name. The full suffix, tube dimension and thread form identify the part for installation.

Models and selection data

Model or series	Published configuration or function	Selection details
HUT / HUL / HUC	CDC push-in fitting families	Verify the connection geometry and each tube outside diameter.
HPC / HPC-G	CDC push-in fitting families	Specify thread form and size, tube size and seal arrangement.
HLJ / HPL / HCJ / HCJ-G	Additional CDC push-in fitting families	Compare the individual drawing and full suffix to the installation.
HCVU	CDC one-way valve family	Confirm direction of flow, the connection variant and operating pressure data.
HCP	CDC accessory listing	Confirm the full ordering code and compatible connection.

Tube and thread compatibility

Record tube outside diameter and whether the application uses metric or inch tubing. Confirm the exact male or female thread standard and the sealing face. Threads with similar nominal dimensions may use different pitch or sealing methods.

Selecting by circuit function

Use the drawing to match tube routing and installation clearance. A check valve adds a one-way flow function, so identify the intended flow direction and required opening pressure from the full part specification. Record the operating pressure, temperature and tube material when selecting any fitting.

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