Name: Plastic Diaphragm Valve
Brand: Supmea
SKU: 03016
Rating: 4.8 (15 reviews)

Plastic Diaphragm Valve

Supmea plastic diaphragm valves — weir-type design with zero dead-space flow path. EPDM, FPM and PTFE-faced diaphragm options. UPVC, PP and PVDF body materials for high-purity, chemical and slurry applications.

Characteristics

Weir-type design
Diaphragm sealing structure
PTFE-faced EPDM composite diaphragm
Replaceable diaphragm cartridge
Precise flow regulation
Suitable for slurry/particulate media
Pneumatic/electric actuator options
Widely used for high-purity media

Technical Specifications

Parameter	Specification
Design Standard	DIN 3356 / ISO 5752
Connection Type	Flange (ISO 7005) / Socket / Thread
Nominal Diameter	DN15 ~ DN200
Nominal Pressure	PN10
Temperature Range	-10°C ~ 120°C (material dependent)
Body Material	UPVC / PP / PVDF
Diaphragm Material	EPDM / FPM / PTFE-faced EPDM
Bonnet Material	PP-GF (glass-fiber reinforced PP)
Operation	Handwheel (rising stem)
Actuator Ready	Yes — Pneumatic / Electric
Flow Type	Weir / Straight Through
Dead Space	Zero (Weir type, full bore)
Leakage Class	Zero Leakage (Tight Shutoff)
Installation	Any orientation
Maintenance	Replaceable diaphragm cartridge

Key Features

Weir-type design — smooth flow path with no dead zones, no media retention, easy drainage
Diaphragm sealing structure — valve interior completely isolated from operating mechanism, zero external leakage
PTFE-faced EPDM composite diaphragm — combines elastic sealing with chemical resistance
Replaceable diaphragm cartridge — quick field replacement, reduced maintenance downtime
Precise flow regulation — handwheel with position indicator, linear flow characteristics
Suitable for slurry/particulate media — non-clogging flow path, passes suspended solids
Pneumatic/electric actuator options — supports automated control and remote operation
Widely used for high-purity media — pharmaceutical, semiconductor, ultrapure water systems

Available Models

Model	Description
Weir Type Diaphragm Valve	Standard weir configuration with raised weir ridge for positive shutoff. UPVC/PP/PVDF body, DN15–DN200. EPDM/FPM/PTFE-faced diaphragm options.
Straight Through Type	Full-bore straight-through flow path for viscous fluids and solid-containing media. PP/PVDF body, DN15–DN100. Non-clogging full-bore design, minimal pressure loss.
Pneumatic Actuated Diaphragm Valve	NC (Normally Closed) / NO (Normally Open) / Double-acting pneumatic actuator. PP cylinder housing. Suitable for automated production lines and remote-controlled corrosive media piping.

Technical Data

Dimension Data – Weir Type Flanged (PN10, DN15 ~ DN200)

DN	15	20	25	32	40	50	65	80	100	125	150	200
L (mm)	130	150	160	180	200	230	290	310	350	400	480	600
D (mm)	95	105	115	140	150	165	185	200	220	250	285	340
H (mm)	105	115	125	140	155	175	205	220	260	305	340	410
HW (mm)	100	100	120	140	140	160	180	200	250	300	300	350
n-φd	4-14	4-14	4-14	4-18	4-18	4-18	4-18	8-18	8-18	8-18	8-22	8-22