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Double block and bleed valves combining primary and secondary isolation with a bleed port in one compact unit, reducing leakage paths and piping. ANSI B16.5 flanged inlet 1/2 in - 3 in (Class 150 - 2500); 1/2 in - 1 in NPT female outlet; 1/2 in NPT vent. Body SS ASTM A182 F316/F316L, CS A350 LF2/A105 or Duplex A182 F51; 304 SS trim; fire-safe to BS 6755 Part 2 / API 607; heat-code traceable to EN 10204 3.1. Max cold working pressure 6,000 psig (414 bar) PTFE seats (-54 to 204 C) or 10,000 psig (690 bar) PEEK seats (-54 to 232 C).

Material: SS ASTM A182 F316/F316L; CS A350 LF2/A105; Duplex A182 F51; 304 SS trim
Size range: Flanged 1/2 in - 3 in (DN15 - DN80); NPT outlet 1/2 in - 1 in
Working pressure: 6,000 psig (414 bar) PTFE seats; 10,000 psig (690 bar) PEEK seats; body to Class 2500
Connection: ANSI B16.5 flange / NPT female (outlet & vent)
Certificate: EN 10204 3.1 material test certificate with every shipment.
OEM / ODM accepted. Free samples for standard sizes.

Applications: chemical processing, petrochemical, power generation, oil and gas, semiconductor, pulp and paper, water treatment and laboratory analysis systems.
Quality: 100% pressure tested before shipment; EN 10204 3.1 MTC with heat number traceability; ISO 9001 certified manufacturing.
Packing: each piece poly-bagged and capped, carton box inside and seaworthy plywood case outside; export standard marking.
Delivery: 15-20 days for standard sizes after order confirmation; 25-30 days for customized configurations.
Payment: T/T 30% deposit, balance against copy of B/L; L/C at sight acceptable.

Nantong Samson Precision Industry Co., Ltd. is a manufacturer based in Nantong, Jiangsu, China, specialized in 316/316L stainless steel instrumentation valves, double ferrule tube fittings, hydraulic fittings and high pressure pipeline components rated 6000-10000 psi. Our products are interchangeable with major international brands and are exported to Europe, North America, Southeast Asia and the Middle East. Contact us for drawings, samples or OEM projects.

Quick-connect couplings for fluid lines that require frequent connection and disconnection. 316 stainless steel construction for chemical compatibility and long service life in instrumentation and cooling circuits. QC4 / QC6 / QC8 body sizes; SESO (single-end shutoff), DESO (double-end shutoff) and full-flow types; seals FKM / EPDM / PTFE; temperature depends on seal.

Material: SS316 (standard); SS304 optional
Size range: QC4 / QC6 / QC8 (approx 1/4 in - 1/2 in)
Working pressure: Up to 3,000 psig (207 bar)
Connection: Tube fitting (fractional & metric), NPT, ISO/BSP tapered, hose
Certificate: EN 10204 3.1 material test certificate with every shipment.
OEM / ODM accepted. Free samples for standard sizes.

Applications: chemical processing, petrochemical, power generation, oil and gas, semiconductor, pulp and paper, water treatment and laboratory analysis systems.
Quality: 100% pressure tested before shipment; EN 10204 3.1 MTC with heat number traceability; ISO 9001 certified manufacturing.
Packing: each piece poly-bagged and capped, carton box inside and seaworthy plywood case outside; export standard marking.
Delivery: 15-20 days for standard sizes after order confirmation; 25-30 days for customized configurations.
Payment: T/T 30% deposit, balance against copy of B/L; L/C at sight acceptable.

Nantong Samson Precision Industry Co., Ltd. is a manufacturer based in Nantong, Jiangsu, China, specialized in 316/316L stainless steel instrumentation valves, double ferrule tube fittings, hydraulic fittings and high pressure pipeline components rated 6000-10000 psi. Our products are interchangeable with major international brands and are exported to Europe, North America, Southeast Asia and the Middle East. Contact us for drawings, samples or OEM projects.

Compact valve manifolds that consolidate isolation, equalizing and vent/bleed functions for differential pressure transmitters and instrument loops. 2-, 3- and 5-valve configurations with flange or threaded process connections. Body SS316 / SS316L bar stock / forged block manifold; manual T-handle operation.

Material: SS316 / SS316L (bar stock / forged block)
Size range: 1/2 in process / 1/4 in instrument ports
Working pressure: Up to 6,000 psig (414 bar); -29 to 232 C (packing dependent)
Connection: Process 1/2 in NPT-F or flange (DIN/ANSI); Instrument 1/4 in NPT-F or M20
Certificate: EN 10204 3.1 material test certificate with every shipment.
OEM / ODM accepted. Free samples for standard sizes.

Applications: chemical processing, petrochemical, power generation, oil and gas, semiconductor, pulp and paper, water treatment and laboratory analysis systems.
Quality: 100% pressure tested before shipment; EN 10204 3.1 MTC with heat number traceability; ISO 9001 certified manufacturing.
Packing: each piece poly-bagged and capped, carton box inside and seaworthy plywood case outside; export standard marking.
Delivery: 15-20 days for standard sizes after order confirmation; 25-30 days for customized configurations.
Payment: T/T 30% deposit, balance against copy of B/L; L/C at sight acceptable.

Nantong Samson Precision Industry Co., Ltd. is a manufacturer based in Nantong, Jiangsu, China, specialized in 316/316L stainless steel instrumentation valves, double ferrule tube fittings, hydraulic fittings and high pressure pipeline components rated 6000-10000 psi. Our products are interchangeable with major international brands and are exported to Europe, North America, Southeast Asia and the Middle East. Contact us for drawings, samples or OEM projects.

Non-return check valves that prevent reverse flow in instrumentation, hydraulic and pump discharge lines. Series C, CH, CP/CPA, CA and CL. Resilient O-ring seat for leak-free sealing; working pressure up to 3,000 psig (207 bar); cracking pressure 1/3 - 25 psig (0.02 - 1.7 bar); working temperature -23 to 190 deg C. Body SS316 to ASTM A479; O-ring FKM; spring 302 SS to A313. Ends: NPT male/female, tube, socket weld, butt weld.

Material: SS316 (ASTM A479); brass option; O-ring FKM / Buna N; spring 302 SS (A313)
Size range: 1/8 in - 1 in ; 6 mm - 25 mm
Working pressure: Up to 3,000 psig (207 bar)
Connection: NPT male/female / tube / socket weld / butt weld
Certificate: EN 10204 3.1 material test certificate with every shipment.
OEM / ODM accepted. Free samples for standard sizes.

Applications: chemical processing, petrochemical, power generation, oil and gas, semiconductor, pulp and paper, water treatment and laboratory analysis systems.
Quality: 100% pressure tested before shipment; EN 10204 3.1 MTC with heat number traceability; ISO 9001 certified manufacturing.
Packing: each piece poly-bagged and capped, carton box inside and seaworthy plywood case outside; export standard marking.
Delivery: 15-20 days for standard sizes after order confirmation; 25-30 days for customized configurations.
Payment: T/T 30% deposit, balance against copy of B/L; L/C at sight acceptable.

Nantong Samson Precision Industry Co., Ltd. is a manufacturer based in Nantong, Jiangsu, China, specialized in 316/316L stainless steel instrumentation valves, double ferrule tube fittings, hydraulic fittings and high pressure pipeline components rated 6000-10000 psi. Our products are interchangeable with major international brands and are exported to Europe, North America, Southeast Asia and the Middle East. Contact us for drawings, samples or OEM projects.

Bar-stock needle valves for precise, fine adjustment of flow in instrumentation, sampling and hydraulic circuits. Series: BN (3,000 psig), BNH (5,000 psi), FN (6,000 psig), FNH (10,000 psi), UBN/UN (6,000 psig), UNH (10,000 psig), RP/RPG rising plug and GVB/GVR gauge valves. Body SS316 bar stock to ASTM A479; PTFE or graphite packing; non-rotating stem tip option.

Material: SS316 bar stock (ASTM A479)
Size range: 1/8 in - 1 in
Working pressure: 3,000 - 10,000 psig (207 - 690 bar) by series
Connection: Tube / NPT (M&F) / manifold
Certificate: EN 10204 3.1 material test certificate with every shipment.
OEM / ODM accepted. Free samples for standard sizes.

Applications: chemical processing, petrochemical, power generation, oil and gas, semiconductor, pulp and paper, water treatment and laboratory analysis systems.
Quality: 100% pressure tested before shipment; EN 10204 3.1 MTC with heat number traceability; ISO 9001 certified manufacturing.
Packing: each piece poly-bagged and capped, carton box inside and seaworthy plywood case outside; export standard marking.
Delivery: 15-20 days for standard sizes after order confirmation; 25-30 days for customized configurations.
Payment: T/T 30% deposit, balance against copy of B/L; L/C at sight acceptable.

Nantong Samson Precision Industry Co., Ltd. is a manufacturer based in Nantong, Jiangsu, China, specialized in 316/316L stainless steel instrumentation valves, double ferrule tube fittings, hydraulic fittings and high pressure pipeline components rated 6000-10000 psi. Our products are interchangeable with major international brands and are exported to Europe, North America, Southeast Asia and the Middle East. Contact us for drawings, samples or OEM projects.

Compact instrumentation ball valves for isolation and switching in instrument and process lines. Series: OIB one-piece (3,000 psig, -54 to 148 C), HBB hex bar stock, HPB high performance, TB/TBH trunnion (6,000 / 10,000 psig) and PB three-piece. Body SS316 to ASTM A182 F316; ball / stem SS316 to A276; seats PTFE / PEEK / UHMWPE. Connections: tube, NPT/BSP male/female, panel mount, flange (trunnion).

Material: SS316 body (A182 F316); ball / stem A276; packing PTFE / UHMWPE / PEEK
Size range: 1/8 in - 1 in (instrumentation); larger trunnion sizes
Working pressure: 3,000 psig (207 bar) instrumentation; up to 10,000 psig (690 bar) trunnion
Connection: Tube / NPT / BSP / panel mount / flange (trunnion)
Certificate: EN 10204 3.1 material test certificate with every shipment.
OEM / ODM accepted. Free samples for standard sizes.

Applications: chemical processing, petrochemical, power generation, oil and gas, semiconductor, pulp and paper, water treatment and laboratory analysis systems.
Quality: 100% pressure tested before shipment; EN 10204 3.1 MTC with heat number traceability; ISO 9001 certified manufacturing.
Packing: each piece poly-bagged and capped, carton box inside and seaworthy plywood case outside; export standard marking.
Delivery: 15-20 days for standard sizes after order confirmation; 25-30 days for customized configurations.
Payment: T/T 30% deposit, balance against copy of B/L; L/C at sight acceptable.

Nantong Samson Precision Industry Co., Ltd. is a manufacturer based in Nantong, Jiangsu, China, specialized in 316/316L stainless steel instrumentation valves, double ferrule tube fittings, hydraulic fittings and high pressure pipeline components rated 6000-10000 psi. Our products are interchangeable with major international brands and are exported to Europe, North America, Southeast Asia and the Middle East. Contact us for drawings, samples or OEM projects.